r/Proxmox•
bixmiester

Cannot communicate between interfaces

Question

Hey everyone,

I just added a 2.5 NIC to my server, and I was hoping to allow all communication between my default LAN and the new interface.

I have the following rules configured on the 2 interfaces, and I'm at a loss as to why I can't communicate with a device on the "25LAN". The device is getting an IP from DHCP but I can't ping or access the web console on TrueNAS.

https://preview.redd.it/myme0h81rvif1.png?width=1752&format=png&auto=webp&s=8d1ed3ec76f922a4eb569de072e7e426196e5526

https://preview.redd.it/c6qebus4rvif1.png?width=1700&format=png&auto=webp&s=d930348af34c9284826e2ca3cea49cfee130a086

I know my rules on LAN are probably excessive, but I have been scared to change them and screw up my main network lol

I feel like I'm missing something obvious but not sure what it is.

Posted Aug 14, 2025, 12:34 AM UTC

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