3Com 3CRWE754G72-A инструкция обслуживания

http://www.3com.com/ Part No. DU A-0075-4A AA 01 Rev . 01 Publ ished Ja nuary 2 004 Of ficeCo nnect AD SL W ireless 11g Fir ewal l Rout er User Gui d e 3CRWE754G72 -A 3CRWE754G72 -B WL-540A WL-540B[...]

3Com Cor poratio n 350 Ca mpu s Dri ve, Mar lboro ugh, MA USA 01752-3 064 Copyri ght © 20 04, 3Com C orpor ation. Al l right s reserved. N o part of thi s docu mentat ion may be reprod uced in any for m or by a ny me ans or us ed to make any d eriva tive work (such as tran slation , transfor mation, o r adapta tion) withou t wr itten permissi on f[...]

C ONTEN TS A BOUT T HIS G UIDE Naming C onvention 7 Conventions 8 Feedback about this User Guide 8 Related Doc umentation 9 1 I NTR ODUC ING THE R OUTER Offi ceConnect ADSL W ireless11g Fir ewall Router 11 Router Adv antages 13 Package Co ntents 13 Minimum System and C omponent Requ ir ements 1 4 Fr o nt Panel 14 Rear Panel 15 2 H AR DWARE I NSTAL [...]

4 R UNNING THE S ET UP W IZARD Accessing the W izar d 2 7 29 DSL Settings 29 Summary 33 5 R OUT E R C ONF IGURATIO N Navigating T hr oug h the Router Confi guration Pages 35 Main Me nu 35 St atus Scre e n 35 St atus 36 LAN Se tup 36 LAN Sett in gs 37 DHCP C lient s List 38 Wi re le ss 39 Configuring W ireless 39 Encryption 40 Disabled 41 WP A-PSK ([...]

Acce ss Con tr o l 54 URL Blocking 56 Schedule Rule 57 MAC Address Filte ring 59 DMZ 60 Advanced 60 SNMP 6 3 SNMP Communi ty 63 SNMP T ra p 64 Sys tem T ools 65 Restart Router 65 Reset to Factory Defaul t 65 Backup/Restore Settings 66 Upgrade 6 6 Admi n Passw ord 67 T ime and Time Z one 68 Status and Log s 69 ADSL Status 69 Log s 6 9 6 T ROUBLESHOO[...]

B T ECHNICAL S PEC IFICATIONS Offi ceConnect AD SL W ireless 11g F ir ew all Router 81 St andards 82 C S AFETY I NFORMA TION D E ND U SER S OFTWAR E L IC ENSE A GREEMENT D O BTAINING S UPPORT FOR YOUR P RODU CT Register Y our Product to Gain S ervice Benefits 91 Purc has e V alue-A dded Services 91 T roubleshoot Online 91 Acce s s Softwar e Downloa[...]

A BOUT T HI S G UI DE This gu id e descr ibes ho w to inst all and co nf igure the OfficeCon ne ct ADS L W ireless 1 1g Firewal l Rou ter ( 3CR WE7 54G 72-A /B). This gu ide is intend ed fo r use by th ose respon sible for i nstalling an d setting up net work equ ipme nt; c onsequ ent ly , it assum es a ba sic wor king knowl edg e of LANs (Loca l A[...]

8 A BOU T T HIS G UI D E Conve ntions Ta b l e 1 and Ta b l e 2 list conventi ons that ar e used thr ou ghout th is guide. F eedbac k about thi s User Gu ide Y our suggest ions ar e ver y important t o us. They will help make our docum en tati on more useful to yo u. P lea se e-m ail co mm ents ab out t his docum en t to 3Com at: pddt echpubs _comm[...]

Convent i o ns 9 Exampl e: ■ OfficeCon ne ct ADS L W ireless 11g F irewall Rou ter U se r Guide ■ Part N um ber D UA 0 075-4A AA 01 ■ Page 24 Do not u se thi s e- mail ad dress for te c hni cal suppor t quest ion s. For inform ation a bout c onta cting T ech nical Supp ort, please r efer to t he Support and Safety In formati on sheet. Rel ate[...]

10 A BOU T T HIS G UI D E[...]

1 I NTR ODUCI NG THE R OUTE R W elcome to the world o f networki ng with 3Com ® . In t he m oder n business envi ronme nt, co mm unica tion a n d shari ng in format ion i s cru cial. Com puter netwo rks h ave proved t o be one o f the f astest mo des of commu ni cat ion bu t, unt il recen tly , only lar ge bu sine sses co uld a ffor d th e networ [...]

12 C HAPTER 1: I NTRODUCING THE R OUTER Figure 1 Example Net work Without a Gate way When you use the Router in your netwo rk ( Fi gur e 2 ), it bec omes you r conne cti on to the Inter n et. C onn ection s can be m ade di rectly to th e Route r , or t o an O ffic eConn ect Swit ch or Hub , expa n ding the n um ber o f co mpu ter s yo u can ha ve i[...]

Router Advantage s 13 Rou ter Ad vant ages The adva n tage s of the Route r incl ude: ■ Shared I nter net con necti on for bo th wired and wi reless c om pute rs ■ High sp ee d 802.11 g w ireless ne tworki ng ■ No n eed f or a dedica te d, “alw ays on” compu ter serv ing as y our I nternet c onnec ti on ■ Cro ss-pl atfo rm oper ati on f[...]

