08-15-2025 04:37 PM
Just want to see if anyone else had this problem. Our ION9200 has two 10gig connections in a port channel to a Cisco Nexus 9K. VPC on the nexus side. We've sub-interfaced to support three VLANs. Vlan1 is the native, then we have vlan3 and VLAN 100. When in this configuration, vlan1 can't get onto the WAN. No flows show up but we can ping the dgwy which is the ION. VLANs 3 and VLAN100 don't have this problem.
The fix we came up with is to tag all VLANs. And set the nexus trunk to use an unused VLAN as the native VLAN. When all VLAN are tagged it seems to work.
Posting to see if anyone else has seen this and has a different fix or maybe the post will help someone else.
I do have a ticket and if I get any more interesting information, I'll post it.
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