backup a dialer with another dialer

[daniele.gallarato]

I have one ISP connection through a dialer interface.

I need to configure another dialer to another ISP, that the router use if the first dialer doesn't connect.

I can create two dialer:

int dialer 1

dialer string xxxxxxx

int dialer 2

dialer string yyyyyyy

but how can I instruct the router to use second if first fail?

Thanks

[thisisshanky]

How does each dialer interface get their ip address ? Is it dynamically negotiated from each provider ?? All you need to do is configure only one dialer interface with the following commands. If xxxxxx is not available or busy it will switch to yyyyyy.

dialer string xxxxxxx

dialer string yyyyyyy

[daniele.gallarato]

they get ip address both dinamically

so I can use two different string in the same interface

how can I use different username and password?

thanks

[jduffek]

if you have to use different user/pass you would probably have to use two seperate dialer profiles, in which case you would need the feature that CSCds88143 provies. I think it went into 12.3(4)T or so. Here is some documentation on it:

http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps5207/products_feature_guide09186a00801d1e95.html

Josh