C1300 - Tagged VLAN traffic not forwarding on trunk to/from Firewall
Setup: Cisco C1300-12XT-2X, firmware 4.1.9.85 (latest). Interface te1/0/13 is an 802.1Q trunk to a WatchGuard Firebox M690 (WG physical interface 10, also configured as a tagged trunk).Trunk config on te1/0/13:interface TenGigabitEthernet1/0/13switch...