cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
477
Views
4
Helpful
1
Replies

Multiple ISP Interfaces (dynamic Ip)

Hi,

I have more than one link from different ISPs (IP Address assigned dynamically), on a 2811 router.

Each interface has different cost so if one interface is going down the cheapest interface must take it over. If the cheapest interface is back online the router must drop the current connection and route to the cheapest ISP connection.

I have tried Policy routing (with ping) only the main problem is how to do this with a wan interface that has a dynamic ip address.

And are there any other protocols that can do the job?

Many thanks in advance,

Gerard

1 REPLY 1

pkhatri
Advisor
Advisor

Hi,

You can still do this with policy-based routing. Simply use the 'set interface' command instead of the 'set ip next-hop' command. That way, you only need to specify the interface name, and not it's IP address. If the interface goes down, it is no longer treated as a valid next-hop and the next interface will then be considered.

Paresh

PS> Pls do remember to rate posts.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: