I have a user is from our hr department and is being house with the purchasing dept. On the Cisco switch(3750), I configured the port that user's PC is connected to, to be on his vlan - vlan105, and everyone else is on vlan110. This department where he's at is across the street from the main office, and the building connects to the main office via wireless bridges (Cisco 1410). The problem I am having with is that user's PC cannot ping his gateway of his vlan - 10.100.105.1, which is back at the core switch (Cisco 6506). Yet if I do an ip scan from the PC, it can see all the devices on his vlan and can ping those devices, but not the gateway. From the core switch, I can sometimes ping his PC - 10.100.105.20. I have connected another PC to his port, to see if its not the NIC on the user's PC, but I get the same results. Everyone that is on the 110 vlans, has no problems
are the wireless bridges capable to carry 802.1Q frames?
yes they are.
check with sh ip arp on C6500 what MAC address (if one) is associated to that PC IP address
compare it with PC NIC MAC address are they the same?
Yes the MAC address associated is the same as the NIC MAC.
also more important question, regardless of gateway ping results, is that PC capable to talk to devices in other IP subnets or not?
I forgot to mention, sometimes the PC is able to communicate to the gateway, and it is able to to talk to other devices in other subnets. When it does not communcate to the gateway, it can only communicate with the devices on the 105 vlan.
I have also taken a laptop and connected it to the port which the PC is connected, and I get the same results.
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