Hello all,
I'm new to OPNsense and still learning a lot, two things that took me a while to figure out and I couldn't find a lot of information about are these Firewall and NAT Network aliases (if there is, apologies and just let me know where to find it)
I'm using OPNsense with a dynamic routing protocol. I'm running OSPF between my Layer3 switch and OPNsense. Because of this, the LAN connection is just a transit network and all my endpoint VLANs live behind my Layer3 switch.
What I noticed is that OPNsense doesn't like me using these network aliases in my scenario. It all started working after I changed the firewall rules and added a custom Outbound NAT rule from "Network Alias" to "any".
Couple questions:
I expect this is because OPNsense only treats the directly connected subnet as the Network alias?
Any way to include advertised networks in those aliases, or should I just create custom aliases for this and start using those for everything?
Thanks!
Wesley
In my understanding, "LAN net" refers to the subnet that the LAN interface is on. You can examine these aliases under Firewall -> Diagnostics -> Aliases
I'm not aware of any way to have a dynamic alias based on a routing protocol. That concept feels a bit wrong - allowing firewall operation to be influenced some external source...........