I am trying to set up bonded T1 to failover to DSL. Below is my set up.
An ASA 5505 is connected to inside network and also conencts to f0/0 on a 2811. 2811 has dual T1 cord with two T1 bonded using MLPPP. Multilink interface is my promary route ti Internet.
2811's F 0/1 is conencted to a DSL router. When I shut down multilink, trying to get to 22.214.171.124 works fine from 2811 as does a number of other IP address I tried (ping and trace-route). With multilink down, sourcing pings to 126.96.36.199 from router works. However, when a user from LAN tries to connect to Internet, it fails.
There is an internal DNS server they use.
What could be problem?
Thanks for suggestions in advance.