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Community Member

GRE through an ipsec tunnel between a router and a concentrator

Hi,

Can one create a GRE tunnel from an internal router, through a 3005/15 connected to either an ipsec router or hardware client, into another router at a remote site.

Router <---GRE---3005/15 <----IPSEC--->H/W client or IPSEC router ---GRE--->Router

This would allow for dynamic routing updates between central and remote sites. I know it can be done with two routers, but was wondering if the 3005/15 could handle it?

Thanks,

Billy

2 REPLIES
Community Member

Re: GRE through an ipsec tunnel between a router and a concentra

Hi,

we have this:

GRE

-->IPsec------------------------------------>IPsec----------------------->GRE

router------------------------------------->VPN3005----------------->router

the GREoIPsec tunnel is used to manage the isdn bckup link with the hello protocol of OSPF and a floating static.

bye,

Graz

Cisco Employee

Re: GRE through an ipsec tunnel between a router and a concentra

You could form a gre tunnel between routers behind a VPN 3000 and a router doing IPSec lan to lan.

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