Cil, here is a working config from a 2611 router in my lab. interface Ethernet0/1 no ip address full-duplex ! interface Ethernet0/1.1 encapsulation dot1Q 121 ip address 122.1.1.1 255.255.255.0 ! interface Ethernet0/1.2 encapsulation dot1Q 122 ip address 122.1.2.1 255.255.255.0 ! interface Ethernet0/1.3 encapsulation dot1Q 123 ip address 122.1.3.1 255.255.255.0 ! interface Ethernet0/1.4 encapsulation dot1Q 124 ip address 122.1.4.1 255.255.255.0 !
on the switch side I have the switchport configured as a vlan tunnel, but in your situation I believe you want the switchport configured as a dot1q trunk. the IOS is 12.1.5T10, but yes you do need an image that support dot1q. not al images do. HTH Chuck -- TANSTAAFL "there ain't no such thing as a free lunch" ""Priscilla Oppenheimer"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > So, we started to implement the campus LAN design that I mentioned in > previous messages, but we can't seem to do VLAN trunking on the darn 2600 > router! > > When we do: > > int fa0/0 > no ip address > int fa0/0.1 > encapsulation dot1q 100 > > The router claims that the "encapsulation" is invalid input. > > When we tried to do the IP address first, it says: > > Configuring IP routing on a LAN subinterface is only allowed if that > subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q, > or ISL vLAN. > > (That makes it sound like VLAN trunking is supported!?) > > IOS version is 12.1(5). > > He's using the Firewall Feature Set (CBAC stuff) es evidenced by "ip > inspect" commands in his config. > > Does it not support VLAN trunking?? > > I've asked him to do "show flash" and "show version" so we can get more > info. What else should I ask for? THANKS > > Priscilla Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59851&t=59850 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
