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Should this work?

Objective:

Server1 with only 1 internal LAN interface is able to be accessed via domain name server1.company.com over either WAN1-IP2 or WAN2-IP2. Dynamic DNS client automatically updates Host record for server1.company.com if either WAN1 or WAN2 fails.

Assumptions:

Nameserver for server1.company.com is successfully functioning with Dynamic DNS (client: ddclient)

Setup:

WAN1 has 5 IP addresses (WAN1-IP1, WAN1-IP2, etc.)
WAN2 has 5 IP addresses (WAN2-IP1, WAN2-IP2, etc.)

ClearOS with WAN1 and WAN2.

CearOS with WAN1-IP1 as eth0 and WAN2-IP1 as eth1

Server1 with LocalIP1 as eth0 and LocalIP2 as eth0:0 (virtual)

1-to-1 NAT ClearOS.WAN1-IP2 -> LocalIP1
1-to-1 NAT ClearOS.WAN2-IP2 -> LocalIP2

SourceBasedRouting LocalIP1 -> eth0 (WAN1)
SourceBasedRouting LocalIP2 -> eth1 (WAN2)

Question:

If I setup ddclient on Server1, will it successfully report with WAN1-IP2 and WAN2-IP2 (depending on availability)? My worry is that it will show up as WAN1-IP1 and WAN2-IP1 since those are the default eth0 and eth1 ports on ClearOS.
Monday, September 22 2014, 02:29 PM
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