DDR with two modems via Aux Ports

[jchik]

I've got a problem when using the DDR between 2 modems via Aux port. The configuration for Async interface for two routers are listed below.

interface Async5 for Router A

ipaddress 192.168120.237 255.255.255.0

encapsulation ppp

async default routing

async mode dedicated

dialer in-band

dialer map ip 192.168.120.239 name RouterB modem-script Dialout 28057844

dialer-group 1

ppp authentication chap

interface Async1 for Router B

ipaddress 192.168120.239 255.255.255.0

encapsulation ppp

async default routing

async mode dedicated

dialer in-band

dialer map ip 192.168.120.237 name RouterA

dialer-group 1

ppp authentication chap

I can make a connection betwee two modems. However, the Asynce1 of Router B changes its state among UP, DOWN and RESET again and again.

Does someone tell me what's wrong in my settings?

Best regards,

Jacky Chik

[makchitale]

The layer1 modem connection seems to be comming UP how ever it must be failing on layer2 (PPP), make sure we have the username/ password configured correctly.

The following debugs will be useful:

debug dialer / debug chat /debug modem / debug ppp nego on both ends.

Thanks, Mak.