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ipsec tunnel with dynamic ip address (DDNS)

ofir
Level 1
Level 1

Hi boys and girls

I'm having some trouble configuring 2 cisco routers (877) with ipsec vpn tunnel.

The 2 of them are linked to the internet with dynamic adsl's - their ip-addresses changes all the time...

when the configuration is based on ip addresses it's working ok, but when I'm trying to use hostname

with the DDNS feature, it's not coming up, I get a lot of errors...

I've searched google and various posts regarding that issue.

It's seems like it's possible to do a dynamic-ip to dynamic-ip ipsec tunnel, but I found zero manuals and configuration.

Is it possible ?? Can some 1 help me please ??

I've added the template that I'm using to configure the tunnel with ip addresses.

Thank you guys.

2 Replies 2

Marcin Latosiewicz
Cisco Employee
Cisco Employee

Hi,

Check this out.

It's proven to work for lots of people:

http://isamology.blogspot.com/2010/09/ios-lan-to-lan-with-two-dynamic-peers.html

Marcin

thank you for the advise, I'll try that and report later.