Hi Prasicilla See the min IOS version required to support what i feel is 12.2(8). It doesnot require enterprise image i think.Ip PLUS will work without any encryption features and eneterprise features Example for naming convention sh ver C2600-ios-M C2600 platform ios is feature sets like I defines ip subset,O defines firewall,s defines Source route switch (SNMP, IP, BRIDGING, SRB).like this depending uponn feature sets. M indicates execution path Trunking(802.1 q) was introduced in 12.2 versions only that too on 2600,2695,3620,3640 and 3660 these platforms. this is what i thinkPriscilla 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
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