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Cisco site to site VPN solution with two ISPs at two routers

Ciscosianer
Level 1
Level 1

Hello forum,

I would like to create a Cisco site to site VPN solution with two ISPs at two routers.

the basic configuration of the VPN settings is clear to me.
What settings should I configure so that when the line primere offline this is the seconding particular line is addressed.

Router1 primers SDSL ISP 1 via this line to build the tunnel.
Router2 Secunder ADSL ISP 2 are only adopted when the Prieme not available.

If the line is again on the SDSL is the Priemere be used again.

how can I solve most, I have to talk HSRP here?
I need a simple explanation Thank you for your help.

3 Replies 3

The probably best solution is to build your VPNs with Virtual Tunnel Interfaces (VTIs) and run a routing-protocol through the tunnel. The path-selection is done through routing-protocol costs and the failover to the secondary tunnel is automatically done based on your routing. Internally you could use HSRP or run the routing-protocol also with your internal L3-switch.

Hi Karsten,

I thank you for your help,

presumably you mean this setting.

http://www.cisco.com/en/US/technologies/tk583/tk372/technologies_white_paper0900aecd8029d629_ps6635_Products_White_Paper.html

I need these two routers in one location as above described by me.
How should the configuration look like.

I can not find any scenario on the Cisco side

Further need is the configuration for the failover event.
Thank you.

 

 

You can use the config in the mentioned Whitepaper. Just add another router withe the external interface connected to the second ISP and the internal interface connected to the same LAN. Then run HSRP between the two internal interfaces.