No Encapsulation on C2621

I am trying to setup either ISL or 802.1Q but cannot find the image I need. I tried c2600-is-mz.123-26.bin, c2600-i-mz.123-26.bin and c2600-j1s3-mz.123-26.bin.

I am running the following:

Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M), Version 12.3(3g), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Thu 20-May-04 20:57 by kellythw
Image text-base: 0x80008098, data-base: 0x80C999C0

ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

NS-CR2621-NY01 uptime is 1 hour, 17 minutes
System returned to ROM by reload
System image file is "flash:c2600-i-mz.123-3g.bin"

cisco 2621 (MPC860) processor (revision 0x200) with 56320K/9216K bytes of memory
.
Processor board ID JAD0518047R (722937158)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

Any help would be greatly appreciated.
JimNirvAsked:
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JFrederick29Connect With a Mentor Commented:
Yeah, because you only have 16MB of flash.  You meet the RAM requirements (64MB) but not the flash requirements.  You'll need to upgrade the flash on the router to support that image.
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JFrederick29Connect With a Mentor Commented:
You need to run the IP PLUS feature set so c2600-is-mz.123-26.bin should work for you.

You are trying something similar to the following?

conf t
int fa0/0.10
encapsulation dot1q 10
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JimNirvAuthor Commented:
I have tried that one, but it will not load and I have to revert to the current image in ROM monitor mode.
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JimNirvAuthor Commented:
Ah, ok. That makes sense, will another 16 MB of flash do the trick or do I need more?
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JFrederick29Commented:
32MB is the required amount of Flash to support that image and probably the max that router supports.
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JFrederick29Commented:
Take a look at this doc.  Looks like you'll also need to get a new boot ROM for the router.

http://www.cisco.com/en/US/docs/routers/access/2600/hardware/installation/notes/2600mem.html#wp93177
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JimNirvAuthor Commented:
Thanks for the information everyone, I will try upgrading.
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JFrederick29Commented:
Sure thing.  You may want to evaluate the cost of the flash memory and boot ROM chip versus buy a 2621XM router off eBay :)
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