As stated, if you have only allowed VLAN 1 and 100 ove the trunk port, these are the only frames that will be allowed to travel over the trunk? Are you able to paste in your switch config into your next reply? Cheers, Jimmy 0 Helpful Reply Jonathancert_2 Level 1 In response to...
switchport private-vlan mapping switchport protected switchport trunk switchport voice vlan show cable-diagnostics tdr To display the test results for the Time Domain Reflectometry (TDR) cable diagnostics, use the showcable-diagnosticstdrcommand in privileged EXEC ...
If so this would explain why these do not need to be allowed on the trunk link because they are routed onto another vlan then sent across the link. Couple of things to think about but only suggestions. 1) If you are routing the data and voice vlans off the access switch then instead ...