14 C HAPTER 1: I NTRODUCING THE R OUTER Min imum Sy stem and Co mp onent Requirement s Y o ur Rou ter requi res that the comp ut er(s) and comp one nts in you r net work b e co nfig ured wi th a t leas t the f ollo wing: ■ A computer wit h an operati n g syst em that supports TCP/ IP netw orking protoc ols (f or exa mple W indow s 9 5/98/N T/Me /[...]

Rear P anel 15 If th is LED illu minates success ful Username/Pass wor d has been authen ticate d with your ISP . 4 Wir eless LAN (WLAN) Status LED Green If the LED is on it indicates that wireless networki n g is enabled. If the LED is flas hing , the link is OK and data i s b eing tra nsm itted or rece ived. If th e LED is off, the W ir ele ss LA[...]

16 C HAPTER 1: I NTRODUCING THE R OUTER exampl e, a hub or a swit ch). The se ports have an automatic MDI / MDIX feature , which mea ns eith er strai gh t-through or a crossover cabl e can be used. 8 Reset Button If you w an t to reset you r Rout er to fac tory defau lt setti ngs, a nd ca nno t acc ess th e w e b management inte rface (fo r exampl [...]

2 H AR DWAR E I NSTALLAT I ON Introduction Thi s ch apter will g uide you t hrough a b asic instal lation of the Router , in cl u d in g: ■ Connec ting the Rou ter to the Internet. ■ Connec ting the Rou ter to your ne twork. ■ Sett ing up yo ur co mpu ters fo r ne two rking wi th t he Ro ut er . Safet y Inform atio n WARN ING : Please read th[...]

18 C HAPTER 2: H ARDWARE I NSTALLATION When posit ioni ng you r R oute r , ensure: ■ It is ou t of direct sunl ight a nd awa y fro m sources of heat . ■ Cabli ng i s away fr om power lin es, fl uoresc ent li ghti ng fi xture s, and sources of electric al noise such a s radi os, tr ansmit ters a nd broadba nd amplif ier s. ■ W ater or moistur [...]

Connec ting the Route r 19 Figure 5 Connecting the Gate way 3 Run th e prov ide d teleph one ca ble from the wal l jack p rovidi ng ADSL service to th e ADS L port on your ADS L Ro uter . W hen inser ting an ADS L RJ-1 1 plug, be sure th e tab on t he plug cli cks into position to ensure tha t i t is pr operly seated. If you ar e using spli tte rle[...]

20 C HAPTER 2: H ARDWARE I NSTALLATION Figure 6 Installing wi th a split ter or I f you ar e using a sp litter less (G.li t e) con nectio n, then you r servic e provide r w ill atta ch the outsi de ADS L line directly to y our phon e syste m.In this case yo u c an co nne ct y our ph ones a n d comp ut er direct ly to t he inco ming ADS L line , b u[...]

Connec ting the Route r 21 Figure 7 Installing wi t hout a spli t ter Y o u h ave no w co mpleted th e hardw are instal lation of you r Rout er . Ne xt you need to set up y o ur comput ers so that t h ey can make u se of the Rou ter to co mm u ni ca te w i th th e In te rn et. 3Co m reco mmen ds tha t you per form the initia l Rout er con figur ati[...]

22 C HAPTER 2: H ARDWARE I NSTALLATION[...]

3 S E TTI NG U P Y OUR C OM PUTE RS The Ro ut er ha s the ab ility to dyna mical ly all ocate net work addresse s to the com pu ter s on your n etwor k, us ing D HC P . H ow ever , you r com pute rs need to b e conf igur ed corr ectly fo r thi s to take p lace. T o change th e configu rat ion o f your comp ut ers to al low t his, fo llow the instru[...]

24 C HAPTER 3: S ETTING U P Y OUR C OMPUTERS Figure 8 Local Ar ea Proper tie s Scr e en 6 Ensu re that t he opti o ns Obtai n an IP Address automatic ally , an d Obta in DNS se rver ad dress autom aticall y ar e both selected as shown in Figu re 9 . Click OK . Figure 9 Internet Pr otocol (TCP/I P) Proper ties Scr een 7 Restart you r com put er .[...]

Ob tain i ng an IP Add ress Aut om atic a lly 25 Win dows XP 1 From th e W ind ow s Start menu , select C o nt rol Panel . 2 Click on Network and Int ernet Con nectio n s . 3 Click on th e Network Connecti ons icon. 4 Dou ble click on LAN or Hi gh Sp eed C onn ection icon. A sc reen titled Lo cal Area Connectio n Stat us will ap pear . 5 Sel ect In[...]

26 C HAPTER 3: S ETTING U P Y OUR C OMPUTERS Dis abli n g PP PoE and P PTP Client So ft wa re I f you have PPPoE c lient soft ware insta lled on your computer , you will ne ed t o di sabl e i t. T o do thi s: 1 From th e W ind ow s Start menu , select S ettings > Co ntrol Pan el . 2 Double clic k on In t er n e t Op tion s. 3 Sel ect the Co nn e[...]

4 R UNNI NG TH E S ETUP W IZARD Ac cessin g t he Wi zar d The R out er se tup program i s Web- based, w hich m ean s tha t it is a cce ssed through your Web browser (N etsca pe Na vig ator 4. 7 or hi ghe r , In ter n et Explorer 5.0 or highe r , o r Moz illa 1. 2.1 or hi gher ). T o us e th e Se t up W i za rd: 1 Ensu re th at yo u have at least o [...]

