Priscilla Oppenheimer wrote: > > 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
Priscilla, If 'encap' isn't accepted on the main interface, your IOS most certainly doesn't support trunking and there isn't really any other info you need. You'll likely just need to upgrade to an IP Plus or Enterprise image. Or possibly a 12.2 image. Beware the memory requirements though. This is exactly what I went through last week. Once I loaded up an IP Plus image on a router with enough memory, 'encap' magically appeared as a valid input. Regards, Scott Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59859&t=59850 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
