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Cisco Systems DNC-305 manual

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Table of contents for the manual

  • Page 1

    DNC-305 Cisco IOS Dial Services Config uration G uide: Network Service s Telco and ISP Dial Scenarios and Configurations This chapter pr ovides sample hardw are and softw are conf igurations fo r specif ic dial scena rios used b y telcos, Internet service pro viders (ISPs), regional Bell operatin g companies (RBO Cs), inter -e xchange carriers (IXC[...]

  • Page 2

    Telco and ISP Dial Scenarios and Configurations Small- to Medium-Scale PO Ps DNC-306 Cisco IOS Dial Services Config uration Guide: Network Services Individual Remote PCs Using Analog Modems ISPs can configure a single Cisco AS5200 access servers to receiv e analog ca lls from remote PCs connected to modems, as sho wn in Figure 51. The poin t of pre[...]

  • Page 3

    Telco and ISP Dial Scenarios and Configurations Small- to Medium-Scale POPs DNC-307 Cisco IOS Dial Services Confi guration Guide: Network Servic es controller T1 0 framing esf clock source line primary linecode b8zs pri-group timeslots 1-24 ! controller T1 1 framing esf clock source line secondary linecode b8zs pri-group timeslots 1-24 ! interface [...]

  • Page 4

    Telco and ISP Dial Scenarios and C on figu rations Small- to Medium-Scale PO Ps DNC-308 Cisco IOS Dial Services Config uration Guide: Network Services line aux 0 login authentication console line vty 0 4 login authentication vty transport input telnet rlogin ! end Some service prov iders use a remote T A CA CS+ or RADI US security server in th is d[...]

  • Page 5

    Telco and ISP Dial Scenarios and Configurations Small- to Medium-Scale POPs DNC-309 Cisco IOS Dial Services Confi guration Guide: Network Servic es version 11.2 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption no service udp-small-servers no service tcp-small-servers ! hostname NAS ! aaa new-mo[...]

  • Page 6

    Telco and ISP Dial Scenarios and C on figu rations Small- to Medium-Scale PO Ps DNC-310 Cisco IOS Dial Services Config uration Guide: Network Services ip classless ! dialer-list 1 protocol ip permit ! line con 0 login authentication console line 1 48 autoselect ppp autoselect during-login login authentication dialin modem DialIn line aux 0 login au[...]

  • Page 7

    Telco and ISP Dial Scenarios and Configurations Small- to Medium-Scale POPs DNC-311 Cisco IOS Dial Services Confi guration Guide: Network Servic es Terminal Adapter Co nfiguration Example The follo wing e xample confi gures a Ci sco AS5200 access server to enable PCs fitted with internal or external te rminal adapters to dial in t o an IP network. [...]

  • Page 8

    Telco and ISP Dial Scenarios and C on figu rations Small- to Medium-Scale PO Ps DNC-312 Cisco IOS Dial Services Config uration Guide: Network Services interface Serial1:23 no ip address encapsulation ppp dialer rotary-group 0 dialer-group 1 no fair-queue no cdp enable ! interface Dialer0 ip unnumbered Loopback0 no ip mroute-cache encapsulation ppp [...]

  • Page 9

    Telco and ISP Dial Scenarios and Configurations Small- to Medium-Scale POPs DNC-313 Cisco IOS Dial Services Confi guration Guide: Network Servic es Mixture of ISDN and Analog Modem Calls ISPs can configure a single Cisco AS5200 access serv er to recei ve calls from a mixture of remote PCs connected to terminal ad apters and modems, as show n in Fig[...]

  • Page 10

    Telco and ISP Dial Scenarios and C on figu rations Small- to Medium-Scale PO Ps DNC-314 Cisco IOS Dial Services Config uration Guide: Network Services Note This conf iguration assumes that only indi vidual remote PCs are dialing in; no remote routers are dialing in. Fo r a remote router dial -in configuration, see the chapter “Enterprise Dial Sce[...]

  • Page 11

    Telco and ISP Dial Scenarios and Configurations Small- to Medium-Scale POPs DNC-315 Cisco IOS Dial Services Confi guration Guide: Network Servic es interface Serial1:23 no ip address encapsulation ppp isdn incoming-voice modem dialer rotary-group 0 dialer-group 1 no fair-queue no cdp enable ! interface Group-Async1 ip unnumbered Loopback0 encapsula[...]

  • Page 12

    Telco and ISP Dial Scenarios and C on figu rations Large-Scale POPs DNC-316 Cisco IOS Dial Services Config uration Guide: Network Services Large-Scale POPs This section describes how to set up a stack of acces s servers for a large-scal e dial soluti on in the follo wing sections: • Scaling Considerations • How Stacking W orks • Stack Group o[...]

  • Page 13

    Telco and ISP Dial Scenarios and Configurations Large-Scale POPs DNC-317 Cisco IOS Dial Services Confi guration Guide: Network Servic es How Stacking Works Before you install and configure a stack of access se rv ers, you should understan d the basic concepts described in the follo wing sections, and ho w they wo rk together in a lar ge-scale dial-[...]

  • Page 14

    Telco and ISP Dial Scenarios and C on figu rations Large-Scale POPs DNC-318 Cisco IOS Dial Services Config uration Guide: Network Services Because device #1 is the f irst access server to rece i ve a packet and establish a link, this access server creates a virtual interf ace and becomes the b undle master . The bu ndle master takes o wnership of t[...]

  • Page 15

    Telco and ISP Dial Scenarios and Configurations Large-Scale POPs DNC-319 Cisco IOS Dial Services Confi guration Guide: Network Servic es Figur e 56 A Stack Gr oup of A ccess Servers U sing MMP with an Of fload Processor Using the Stack Group Bidding Protocol The Stack Group Bidding Protocol (SGBP) is a critical component used in multichassis multi [...]