28 C HAPTER 4: R UNNING THE S ETUP W IZA RD Figure 12 Router Login Scr een 5 When you have logge d in either: ■ The Statu s scre en wil l appear ( Fi gur e 13 ) . Select Wi z ar d from the menu . or ■ If y our Ro ut er ha s not bee n co nfi gur ed bef o r e, t he W iz ar d wi l l la un ch autom atical ly (r efer t o Fi gu r e 1 4 ). 6 Y o u wi [...]

Ac cessi ng the Wizar d 29 Figure 13 Status Sc re en DSL Se ttings Figure 14 DSL Setti ngs Scr een[...]

30 C HAPTER 4: R UNNING THE S ETUP W IZA RD The DSL M ode w ind ow a llow s yo u to se t up th e Rou ter fo r the t yp e of I ntern et co nnec ti on yo u ha ve. Bef o r e s ett in g up yo ur DS L conn ect ion mo de, hav e you r ac co unt i nform atio n from yo ur I SP ready . Sel ect a DSL mode fr om the follo wing: ■ PPPoE see page 30 ■ PPPoA [...]

Ac cessi ng the Wizar d 31 3 Re-t y pe your PP P o ver Et h ernet pass wor d in t he Rety pe Pa sswor d text box. 4 Ente r y our VPI an d VCI inf o rmatio n in the VPI/ VCI te x t bo xe s. 5 Chec k all of y our setti ngs, and the n click Next . PPPoA M ode Figure 16 PPPoA Scr een T o setu p the r outer fo r use with a P PP over A TM (PPPoA) c onnec[...]

32 C HAPTER 4: R UNNING THE S ETUP W IZA RD Figure 17 RFC1483 Routed Configura tion Scr een 1 Ente r y our In ter net I P ad dr ess in the WAN I P te xt bo x. 2 Ente r the subnet mask in th e Sub net Mas k text bo x. 3 Ente r y our VPI an d VCI inf o rmatio n in the VPI/ VCI te x t bo xe s. 4 Ente r the default g ate way in t he Defau lt G a teway [...]

Ac cessi ng the Wizar d 33 Figure 18 RFC1483 Bridged Configur ation Screen 5 Ente r y our VPI an d VCI inf o rmatio n in the VPI/ VCI te x t bo xe s. Chec k all of y our setti ngs, and the n click Next . Summa ry Figure 19 C onfigurat ion Summary Sc re en[...]

34 C HAPTER 4: R UNNING THE S ETUP W IZA RD When you comp lete the Setup Wizard , a config urat ion summary will displa y . Verify the co nfigur ation i nfor mat ion o f the R out er an d the n cl ick Apply to sa ve y our se ttings. 3Co m reco mmen ds tha t you prin t this p age fo r y ou r re co rd s. Y o ur Rou ter is no w configu red a nd ready [...]

5 R OUTER C ON FIGUR ATION Nav igating Through the Router Config uration Pag e s Th is ch ap ter d es c ri be s a l l th e scre e ns a va il a bl e thro u gh th e R ou te r conf igu rati on pages, and i s pro vid ed as a ref erenc e. T o get to the config urat ion p ag es, browse to the R outer by enter ing t he UR L in t he locat ion bar of y our [...]

36 C HAPTER 5: R OUTER C O N FI GUR A TI ON Status Figure 20 Status Scre en Ther e are two b uttons on thi s scr een - Connec t an d Disco nnec t . T h ese butt ons all ow y ou to m a nuall y conn ect or di sconne ct y our rout er from your ISP’ s service. LAN Setup Y our Router is eq uipped wi t h a DHCP server that will automatically assi g n I[...]

LAN Setup 37 The Route r will also pro vid e you with a li st of al l clien t computers connec ted to the netwo rk. T o view t he list, clic k D HCP cli ents list . LAN Se ttings Figure 21 LAN Setti ngs Scre en The LAN Settin gs scre en is used to specif y the LAN IP addr ess of your Rou ter , a nd to co nfi gu re th e D HC P se r ve r . 1 Sel ect [...]

38 C HAPTER 5: R OUTER C O N FI GUR A TI ON DHCP Clie nts Li st Figure 22 DHCP Cli ent s Li s t S cr een The D HCP Clients List pr ov ides deta ils on t he devices that have r eceived I P addr esses fr om the Router . The l ist is on ly cr eated when the Router is set up as a DHCP server . For eac h device that is connect ed to the LAN the fol lowi[...]

Wireless 39 Wi r e le ss From t hese pa g es yo u can conf igure t he set ting s for wireless co nnec tion s. Figure 23 W ir eles s Settin gs Screen This scree n all ows y ou to e nab le or disa ble the w ireless sectio n of y our LAN. When disab led, no wirel ess PCs can gain acc ess to eith er th e Inter ne t or other PCs on y our W ired o r W ir[...]

40 C HAPTER 5: R OUTER C O N FI GUR A TI ON Y o ur Router is ca pab le o f bl ocking th is "ran dom " se arching fo r a networ k. I f you disabl e the " Br oadcast SSID" feat u r e, the only way a computer c an joi n the networ k is by sett ing the computer's SSI D to the specif ic nam e of the netwo rk (li ke W LA N). B e [...]

