Introduction I use Linux as an Internet router. I use it with multiple rules (rather simple) using a very simple baseline configuration. The router has two main network interfaces – one facing the internal LAN, and one facing the external fibre connection, where it needs to use a specific VLAN, and then – use PPPoE…
Assume a server has two network interfaces as follows: eth0 : 192.168.0.1/24 eth1 : 192.168.10.1/24 Let’s assume these interfaces reside on the different VLANs. Lets assume they were connected incorrectly, in such a way that eth0 is connected to VLAN 10, which servers 192.168.10.0/24 and eth1 is connected to VLAN 2, which serves 192.168.0.0/24. You…
As far as routing goes, it is a very bad idea to place multiple network interfaces with IPs of a single network (subnet). The routing table, which decides which interface to route the data through, reads the table line by line, thus – all traffic goes through a single interface of the batch (-> of…
