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Community Member

Cisco c1751 to c831 VPN

Hello !

I wanted to ask You if it's possible to make vpn connection between Cisco router model C1751 on one side and on the other side router C831.

If the answer is Yes could You also point me to some configuration guides and examples.

Thanks

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: Cisco c1751 to c831 VPN

You'll need to pick a version that has either

ADVANCED SECURITY or IPSEC 3DES

Here is a link for 12.3 software

http://www.cisco.com/cgi-bin/Software/Iosplanner/Planner-tool/iosplanner.cgi?get_crypto=&data_from=&hardware_name=1751&software_name=&release_name=&majorRel=12.3&state=:HW&type=

Make sure you meet the memory requirements.

Hope that helps!

5 REPLIES
Cisco Employee

Re: Cisco c1751 to c831 VPN

Hello sudermaniak,

The answer is yes. You'll need to be running an image that supports crypto. Here is a basic link on configuring a typical IPSec connection with private addressing on both sides.

http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a008009448f.shtml

You can find many other IPSec configuration examples here

http://www.cisco.com/en/US/tech/tk583/tk372/tech_configuration_examples_list.html

Hope that helps! If so, please rate.

Thanks

Community Member

Re: Cisco c1751 to c831 VPN

Hello !

Thanks for Your reply.

I think these examples are very good, I just need to check it in reality, so don't worry I'll rate.

How do I check if my C1751 supports crypto ?

I know that it uses IOS ver. 12.2(15)T9.

Cisco Employee

Re: Cisco c1751 to c831 VPN

Type the following

Router# config t

Router(config)#crypto ?

If you get output, then the router supports crypto. If the router complains that the command is not understood, then it doesn't.

Hope that helps!

Community Member

Re: Cisco c1751 to c831 VPN

Yes it helps but my c1751 doesn't support crypto :(

Do You know maybe which IOS do I have to obtain to make my c1751 support crypto ?

Cisco Employee

Re: Cisco c1751 to c831 VPN

You'll need to pick a version that has either

ADVANCED SECURITY or IPSEC 3DES

Here is a link for 12.3 software

http://www.cisco.com/cgi-bin/Software/Iosplanner/Planner-tool/iosplanner.cgi?get_crypto=&data_from=&hardware_name=1751&software_name=&release_name=&majorRel=12.3&state=:HW&type=

Make sure you meet the memory requirements.

Hope that helps!

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