Wireless 41 ■ 64-b it WEP (see pag e 42 ) ■ WP A (wi th RA D IUS Ser ver ) (see pa g e 43 ) Sel ect the r equir ed val ue fr om the dr op down list, an d pres s Ap ply . Disa ble d In this mode , wireless tran smissio ns will not be e ncry pted, a nd w ill b e visible to e veryon e. How ev er , w h en setti ng up o r d ebug ging w ireless netw [...]

42 C HAPTER 5: R OUTER C O N FI GUR A TI ON 128-b it WEP Figure 27 128-bit WEP Scr een WEP is the bas ic mechani sm to trans mit your data sec urely over the wireless net wor k. Ma tching e n crypt ion key s mu st be setup on you r Router and w ireless clien t de vices t o u se W EP . 1 Y o u c an ei ther e nte r you r W EP key as 13 pa irs of h ex[...]

Wireless 43 WEP is the bas ic mechani sm to trans mit your data sec urely over the wireless net wor k. Ma tching e ncr ypti on key s mu st be setup on you r Router and w ireless clien t de vices t o u se W EP . 1 Y o u c an ei ther e nter y ou r WEP k ey as 5 p airs of hex digi ts (0- 9, A- F), or ente r a m emorabl e passp h rase in the Passphrase[...]

44 C HAPTER 5: R OUTER C O N FI GUR A TI ON 3 Ente r the key for th e RADIUS se rver in the RA DIU S Key fi el d. 4 By def au lt, the WP A keys ar e c hanged ev ery hour , but i f you wish to ch ange t his yo u ca n do so by spe cifyi ng the required t ime in th e Re- key In te r va l fiel d, in m inut es 5 Click Apply . In ternet S etting s From t[...]

Inte rne t S etti ngs 45 PPPoE Figure 31 PPPoE Settings S c r een 1 Ente r the User Name assig ned to y ou by your ISP in the User Name field . 2 Enter t he Pa ssword assign e d to y ou b y your I SP in the Passwor d fiel d. Re-en ter yo ur password in th e Re type P asswor d fiel d . 3 If your ISP assigns yo ur IP ad dress dyna mical ly , t hen se[...]

46 C HAPTER 5: R OUTER C O N FI GUR A TI ON 8 Click Apply . PPPo A Figure 32 PPPoA Setti ngs Scr een 1 Ente r the User Name assig n ed to y ou by your ISP in the User Name fiel d. 2 Enter t he Pa ssword assign ed t o you b y y our IS P in th e Password fi eld. Re-en ter yo ur password in th e Re type P asswor d fiel d . 3 If your ISP assigns yo ur [...]

Inte rne t S etti ngs 47 Ente r a v a lue of 0 to disa ble th is t imeout. 8 Click Apply . Bri dged Mode for Sing le PC Figure 33 Bridge Mode for Single PC Scr een 1 Ente r the VPI and VC I param et ers pr ovided to y ou by your ISP in the VPI and VCI fie l ds . 2 Sel ect the encapsulat ion type (LLC or VC MUX) in the En capsu lati on T ype field. [...]

48 C HAPTER 5: R OUTER C O N FI GUR A TI ON 3 Sel ect the e ncapsul ation ty pe (LLC or VC MUX) i n th e Enc apsul ation fi eld . This inf o rmation wi ll hav e been pr ovided to you by your ISP . 4 Click Apply . DNS Figur e 35 DNS Scree n If your ISP provided yo u with spec ific DNS ad dresses to us, en ter th em i nto the appr op riat e fields on[...]

Routi ng 49 Stat ic Ro utes Figure 36 Static Route P arameters Scr een The St atic R oute Parameter scre en shows a list o f curr ent static r oute entr ies. For each entr y , the foll owing in formati on is dis play ed : ■ In d ex — the index of the en try ■ Network Address — t he network addr ess of the r oute. ■ Subn et Mask — the su[...]

50 C HAPTER 5: R OUTER C O N FI GUR A TI ON Y o u c an set up R IP in depend en tly on b ot h LA N and W AN inter faces. 1 Sel ect the R IP Mode Enable rad io bu tton. 2 Sel ect the ap p r o pri ate radio butto n to enable or disable Auto Summary . Auto S umma riza tion sends simpli fied routing data t o other R IP-ena bled de vi c es rat h er tha [...]

Fire wall 51 Figure 38 Routing T able Scr een Fir ewall From the se pa ges y ou ca n c onfigure se ttings for t he firewa ll. Figure 39 Fir ewall Sc ree n Y o ur Rou ter is e quipp ed w ith a firewa ll that will pro tect y our ne tw ork from a w ide a rray of com mo n hac ker a ttack s includi ng P ing o f Dea th (PoD) a nd Den ial of Se rvi ce (Do[...]

52 C HAPTER 5: R OUTER C O N FI GUR A TI ON Spec ial App lica tio ns F igure 40 Speci al Applic ations Scr een Special Ap plication s let you speci fy specific ports to be open for specif ic applic ations to work pr o perly with the Network Addres s T ranslatio n (NA T) featu re o f the Ro uter . A list of popular ap plicati ons has been incl u ded[...]

Fire wall 53 4 Click Apply . Virtua l Se rvers Figure 41 V i rtual Serve rs Screen This f u nc tion will al lo w yo u to ro ute external ( Intern et) cal ls for ser v ices such a s a w eb s erver (po rt 80 ), F TP s erver (Por t 21), or ot her appl ication s through yo ur Rou ter to yo ur inter n al ne two rk. Si nce yo ur in tern al comput ers are[...]

