I have a 2610 router with followingh config'
ip address 22.214.171.124 255.255.255.248
ip unnumbered ethernet0/0
dialer idle-timeout 900
ip route 0.0.0.0 0.0.0.0 bri0/0 --> L1
ip route 0.0.0.0 0.0.0.0 126.96.36.199 -- L2
For L1 above, I experienced that this default route will make the bri0/0 always up the link will never down the link even with "dialer idle-timeout 900". How to solve this ?
L1 and L2 above, why L2 is still needed as L1 already routes every thing to bri0/0?
How to use bri0/0 routing to backup another router (DDR) in term of routing ?