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vpn between 2 sites via hub site

carl_townshend
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Hi all

I have 3 sites, site A , B and C

Site A needs to route to site C via site B, Site A has a vpn tunnel to site B, and Site C hasa VPN tunnel to site B, Effectivley B is the Hub,

will the traffic just route through site B ok   ? do i need to configure anything special on this ?

cheers

Carl

1 Reply 1

Hi Carl,

siteA = subnetA; siteB=subnetB...

you need to modify your proxy ACLs: (crypto map outside_map 10 match address ACL_NAME)

On siteA right now vpn = subnet A to subnet B; add subnet A to subnet C

On siteB right now vpn1 = subnet B to subnet A and vpn2 = subnet B to subnet C

add the following:

vpn1 add subnet C to subnet A

vpn2 add subnet A to subnet C

global config add same-security-interface permit intra-interface

On siteC right now vpn = subnet C to subnet B; add subnet subnet C to subnet A

Also fix the NATs and interface ACLs accordingly...

Hope that helps,

Patrick

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