I believe the reason is when you create sub interface you are specifying dot1q tag for vlan 6 but on 3750 switch the port is configured as an access port which will send the vlan 6 traffic without any tag and cat 6k subinterface will drop the traffic.
So try to configure the 3750 switchport as trunk port and allow vlan 6 only or on the subinterface dot1q command specify native keyword after vlan number something like this
Thats the hard way to do it , just create your layer 2 vlans on each side then create the corresponding layer 3 SVI's . Then create your trunk link between the 2 switches. Don't really get your addressing your vlan 6 addresses on each side are in different subnets so I don't know how it could work at all . on the 6500 it is in the 161.2.6 and on the 3750 it is 164.72.6 .
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.