54 C HAPTER 5: R OUTER C O N FI GUR A TI ON Clien t IP Filter s The R o uter ca n be configur ed to r estric t access t o the Int er net , e-mail o r other netwo rk ser vices at spec ific day s and times. Re strictio n can be set for a single compu ter , a range of comput ers, or mult iple computers. Acc ess Cont r ol Figure 42 Acces s Contr ol Scr[...]

Fire wall 55 Figure 43 Add PC Scree n 2 Enter a desc ription f or t he f ilter y ou are def ining i n the Client P C Descript ion field . 3 Ente r the IP addr ess or IP addr ess range in to the Client I P Address fie ld s. 4 Sel ect the s ervic es to b e blocked . A list of p opular ser v i ces is given on this scr een, to bl ock a parti cular serv[...]

56 C HAPTER 5: R OUTER C O N FI GUR A TI ON URL Blo cking Figure 44 URL Blocking Scr een T o c onfigur e the URL Blo ckin g feat ure , use the ta b le on t h e URL B locki ng page t o sp ecify th e we bsites ( ww w .some site.c om ) and/ or key words you want to fil ter on you r netwo rk. For exa m ple, enter ing a keyword of “xx x” would blo c[...]

Fire wall 57 Sche dule R ule Figure 45 Schedule Rule S cr een The Route r c an be con figur ed to restr ict access t o the Internet , e-mail o r other network s ervic es at speci fic days and times . These sc hedule r ules ar e u sed by the rules defined on the A ccess Control page ( see “Acc ess Co n trol ” on pa ge 54 ). T o add a sc hedule r[...]

58 C HAPTER 5: R OUTER C O N FI GUR A TI ON Figure 46 Add Schedule Rule Sc reen 2 Ente r a name and comment fo r the sch edule rule in the Na me and Com ment fie ld s. 3 Spec ify th e schedu le rules f o r th e requir ed days and t imes - note that all times shou ld be in 2 4 ho ur fo rma t. 4 Click Apply .[...]

Fire wall 59 MAC Address Filterin g Figure 47 M AC Addr ess Filtering S creen The MAC Addr ess Filt er is a powerful sec u rit y featu re th at allows you to spec ify whi ch computers ar e allowed on the W ir eless n etwork. Any wir eless comput ers at temptin g to acc ess the net work that ar e n ot specifi ed in the filt er li st will be denied a[...]

60 C HAPTER 5: R OUTER C O N FI GUR A TI ON DMZ Figure 48 DMZ Scre en I f you have a cl ient PC that cannot run an Intern et applic ation pr operl y from beh in d the f irewal l, you can open the c lien t u p to un restricte d two- way Internet acc ess. Thi s may be neces sary if t h e NA T featur e is causing prob lems with an app licat ion su ch [...]

Fire wall 61 ■ Remo te A dmin Figure 49 Advanced Screen NA T En able Befor e you enable th is f unction , make sur e you have changed the administ rator password. Netwo rk A ddress T ran slation (N A T) is t he method by whic h t he router shares t he sing le IP addres s assigned by yo ur ISP wit h the c omput ers on yo ur netw ork. Th is funct i[...]

62 C HAPTER 5: R OUTER C O N FI GUR A TI ON Rout er ship s with the Uni v ersal Plu g an d Play featu re d isabled . If y ou are using any applicat ions tha t are Unive rsal Plug and Play complian t, and wish to take advan t age of th e Unive rsal Pl ug and Play f eatur es, you can enable t h is featu re. Simply selec t Enable in the UPnP Enabling [...]

SNMP 63 SN MP S NMP (Sim ple Ne tw ork Ma na gement Prot ocol) allows remot e manag em ent of yo ur route r by a P C tha t ha s an SNM P ma nagem e nt agent insta lled. SN M P Co m mu ni ty Figure 50 SNMP Community Scr een T o Co nfig ure SNM P: 1 In t h e C omm unity c olumn, enter the name of the SNMP c o mmunicatio n chan nel. Y our SN MP ma nag[...]

64 C HAPTER 5: R OUTER C O N FI GUR A TI ON SNM P T rap Figure 51 SNMP T rap Scr een Y o u c an co nfig ure your r out er to se nd status m essa ges t o the S NM P manage ment agent if a p ro blem occur s on th e network. T o config u r e tra ps : 1 In t h e I P Address f ield, enter the IP ad dress of t he PC t o wh ich y ou wa n t your r out er t[...]

Syst em Tool s 65 Sys tem T o ols These page s let s yo u man age different par ame ters of the router an d perfor m ce rtai n adm inistr ative f unction s. Rest ar t Rou ter Figure 52 Restart Router Sc reen Somet imes i t ma y be necessa ry t o Re start o r Reboot the Rout er . Resta rting or Rebooting the Router will n ot delet e any of your conf[...]

66 C HAPTER 5: R OUTER C O N FI GUR A TI ON before you restore all of th e defau lts. T o restore t he fac tory de faul t settings, c lick Re set . Ba ck up /R est ore Settin gs Figure 54 Backup/Restor e Settings Sc reen Y o u c an sav e your cu rrent co nfig urati on by usi ng this feat ure. Savi ng yo ur config u rati on will allow you to restor [...]

Syst em Tool s 67 From ti m e to ti me 3 C om may rel e a se ne w v ers io n s of th e Rou ter s firmw are. Fir mwa re upd ates co nt ain im provem ent s and f ixes t o prob lems that may h ave exist ed. Pl ease do wnload t he fir mwar e fi le to y our PC first, an d then click Br owse an d s ele c t th e fi r mw a re f ile . C lic k Up grade to up[...]

