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New Member

VPN with 1750 router??

I have been reading alot of your posts trying to find something that might help me. I have two Cisco 1750 routers that are using a 56k line to connect a branch to the home office. I have Adsl at the home office with about 40 computers. The branch currently has 7 computers. Is it possible to configure the 1750 for a VPN. I am trying to configure the home office router first to test a VPN connection from my home to see if this is what I really want to do. Cisco is very new to me. Here is a show router command from the home office 1750:

Miller-Wapak>show version

Cisco Internetwork Operating System Software

IOS (tm) C1700 Software (C1700-SY7-M), Version 12.2(2)XJ, EARLY DEPLOYMENT RELEA


Miller-Wapak uptime is 1 week, 4 days, 3 hours, 4 minutes

System returned to ROM by power-on

System image file is "flash:c1700-sy7-mz.122-2.XJ.bin"

cisco 1750 (MPC860T) processor (revision 0x501) with 44237K/4915K bytes of memor


Processor board ID JAD042109Z7 (4146217603), with hardware revision 0000

MPC860T processor: part number 0, mask 32

Bridging software.

X.25 software, Version 3.0.0.

1 Ethernet/IEEE 802.3 interface(s)

1 FastEthernet/IEEE 802.3 interface(s)

1 Serial network interface(s)

WIC with 56k 4-wire CSU/DSU

32K bytes of non-volatile configuration memory.

16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102


Is a VPN module necessary? or can this be configured without one?

Cisco Employee

Re: VPN with 1750 router??

This line:

System image file is "flash:c1700-sy7-mz.122-2.XJ.bin"

shows the router code you're running does not have any encryption functions in it, so with this you cannot build a VPN. If you have a CCO ID then download this code:

and TFTP it onto the router. There's a sample config for building a tunnel here:

But first, as I said, you have to have DES or 3DES code on the router. Basically in the 2nd portion of the router filename (sy7 in your router currently) you need to see k8 or k9, this indicates the encryption feature set.

New Member

Re: VPN with 1750 router??

Ok, it took me this long to get a SMARTNet contract to be able to download this file....why does this have to be so difficult. I now have the file, but I still have the original question I posted before: Is a VPN module necessary to configure this router or can it be done without one?