Two adsl connection on router

[danilo.padula]

Hi Guys,

I have a router with two adsl connection, one of them is working fine. The another one I cannot see any packet going to the ISP. The interface atm is up, there is no reset, error, etc but the router doesn't try to connect to ISP, I see this when I enable debug ppp authentication.

The two links are from the same service provider, so I have swap the links to be sure that both are working. I had no issues with links. The configuration are the same as you can see below, just the username and password are different.

Any idea where is the issue?

interface atm0
 no shut
 no ip address
 pvc 8/35
  encapsulation aal5mux ppp dialer
  dialer pool-member 1

interface dialer1
 ip address negotiated
 no ip directed-broadcast
 ip nat outside
 encapsulation ppp
 dialer pool 1
 ppp chap hostname userA@isp.com
 ppp chap password 123A
 ppp pap sent-username userA@isp.com password 123A

interface atm1
 no shut
 no ip address
 pvc 8/35
  encapsulation aal5mux ppp dialer
  dialer pool-member 2

interface dialer1
 ip address negotiated
 no ip directed-broadcast
 ip nat outside
 encapsulation ppp
 dialer pool 2
 ppp chap hostname userB@isp.com
 ppp chap password 123B
 ppp pap sent-username userB@isp.com password 123B

Cheers

[Vasilii Mikhailovskii]

Hello.

You use ATM0 - dialer1 and ATM1 - dialer2 (is it dialer2?)

You might need to put "dialer persistent) under the interfaces to keep them statically up.

[danilo.padula]

Hi Vasilii,

Thank you for your reply. Actually the IOS was the issue, that one that I was using doesn't support the configs that I need. After the upgrade it started to work straightaway.

Tks