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Forum Discussion

PG0581's avatar
PG0581
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Nov 05, 2020

iRule to load balance FDQNs

I'm wondering if it's possible to have an iRule load balance (round-robin) between FQDNs. Here's the idea: You would have a virtual server with no pool and use an iRule to redirect to a couple FQD...
application delivery
BIG-IP
iRules
PG0581's avatar
PG0581
Icon for Cirrus rankCirrus
Nov 06, 2020

It is a weird requirement 🙂 So the pool members this traffic is being sent to is setup on a proxy server:

1.1.1.1 is configured with a vhost and would proxy you to 3.3.3.3:443

2.2.2.2 is configured with a vhost and would proxy you to 4.4.4.4:443

We wanted to use 1.1.1.1 and 2.2.2.2 as the pool members, but, the way the user had this set up was if you navigated to the IP of the server for example:

https://1.1.1.1
https://2.2.2.2

This would take you to the default webserver and not to the hosts we wanted to connect to; being 3.3.3.3 and 4.4.4.4. The way they had this configured was to reach it by FQDN and also wanted it load balanced.

Hopefully I explained that so it makes some sense 🙂 and thanks for your solution. They wound up changing some things on the server side so we thankfully don't need to use an iRule.