Подскажите имя файла для прошивки Cisco 2611XM для работы с тунелями dot1q и создания vpn тунеля с шифрованием 3des

команда sh ver

Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.2(46a), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Wed 11-Jul-07 20:22 by pwade
Image text-base: 0x8000808C, data-base: 0x811226B8
ROM: System Bootstrap, Version 12.2(7r) [cmong 7r], RELEASE SOFTWARE (fc1)
SocBank uptime is 8 weeks, 19 hours, 50 minutes
System returned to ROM by reload
System restarted at 18:37:56 MSK Tue Aug 12 2008
System image file is "flash:c2600-is-mz.122-46a.bin"
cisco 2611XM (MPC860P) processor (revision 0x100) with 93184K/5120K bytes of memory.
Processor board ID JAE071608F1 (768310683)
M860 processor: part number 5, mask 2
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
16 terminal line(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Configuration register is 0x3922

Забыл добавить, есть прошивка c2600-ik9s-mz.122-40a она подходит для данного?
Зарание спасибо.