Comment on Weird (to me) networking issue - can you help?
talkingpumpkin@lemmy.world 4 months agoSo the request goes trough but the replies are discarded ? That could actually be it!
I think there was an option to allow martian packets… I’ll search it and give it a try. Thanks!
teslasaur@lemmy.world 4 months ago
It has to do with link priority on the server. You’d imagine that a server that receives a packet that has a return address on the same subnet as it self logically would use that interface instead.
A similar thing happens in switches. For example if you have two vlans on a switch and both vlans have an ip assigned, connect a computer to one of the vlans. You will only be able to reach the switch on the non-routed connection. Even if you also are allowed to reach the second vlan through a router/Firewall.