ISDN backup with NAT issue

[Aaron D]

I have a 2 router configuration. The primary router is connected to MPLS and the LAN side is running HSRP. They have 2 LAN interfaces. One is public facing to services they need to access and another is connected with a crossover. We are attempting to NAT on backup and it isn't functioning. Is there any issues with NAT on a dialer interface we should know about?

What is the best practice when using NAT on a secondary ISDN backup router?

Thanks!

Ad

[Wilson Samuel]

Hi Ad,

Could you please send the concerned Configs from both the Routers, as with out looking at the configs its difficult to conclude anything.

Regards,

Wilson Samuel