I'm trying to get some redundancy with the connection for this ISPConfig server.
I'm not sure what is the best way to do it. I don't have AS numbers.
Is it possible to do it without AS numbers? Can I just use two NICs with static IPs?
Aside setting up the second IP in the ISPConfig, what should I setup?
I consider adding the second address in the DNS setup, e.g.:
22.214.171.124 (ISP1 on eth1)
126.96.36.199 (ISP2 on eth2)
The server has only one gateway set, through ISP1 on eth1.
Would it respond correctly to requests coming on eth2 ?
What's the easiest way of doing this?
I should mentoin that I also can request multiple IPs from both ISPs and use a multihomed router in front of the server, but without AS numbers, I'm not sure if this is a good idea (I'm thinking of setting up pfsense without NAT).
I would, actually, be content with modifying manually some settings, as long as I don't have to fiddle with DNS, as it would mean to wait for propagation, which is exactly what I'm trying to overcome.
Please shed some light on the correct path.