acceptig VPN connections through a Cisco 3660 router

Posted on 2005-04-08
Last Modified: 2010-04-12

i have a cisco 3660 router and u need to setup a VPN service on it so that i can remoltly connect to that router/network.

i'm not sure whether i'll need a sepcial IOS image to be relaced on the router, or it is already supported on that 3660 plateform..

again all what i need is to remotly dial-in via VPN from the internet to that router to access that network.

here is the info u might need :
# sh ver
IOS (tm) 3600 Software (C3660-I-M), Version 12.2(24), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Wed 28-Apr-04 13:50 by kellmill
Image text-base: 0x60008940, data-base: 0x60A40000
ROM: System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1)

# sh flash
System flash directory:
File  Length   Name/status
  1   9180008  c3660-is-mz.121-2.T
  2   6370508  c3660-i-mz.122-24.bin
[15550644 bytes used, 17479496 available, 33030140 total]
32768K bytes of processor board System flash (Read/Write)

thank you
Question by:Spiderrr
    LVL 7

    Accepted Solution

    You'll need to upgrade your IOS -

    c3660-is-mz.121-2.T is straight IP IOS - no VPN
    c3660-i-mz.122-24.bin is IP PLUS - still no VPN

    You will need a VPN load - IP PLUS IPSEC 3DES would be able to do VPN from the router.

    Cisco part # S366CK9-12313


    Author Comment


    thank you very much ... but can u please give me the exact ios name i should upgrade to, beacuase i couldn't find any search results for that part # u gave on or

    thanks a lot.

    Author Comment

    sorry i found it in .... thanks a lot minmei

    Author Comment


    i've got this IOS image: c3660-js-mz.121-5.bin , and wondering if it will do the kob or not ..
    i rearched through the Cisco FN and found two features related to VPN:
    - VPN Tunnel Management
    - Virtual Private Dial-up Network (VPDN)
    - MPLS Virtual Private Networks (VPN)

    i coundn't get the ios you mentioned so i really hope that one mentioned above will work

    please advice..
    LVL 7

    Expert Comment

    j = enterprise
    s = plus
    still not ipsec or 3des

    Enterprise gives you older protocols (Appletalk, IBM protocols, etc.)

    You really need to get the smartnet contract on the 3660 - then you can download the lastest images.


    get a software upgrade package to the latest of the one you need (S366CK9-12xxx)


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