One question,
I need to connect RB750 ether2,3,4,5 on the same switch while ether1 is configured such as gateway and it’s connected to a DSL router.
I believe that the ethernet’s interfaces are isolated on a RB750 if I don’t change the port switching, but I remember once when I tried to connect two ethernet of a RB433 on the same switch and this had created instability on the LAN that does not run anything. This problem could I find even with the RB750?
cetalfio
One other thing though not essential for this problem is that each ethernets has different address:
ether2: 192.168.88.1/30
ether3: 192.168.89.1/30
ether4: 192.168.90.1/30
ether5: 192.168.91.1/30
I use 2 ethernet ports to connect to the same switch, one doing ipv4 and the other ipv6… No problems so far.
I don’t see why your setup wouldn’t work from the router’s point of view, as long as there are no overlapping IP ranges.
On the other hand, switches use MAC addresses to manage their switching tables. So seeing the same MAC on multiple ports could be a problem for the switch. Here VLANs would help…
Wouldn’t it be easier to assign multiple IPs to the same interface?
Sure the problem that I had found on the RB433 was just due to a duplication of MAC address in fact the two ethernets were on the same ethernet bridge, in this scenario instead, all ethernets have specific addresses and on different classes so I should not have any problems, thank you for your help,
cetalfio