68 C HAPTER 5: R OUTER C O N FI GUR A TI ON make any mor e changes. The lo gin timeout opti o n is fo r sec urit y purpo ses a nd the d efaul t is set t o 5 minu tes. As a not e, on ly on e compu ter can be l ogg ed into the Ro uter's we b m anage ment interf ace at one ti me. Time an d Tim e Zone Figure 57 T ime and Tim e Zone scr een The Rou[...]

Stat us and Logs 69 Status a nd Logs Y ou can use th e Status pages to vi ew versio n numbers fo r yo ur r ou ter’ s softwa re and hardware a nd che ck the sta tus of co nnec tions to WAN, LAN and W LAN inter fac es. ADSL Stat us Figure 58 ADSL Sta tus Scr een This sc reen shows modem statu s and statistic s Logs Figure 59 Logs Scr een This sc re[...]

70 C HAPTER 5: R OUTER C O N FI GUR A TI ON Click Clear to clear the log (n ote that al l curr ent entri es will be er ased). Click Save to save the log to disk i n a t ext file . Wh en prom pte d for a l ocati o n to s ave th e file to, specify a fil en ame an d lo catio n , and then cli ck OK .[...]

6 T R OUBLESH OOTI NG Basic Con nection Check s ■ Check that th e Route r is conn ected to your compu ters and to the telepho ne line , and that a ll th e eq uipm ent is pow ered on . Ch eck th at the LAN Stat us a nd DSL L E Ds on the Route r are ill uminat ed, an d t hat any corres pondi ng LE Ds on th e NIC a re also illum inated. ■ Ensu re [...]

72 C HAPTER 6: T ROUBLESHOOTING ■ If you c anno t b rowse to t he Ro uter , us e the wi ni pcfg utility in W indo ws 95/98/ M E to verif y tha t yo ur com puter has rece ived t he correct address i nfor mat ion f r om the Rout er . From th e St a r t m enu, choose Ru n and th en en ter winipcf g . Check that the com puter ha s an IP address o f t[...]

Wirel ess Networ king 73 4 Pr ess and hold the Rese t b utton o n the r ear panel (see “Rear Pa n el” on page 1 5 ) for 5 second s. 5 The Route r will r estart, and when th e start-up seq u ence has c omplet ed, browse to: http :/ /1 92. 16 8. 1. 1 and run t he c onf igura tion wiza rd. Y o u m ay n eed to restar t you r com pu ter befo re yo u[...]

74 C HAPTER 6: T ROUBLESHOOTING Add itional ly consi der movi ng the wirel ess com pute r cl oser to the Router to co nf irm tha t t he bu ilding structu re or fitt ings are no t adv ersel y aff ec tin g the connec tivity . If th is r esolv es the pr oblem consid er r elocating the W ir eless computer o r the Rout er , or tryi n g a different cha n[...]

Fre quently Aske d Questio ns 75 Ensure that one of your com put ers has a copy of the new software image file sto r e d on its ha rd disk or avai lable o n CD- ROM . The lat est soft w are is avail able on 3Com’ s W eb site at : www. 3c om .co m 1 Remo ve pow er from the Ro uter and di sco nnec t the telep hon e line an d all your computer s, ex[...]

76 C HAPTER 6: T ROUBLESHOOTING There are o nly 4 L AN ports on th e Ro uter . H ow are ad ditio nal com p ute rs c on ne ct ed? Y o u c an exp and t he nu mb er of c onn ection s avai lable o n y our LA N by usi ng hub s, sw itches and wireless acc ess point s co nnec ted to the Rou ter . 3Com w ireless access p oint s and h ubs and swi tche s pro[...]

A IP A DD R ESSING Th e Int er n e t Protocol Sui te The Inte r net pr otoc o l suit e c onsis ts of a well -defined s et of commu ni catio ns protocol s and seve ral sta ndard ap plication protoc ols. T ransm ission Co ntrol Protoc ol/I nter net Protocol (T CP/IP ) is p robably t he most wi dely know n and is a comb in ation of two of the prot oco[...]

78 A PPENDIX A: I P A DDR ESSI NG Fo r you r n etw o rk to w or k c or rec tly , a l l d ev ic es on t he n e tw or k m ust h av e : ■ The same s ub-networ k addre ss . ■ The sam e subnet m ask. The onl y value th at will be di fferen t is t he specifi c ho st device n u mber . This va lue must alwa ys be un ique. An ex ampl e IP address is ‘[...]

Ho w does a Device Obtai n an I P Addres s and Subnet Mask? 79 This ty pe o f IP Add ress ope ra tes on a subne t ma sk of ‘2 55.2 55.0 .0’. See Ta b l e 4 f or an exam pl e about h ow a ne tw ork (on ly fo ur co mpu ter s represented) and a R out er might be conf igured. Ta b l e 4 IP Addres sing and Subne t Masking How does a Devi ce Obt a in[...]

80 A PPENDIX A: I P A DDR ESSI NG an IP a ddress at ran dom from t he indu stry sta ndard subn et o f 169.25 4.x. x (wi th a subne t ma sk of 25 5.2 55.0 .0). If tw o dev ices a lloca te themselv es the same addr ess, the conf lict is dete cted and one of the devices allocates itself a new address. Autom ati c IP a ddressing supp ort wa s in troduc[...]

B T ECHNI CAL S PECIFICATIONS This secti o n lists th e technical spec ificatio ns for the O ff iceConnect ADSL W ireless 11g F irewall Rou ter . Off ice Conn ect ADS L Wi r e le ss 11 g Firew a ll R o ut er Interfac es DSL c onn ect ion LAN con necti on — fou r 10M bps /100 Mbps d ua l spee d Ethe rn et p orts (10BASE- T/100BASE-TX) WLAN Interfa[...]

82 A PPENDIX B: T ECHNICAL S PECIF ICATIO NS Ma ximum cli ents: 12 8 O /P Pow er 16dBm Operatin g T e m peratu re 0 °C t o 40 °C (32 °F to 105 °F ) Pow er 8V A , 25 BThU/ hr Hum id ity 0 % t o 9 0 % (no n- conde nsing ) hu midity Di me ns io ns ■ W idt h = 220 mm (8.7 in.) ■ Dept h = 133 mm (5. 2 in.) ■ Height = 3 8 m m (1.5 in.) We ight [...]

OfficeConn ect ADS L Wirele ss 11 g Firewal l Route r 83 Sy ste m Requi r ements Opera ting Syste ms The Ro uter w ill suppo rt t he fol lowing O per ating Sy stem s: ■ W indo ws 95 /98 ■ W indo ws N T 4 .0 ■ W indo ws M E ■ W indo ws 20 00 ■ W indo ws X P ■ Ma c OS 8.5 or hi gher ■ Unix Ether n et Perform ance The Router compl ies to[...]

84 A PPENDIX B: T ECHNICAL S PECIF ICATIO NS[...]

C S AFETY I N FORMA TION Importa nt Safe ty In form atio n WARN ING : Warn ings c ontain direc tions that y ou must fol low f or yo ur personal saf ety . Follow all dir ec tio ns carefully . Y ou must rea d the f o ll owing s afe ty i nforma tion car efull y be fore y o u install or rem ove th e unit : WARN ING : The Rou ter g enerat es and use s r[...]

86 A PPENDIX C: S AFETY I NFORM ATION WA RN IN G : RJ -4 5 por ts. These are sh iel ded RJ-45 dat a socket s. They cann ot be u sed as teleph one so ck ets. On ly c onnec t RJ-45 dat a conn ectors to thes e socket s. Wi ch tige S ich erhe it shi nweis e VORSICH T : W arnhin weise enth alten Anweisungen, die Sie zu Ihre r eigene n Sich erhei t be fo[...]

87 VORSICH T : Es sin d keine vo n dem Benutz er zu ersetz ende oder zu warte nde T e ile in dem Ger ät v orhande n . Wenn S ie e in Pro blem m it dem Rou ter habe n, da s n icht mit tels de r Fehl eran alyse in dies er Anleit ung behoben werden kan n, setzen Sie s ich mit Ih rem L ie feranten in Ve r bind ung . VORSICH T : V or dem Ausbau des Ge [...]

88 A PPENDIX C: S AFETY I NFORM ATION condi tions ne so nt mai ntenue s que si l'é quipem ent auqu el il e st r acco rdé fo ncti onn e da ns le s mê me s co nd it io ns. A VERTI SSEM ENT : Il n’y a pas de parties rem placea bles par les uti lisateurs ou en treten ues par les utili sateurs à l’int érieur du moyeu. Si vous a vez un prob[...]

D E ND U SER S OFTWARE L IC EN SE A GR E EM EN T 3Com Cor poration E ND USER SOF TW ARE LI CENS E AGRE EMENT YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE DOWNLOADING, INSTALLING AND USI NG THIS PRODUCT, THE USE OF WHIC H IS LIC ENSE D BY 3CO M CORPORATIO N ("3C OM") TO ITS CUSTO MER S FOR THEIR US E ONLY A S SET FOR[...]

90 A PPENDIX D: E ND U SER S OFTWARE L ICENSE A GREEMENT and de veloped solely at privat e expe nse. Th e Softwa re is de livered as "Com mercial Comput er Softw are" as defined in DFARS 252 .227- 7014 (J une 1995) or as a com merci al item as defined in FAR 2.1 01(a ) and as such is p rovided w ith only such ri ghts as a re provi ded in [...]

D O BT AI NIN G S UP PORT FOR YO UR P R ODUCT Registe r Y ou r Product t o Gai n Serv ice B e ne fits T o take advan tage of warr an ty and othe r servic e b enef it s, you must first r egi ste r y our pr od uct at h ttp: // eSu pp or t.3c om .c om / . 3 Com eSu pport servic es are ba sed on acc oun ts tha t yo u creat e or have a utho rizat ion t [...]

92 A PPENDIX D: O B TAINING S UPPORT FO R YO UR P RODUCT http :/ /w ww. 3c om .com /p ro df orm s/so ft wa re /c onn ecti on _a ss is tan t/ca _t ha nky ou .h tml Ac ces s So ftw a r e Do wnloa ds Softw are Up dates are the bug fix / mai n tena nce re leases for t he version of sof tware initi ally p urchased with t he product . In order to a ccess[...]

Tele phone T echnic al Suppor t and Re pair 93 be retur ned to the se nder unope ned, at the sen der’ s expen se. I f your product is regi stered and und er war ran ty , yo u c an ob tain a n RM A num ber onl ine a t ht tp :/ /eSup po rt .3 co m.co m/ . First time us ers wil l need to ap ply fo r a user name and p asswor d. T elep hon e numbe rs [...]

