I have a 2610 router and I am attempting to enable DOT1Q on eth0/0.1 for router-on-a-stick configuration.
My sh ver is as follows:
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M), Version 12.2(8)T5, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Fri 21-Jun-02 08:50 by ccai
Image text-base: 0x80008074, data-base: 0x80A2BD40
ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Router uptime is 39 minutes
System returned to ROM by reload
System image file is "flash:c2600-i-mz.122-8.T5.bin"
cisco 2610 (MPC860) processor (revision 0x203) with 28672K/4096K bytes of memory.
Processor board ID JAD042108TF (1440777694)
M860 processor: part number 0, mask 49
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102
Now the problem is I can not enter the encapsulation command as you can see here:
Enter configuration commands, one per line. End with CNTL/Z.
% Invalid input detected at '^' marker.
Any reason for this? I thought IOS 12.2 should have dot1q capability.
you're right as this document does.
But you need to make sure that by using the cisco navigator.
As far as I see you should use c2600-is-mz.122-4.T.bin IOS that is IP-PLUS feature set.Kindly check the ios you want for sure!
Edit : Jon and Glen are absolutely right. I didn't see your replies.
Hopes this helps
Also, keep in mind that typically trunking can't be configured on 10Mbps interfaces it needs to be at least a fastethernet interface.
You can do 802.1q on a 10Mbps interface on a 2610 router with the right IOS. See attached link for more details.
As other indicated, you need IP Plus for dot1q but I'm afraid you won't be able to upgrade unless you upgrade your flash and memory.
8MB isn't enough for that image, you need 16MB flash and at least 48MB DRAM.