RAS ISDN Dial Up on Demand !!!

[fkseow]

--begin ciscomoderator note-- The following post has been edited to remove potentially confidential information. Please refrain from posting confidential information on the site to reduce security risks to your network. -- end ciscomoderator note --

Please verify and commend on the following configs; site_A can receive dial in and dial on demand from and to the two sites, site_B and site_C;

For site_A (2620);

hostname router1

!

enable password 7 --moderator edit--

!

username --moderator edit-- password 7 --moderator edit----->

username --moderator edit-- password 7 --moderator edit-----> Pls verify.

ip subnet-zero

!

!

!

isdn switch-type basic-net3

!

!

!

interface Loopback0

no ip address

shutdown

!

interface FastEthernet0/0

description Fastethernet0/0

ip address 10.31.7.3 255.255.255.128

duplex auto

speed auto

!

interface BRI0/0

no ip address

encapsulation ppp

dialer map ip 10.10.68.3 name router2 broadcast 47231934 --->Pls verify

dialer rotary-group 1

isdn switch-type basic-net3

no cdp enable

!

interface BRI0/1

no ip address

encapsulation ppp

dialer map ip 10.10.68.2 name router3 broadcast 93321626 --->Pls veri

dialer rotary-group 1

isdn switch-type basic-net3

isdn T310 4000

no cdp enable

!

interface Dialer0

no ip address

no cdp enable

!

interface Dialer1

ip address 10.10.68.1 255.255.255.0

encapsulation ppp

dialer-group 1

ppp authentication chap callin

ppp multilink

!

ip classless

ip route 10.31.32.0 255.255.255.0 10.10.68.3 --->

ip route 10.31.34.0 255.255.255.0 10.10.68.2 ---> Pls verify

no ip http server

ip pim bidir-enable

!

dialer-list 1 protocol ip permit

For site_B or site_C (1720);

hostname router2

!

enable password 7 --moderator edit--

!

username router1 password 7 --moderator edit----->Pls verify

!

!

!

!

memory-size iomem 25

ip subnet-zero

!

isdn switch-type basic-net3

!

!

!

!

interface Loopback0

no ip address

shutdown

!

interface BRI0

ip address 10.10.68.3 255.255.255.0

encapsulation ppp

dialer idle-timeout 60

dialer map ip 10.10.68.1 name router1 broadcast 87321624 --->Pls verify

dialer load-threshold 80 either

dialer-group 1

dialer rotary-group 1

isdn switch-type basic-net3

ppp authentication chap

ppp multilink

!

interface FastEthernet0

ip address 10.31.32.52 255.255.255.128

speed auto

!

interface Dialer1

ip unnumbered bri0

encapsulation ppp

dialer-group 1

ppp authentication chap callin

ppp multilink

!

ip classless

ip route 10.10.68.0 255.255.255.0 BRI0 --->

ip route 10.31.0.0 255.255.0.0 10.10.68.1 ---> Pls verify

no ip http server

[hbaerten]

You are mixing legacy DDR with Dialer interfaces which is not very nice (I would be surprised if this worked at all).

Instead I'd go for something like this (for router A, the other 2 are similar):

username ROUTER-B password xxxx

username ROUTER-C password xxxx

interface bri0/0

no ip address

encapsulation ppp

dialer pool-member 1

ppp authentication chap

!

interface bri0/1

no ip address

encapsulation ppp

dialer pool-member 1

ppp authentication chap

!

interface Dialer1

description *** SITE B ***

ip unnumbered FastEthernet0/0

encapsulation ppp

dialer pool 1

dialer remote-name ROUTER-B

dialer string 0123456789

dialer-group 1

no cdp enable

!

interface Dialer2

description *** SITE C ***

ip unnumbered FastEthernet0/0

encapsulation ppp

dialer pool 1

dialer remote-name ROUTER-C

dialer string 0123456789

dialer-group 1

no cdp enable

!

ip route 10.31.32.0 255.255.255.0 Dialer1

ip route 10.31.34.0 255.255.255.0 Dialer2

!

dialer-list 1 protocol ip permit

This way, the dial specifications are separated from the physical BRI interfaces so you could even add more dialers (of course only 2 of them could be active at the same time).

Let me know if this works for you or if you need more help!

regards,

Herbert

[hbaerten]

You can also check this Cisco URLs:

Configuring ISDN DDR with Dialer Profiles

http://www.cisco.com/warp/public/793/access_dial/ddr_dialer_profile.html

Configuring and Troubleshooting Dialer Profiles

http://www.cisco.com/warp/public/129/23.html

[fkseow]

Hi Mr. Herbert, what about my site_B and site_C configs as listed, please verify any mistake. Thanks for your guidance.

[hbaerten]

For routers B and C the config is very similar to that of routerA;

i.e something like this:

username ROUTER-A password xxxx

interface bri0

no ip address

encapsulation ppp

dialer pool-member 1

ppp authentication chap

!

interface Dialer1

description *** SITE A ***

ip unnumbered Ethernet0

encapsulation ppp

dialer pool 1

dialer remote-name ROUTER-A

dialer string 0123456789

dialer-group 1

no cdp enable

ip route n.n.n.n m.m.m.m dialer1

dailer-list 1 protocol ip permit

Of course this is just a basic configuration, you can customize many things but for that I refer to the URLs I gave in a previous post.

Good luck,

Herbert