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Community Member

Help Needed DDR on second call Number

Hi Ciscoer,

Here's the config of current router dial to main site,

interface f0/0

ip add 192.168.13.254 255.255.255.0

int s0/0

backup delay 1 120

backup interface dialer1

ip address 192.168.253.9 255.255.255.0

encap frame-relay

frame-relay map ip 192.168.253.1 80 broadcast

interface BRI0/0

encap ppp

dialer rotary-group 1

isdn switch0type basic-net3

int async65

encap ppp

dialer in-band

dialer rotary-group 2

async mode dedicated

int dialer1

ip add 192.168.252.6 255.255.255.252

encap ppp

dialer in-band

dialer map snapshot 1 name MainRouter broadcast 1111111

dialer map ip 192.168.252.5 name MainRouter broadcast 1111111

dialer hold-queue 10

dialer load-threshole 10 outbound

dialer-group 1

snapshot client 15 360 suppress-statechane-update dialer

ppp authentication chap

ppp multilink

int dialer2

ip address 192.168.251.6 255.255.255.252

encap ppp

dialer in-band

dialer map snapshot 1 name SecondRouter modem-script broadcast 2222222

dialer map ip 192.168.251.5 name SecondRouter modem-script default broadcast 2222222

dialer hold-queue 10

dialer-group 1

snapshot client 5 360 suppress-statechange-update dialer

ppp authentication chap

router igrp 1

net 192.168.13.0

net 192.168.251.0

net 192.168.252.0

net 192.168.253.0

ip route 192.168.10.0 255.255.255.0 192.168.252.5 150

ip route 192.168.10.0 255.255.255.0 192.168.253.5 200

access-list 101 deny igrp any any

access-list 101 permit ip any any

dialer-list 1 protocol ip list 101

-----------------------------------------------------

Questions:

1. Can I have the dialer2 dial to diffrent phone no and diffrent subnet using "dialer map" (So I have other RAS server located to backup site-192.168.12.0)

2. If so, the ip route 192.168.12.0 255.255.255.0 192.168.251.5 201; will the command be interesting to place the second call?

So, my setup will Frame-relay, ISDN, DIAL #1, DIAL #2

Thank's in Advanced,

Best Regards,

HATO

2 REPLIES
Silver

Re: Help Needed DDR on second call Number

Q1. Can I have the dialer2 dial to diffrent phone no and diffrent subnet using "dialer map" (So I have other RAS server located to backup site-192.168.12.0)

A1. Yes, but... You also will need a mechanism that will detect when the alternate dialer is required. This is not supported by standard Cisco configurations, but can be done with a little trickery.

Q2. If so, the ip route 192.168.12.0 255.255.255.0 192.168.251.5 201; will the command be interesting to place the second call?

A2. No. As far as the 2nd dialer is concerned, the first dialer is always available (it will either be up or up(spoofing)).

Q3. So, my setup will Frame-relay, ISDN, DIAL #1, DIAL #2

A3. You can do this, but you'll need to start over using either dialer watch or BGP driven DDR to do the job. This also requires using an easily filtered routing protocol such as EIGRP or RIPv2 between the two sites so the calling router can detect which links are up and available.

See the white paper "Using BGP to Trigger Multiple Levels of Dial Backup on Cisco Routers" on my web site (or Chapter 5 - "Advanced Dial Backup" of my book High Availability Networking with Cisco) for more on the techniques required to do the job.

Good luck and have fun!

Vincent C Jones

www.networkingunlimited.com

Community Member

Re: Help Needed DDR on second call Number

Thank You for your quick response

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