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GW with multiple external IP's

Hi, mates.

We're having a HA GW with 1 ISP and several external IP's (3 on interfaces and 2 are used with local arp). We want to add another ISP with the same configuration. I'm wondering if there will be an troubles with routing? Will the return traffic for the new IP's  in this case be routed through the new interface or will it go through default (old one).

Thanks in advance!

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2 Replies
Vladimir
Jade

Re: GW with multiple external IP's

0 Kudos
Juan_Lobera
Nickel

Re: GW with multiple external IP's

You have to configure ISP Redundancy in load sharing mode and you wont have trouble returning traffic through the link where it came. Its done that way per design.

There are many configurations you can do also based on ISP redundancy.

Advanced configuration options for ISP Redundancy