94 A PPENDIX D: O B TAINING S UPPORT FO R YO UR P RODUCT Publi shed 1 6th J uly 2 003 Latin Ameri ca T elephone T echnic al Support and Repa i r Antigu a Argentina Aruba Bahama s Barbado s Be lize Bermuda Bonair e Brazi l Cayman Chile Colombia Costa Ri ca Curacao Ecu ador Dominic a n Repu blic 1 800 988 2112 0 810 444 3COM 1 800 998 2112 1 800 998 [...]

G LOSSARY 802.1 1b The IEEE specif ication fo r wireles s Etherne t which all o ws speed s of up to 11 Mb ps. Th e standa r d prov ides fo r 1, 2, 5.5 and 1 1 M bp s dat a rate s. The rates w ill switch au toma ticall y depen ding on r ange and envi ronme nt. 802.1 1g The IEEE specif ication fo r wireles s Etherne t which all o ws speed s of up to [...]

96 G LOSSARY common s peed. Th e or d er o f pr efer ence (bes t fi rst) is : 100B ASE-TX full duplex , 10 0BA SE-T X hal f dupl ex, 10BA SE-T f ull d uplex, and 1 0BA SE- T half d uplex. Aut o-ne gotia tion is define d in the IEEE 8 02.3 stan dard for Ethe r net and is an operat ion that tak es place in a few m illis econds . Band width The in for[...]

G LOSSARY 97 host c omput ers and the ir respective doma in n ames a nd IP address es, so tha t when a do mai n nam e is reques ted (as in t yp ing “3 com .co m” into your Intern et br owser), the us er is se nt to t he pro p er IP addres s. Th e DNS serve r address use d b y the c omp uters on yo ur hom e ne tw ork is the l ocati on of the DNS[...]

98 G LOSSARY IEEE I nstitute of El ec tri c al and Electr o nics Engineer s. Thi s Ameri c an organi zatio n was fou nded in 196 3 and se ts standa rds for comp uters and co mmu nica tio ns. IETF In ter net Engi neering T a sk Fo r ce . A n organi zatio n respon sible for pr ov i ding en gi nee ring so lut ion s fo r TCP / I P net wor ks. In t he n[...]

G LOSSARY 99 MAC Address M edia Access Con tr ol Ad dress. A lso cal le d th e ha r dwa re or ph ysi cal address. A laye r 2 a ddress assoc iated w ith a par ticular ne tw ork de vic e. Most device s that co nnec t to a LA N h ave a MAC ad dress assi gned to them as th ey ar e u se d to identi fy other devic es in a network. MAC addresses are 6 b y[...]

100 G LOSSAR Y Ser ver A compute r in a netwo rk that i s shar ed by multi p l e end statio ns. Serve rs provide end sta tion s with acce ss to shared ne twor k servic es such a s compu ter files a nd print er queues. SSI D Servi ce Set Iden tifier . Some vendors of wir eless pr oducts u se SSID int erc h angeably with ESSID. Subne t Add re ss An e[...]

G LOSSARY 101 URL Fil ter A UR L Filte r is a featur e of a f ir ewall that allows it to sto p its clients form browsing inapprop riate Web si tes. WAN W ide A rea Ne tw ork. A netw ork tha t conn ect s com pu ters loca te d in geog raph ically separat e a r e as ( for e xam ple, di fferent bu ilding s, cities, or countr ies). The Int ernet is an e[...]

102 G LOSSAR Y[...]

I NDEX A Addr esses IP 77 Automat i c Addr essing 79 C Cable Specifi cati ons 83 Channel s 105 Convent ions noti ce icons, About Thi s Gu ide 8 text , About Thi s Guide 8 D DHCP 3 8, 79 DHCP Ser ve r 25 DNS 24 Dynam ic I P Addre ss 3 1 F For g ot ten P assw ord 72 I Inte r ne t addr esses 77 IP Add ress 37, 77 L LED 1 4 N Networ k addr esses 77 Net[...]

104 I NDEX[...]

R EGUL AT OR Y N OTICES FOR TH E O FF I C E C ONNECT ADSL W IRELES S 11 G F IREWALL R OU TER Channe ls Use of the O fficeCon ne ct ADS L W i reless 11g F irewal l Rou ter is only aut horize d for the ch anne ls approv ed b y ea ch cou ntry . Fo r p roper install ation, login t o the m a nageme n t interf ace an d se lect your c oun try from th e dr[...]

106 Howeve r , ther e is no guarant ee that interf erence wi ll no t occur in a partic ular inst allation. In form atio n t o th e Us er If this equi pm ent doe s caus e interf erence to r adio or tele visi on receptio n, which can be det ermin ed by tur ning th e equi pm ent off and o n, t he user i s encour aged to tr y to cor rec t the interf er[...]

107 ■ 15.107 (e )Cla ss B C onduct ed L imits 15.109 (g)C lass B Radia ted E missions L imi ts Expo sure to Ra dio Frequ ency Radia tion: T he r adia ted out pu t pow er of th e 3Co m AD SL 11 g W irel ess Rou ter is far be low the F CC r adi o frequenc y expo sure limits. N ev erthel ess, t he 3Co m O fficeCo nnec t AD SL W ir eless 11g Fi rewa [...]

108[...]

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