question on VPN and vlan overlap on 2 remote sites.

Unanswered Question
Nov 4th, 2008
User Badges:

ok, so I have 2 cisco 3845.

Site A's public 216.24.230.2

Site A's private 10.10.10.0/24

Site A's host 10.10.10.200


Site B's public 216.24.238.40

Site B's private 10.10.10.0/24

Site B's host 10.10.10.100


Both sites have the same internal IP schema.


How can I make a VPN between the 2 sites, so that host in site a has full access to host on site B.


As you can see, i'm very newbie when it comes to VPN's.


Thanks in advance.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
pipsadmin Tue, 11/04/2008 - 11:57
User Badges:

but this is for same IP addresses on both sides... I don't have that issue. I simply want the VPN to pass traffic like if it was a bridge to the other site.


So that when I ping from site A to site B's host, it looks like it's local.


Is this at all possible?

pipsadmin Tue, 11/04/2008 - 12:10
User Badges:

is there a way to basicaly use the VPN to extend the broadcast domain to the other site? I dont have conflicting IP address, but I also cannot do NAT because of the applications being used and sone other dependencies...

Jon Marshall Tue, 11/04/2008 - 12:21
User Badges:
  • Super Blue, 32500 points or more
  • Hall of Fame,

    Founding Member

  • Cisco Designated VIP,

    2017 LAN, WAN

Nelson


Apologies for misunderstanding, you made it sound like an overlapping subnet issue.


L2TPv3 will allow you to extend a vlan across a L3 routed link but i think this is more complicated than just using the example i previously supplied -


http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gtl2tpv3.html


Jon

Actions

This Discussion