iSCSI VLAN Question

[spetrillo]

Hello all,

I have a VLAN dedicated to iSCSI storage traffic. I have setup the interface just like I would with any other interface. I have no rules assigned for this interface. When I try to ping from one device to another, both in the storage vlan, they do not respond. Do I just need an ICMP rule to allow this to happen? I am trying to troubleshoot some issues.

On a separate but related topic I would like to change the MTU on the storage VLAN to 9000. I assume that every path between any two devices must have their MTUs changed to make this happen correct?

Thanks,
Steve

[clarknova]

If both devices are on the same vlan then they should be able to communicate at layer 2 with no firewall in the path. Check your switch configs.

For trouble-free operation, all the hosts on the LAN should have the same MTU and all the connected switch ports should have an equal or larger MTU.

[Patrick M. Hausen]

Also for a VLAN dedicated strictly to storage without any traffic to another VLAN or the Internet - why configure on OPNsense at all?

If have this exact configuration, VLAN 8 for iSCSI and NFS between TrueNAS and Proxmox - no VLAN 8 on OPNsense. What for?

[spetrillo]

I was using OPNsense for DHCP, but you are correct. This is dedicated for storage traffic between my NAS and my client machines. I can just statically assign the IPs and call it a day.