Hello Community!
I have a problem with a 450G (4.11) with a Bridged VLAN Config.
Interfaces:
ether1 (MTU 1500)
ether1.mgnt (VLAN Interface ID 11) (MTU 1500)
ether2 (MTU 1500)
ether2.mgnt (VLAN Interface ID 11) (MTU 1500)
Bridges:
bridge_mgnt (MTU 1500) -> Ports ether1.mgnt, ether2.mgnt
bridge_untrust (MTU 1500) -> Ports ether1, ether2
IP-Adresses:
10.30.1.12/24 on interface bridge_mgnt
91.135.180.12/27 interface ether1
when bridge_untrust ist deactivated
I can ping from my firewall, which is connected to ether1, from the VLAN11 to 10.30.1.12
I can also ping to 91.135.180.12 via ether1 (without vlan)
when I activate bridge_untrust
I can ping to 91.135.180.12
But I can't ping 10.30.1.12 any more. The Packet-Sniffer shows that even no ARP Request is answered, when I ping from the Router to the gateway 10.30.1.254
Do I have problems with the MTU when I bridge Untagged and Tagged Interfaces on the same ethernet ports?
Thank for your help.
Florian