  • Page 16

    Telco and ISP Dial Scenarios and C on figu rations Large-Scale POPs DNC-320 Cisco IOS Dial Services Config uration Guide: Network Services Note An offload server will al ways serv e as the b undlemaster b y bi dding a higher v alue than the other devices. Using L2F L2F is a critical component used in multichassis mu ltilink sessions. If an acce ss [...]

  • Page 17

    Telco and ISP Dial Scenarios and Configurations Large-Scale POPs DNC-321 Cisco IOS Dial Services Confi guration Guide: Network Servic es aaa accounting network start-stop radius aaa accounting exec start-stop radius enable secret cisco ! username admin password cisco username MYSTACK password STACK-SECRET sgbp group MYSTACK sgbp member AS5200-2 10.[...]

  • Page 18

    Telco and ISP Dial Scenarios and C on figu rations Large-Scale POPs DNC-322 Cisco IOS Dial Services Config uration Guide: Network Services ppp authentication chap pap dialin group-range 1 48 ! interface Dialer0 ip unnumbered Loopback0 no ip mroute-cache encapsulation ppp peer default ip address pool dialin_pool dialer in-band dialer-group 1 no fair[...]

  • Page 19

    Telco and ISP Dial Scenarios and Configurations Large-Scale POPs DNC-323 Cisco IOS Dial Services Confi guration Guide: Network Servic es Cisco AS5200 Access Server #2 The follo wing e xample runs on the Cisco AS52 00 access server la beled #2 sho wn in Figure 56: ! version 11.2 service timestamps debug datetime msec service timestamps log datetime [...]

  • Page 20

    Telco and ISP Dial Scenarios and C on figu rations Large-Scale POPs DNC-324 Cisco IOS Dial Services Config uration Guide: Network Services interface Serial0:23 no ip address encapsulation ppp isdn incoming-voice modem dialer rotary-group 0 dialer-group 1 no fair-queue no cdp enable ! interface Serial1:23 no ip address encapsulation ppp isdn incomin[...]

  • Page 21

    Telco and ISP Dial Scenarios and Configurations Large-Scale POPs DNC-325 Cisco IOS Dial Services Confi guration Guide: Network Servic es transport input telnet rlogin ! end Cisco AS5200 Access Server #3 The follo wing e xample runs on the Cisco AS52 00 access server la beled #3 in Figure 56: ! version 11.2 service timestamps debug datetime msec ser[...]

  • Page 22

    Telco and ISP Dial Scenarios and C on figu rations Large-Scale POPs DNC-326 Cisco IOS Dial Services Config uration Guide: Network Services interface Serial1 no ip address shutdown ! interface Serial0:23 no ip address encapsulation ppp isdn incoming-voice modem dialer rotary-group 0 dialer-group 1 no fair-queue no cdp enable ! interface Serial1:23 n[...]

  • Page 23

    Telco and ISP Dial Scenarios and Configurations Large-Scale POPs DNC-327 Cisco IOS Dial Services Confi guration Guide: Network Servic es line aux 0 login authentication console line vty 0 4 login authentication vty transport input telnet rlogin ! end Cisco 7206 as Offload Server The follo wing e xample runs on the Cisco 7206 router sho wn in Figure[...]

  • Page 24

    Telco and ISP Dial Scenarios and C on figu rations Large-Scale POPs DNC-328 Cisco IOS Dial Services Config uration Guide: Network Services interface Ethernet2/2 no ip address shutdown ! interface Ethernet2/3 no ip address shutdown ! interface Virtual-Template1 ip unnumbered Loopback0 no ip mroute-cache peer default ip address pool dialin_pool ppp a[...]

  • Page 25

    Telco and ISP Dial Scenarios and Configurations Large-Scale POPs DNC-329 Cisco IOS Dial Services Confi guration Guide: Network Servic es User Setup for PPP The follo wing example sho ws a user setup for PPP . Th e user’ s IP address comes from the configured default IP add ress that is set up on the interface (whi c h could be a spec ific default[...]

  • Page 26

    Telco and ISP Dial Scenarios and C on figu rations PPP Calls over X.25 Networks DNC-330 Cisco IOS Dial Services Config uration Guide: Network Services User Setup for SLIP and Static IP Address The follo wing example shows a user setup for SLIP and a static IP address that stays with the user across all connections. Make su re your routing is set up[...]

  • Page 27

    Telco and ISP Dial Scenarios and Configurations PPP Calls over X.25 Networks DNC-331 Cisco IOS Dial Services Confi guration Guide: Network Servic es Overview Many ci ties throughout the wo rld hav e large in sta lled bases of PCs interfacing w ith older modems, P ADs, and X.25 networks. These remote PCs or termin als di al in to P ADs and make X.25[...]

  • Page 28

    Telco and ISP Dial Scenarios and C on figu rations PPP Calls over X.25 Networks DNC-332 Cisco IOS Dial Services Config uration Guide: Network Services Protocol Translation Configuration Example In the follo w ing example, P A D callers that dial 4 085551234 recei ve a router prompt. P AD callers that dial 408555512340 1 start PPP and pick up an add[...]

  • Page 29

    Telco and ISP Dial Scenarios and Configurations PPP Calls over X.25 Networks DNC-333 Cisco IOS Dial Services Confi guration Guide: Network Servic es line con 0 login authentication console line aux 0 login authentication console line vty 0 150 login authentication vty transport input telnet rlogin ! end[...]

  • Page 30

    Telco and ISP Dial Scenarios and C on figu rations PPP Calls over X.25 Networks DNC-334 Cisco IOS Dial Services Config uration Guide: Network Services[...]