Two WAN addresses and strange connection failing problem
My setup is as follows.
Two LAN cards, both getting IP with DHCP trough cable modem, like this:
1_WAN_DEFAULT 1000baseT <full-duplex> xx.152.87.5x Workstations
1_WAN_PUBLIC 1000baseT <full-duplex> xx.157.212.1xx Servers
Everything works fine, except now and then, the public network connection to servers I am hosting in WAN_Public fails for 30-45 minutes.
When this happens, I can see in firewall logs blocking messages like this:
Mar 2 13:26:07 1_WAN_DEFAULT Deny all on WAN_Default (1614537997) 1xx.124.33.4x:23897 xx.157.212.1xx:443
Like for some reason the traffic that usually goes to the 1_WAN_PUBLIC is trying to go in trough 1_WAN_DEFAULT. After around 45 minutes the problem goes away.
This only happend to the Inboud traffic (servers not visible to public net), if I use the servers myself from the server itself it can connect to public net and seems to be working just fine.
What could be causing this?
Update 3.3.2021: I noticed that if I will manually do DHCP release and DHCP renew on Pfsense , the traffic will immediately start to work, even though the IP stays the same.
Running on 2.5 version of Pfsense.