Backup with VPN LAN-TO-LAN?

Unanswered Question
Apr 4th, 2008
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Hi,

I have 2 sites interconnected via Fiber ( 1km) which trunk 4 vlans, the both site are on the same subnet.

the fiber is connected on catalyst 3550 on the central site and the catalyst 2960 on the branch site.

i need to configure VPN IPSEC lan-To-LAN using ADSL connection between 2 sites to backup my fiber connection when its down.

please advice if you have a solution to backup my fiber connection with VPN TUNNEL?


THANKS FOR HELP


REGARDS,

Ha









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hdoramane Mon, 04/07/2008 - 07:31
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Hi,

if i use a router with ios adv.security which is configured my ipsec vpn and its connected to my switch.

how can i configure my vpn tunnel like a backup of my trunk fiber?


Thanks


Regards,

Hassan

husycisco Mon, 04/07/2008 - 10:39
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Hi Hassan,

As I know, a VPN connection can not act like/be/backup a trunk link. You can open up a question as "Backup trunk link over S2S VPN" in "Network Infrastructure" in "WAN Routing & Switching" section to make sure.

A workaround would be configuring Dynamic routing protocols with high costs, but that would not work if you have same VLANs at both sites.


Regards

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