[c-nsp] VPN Tunnel and PBR

Ahmad Cheikh Moussa acm at netuse.de
Thu Mar 29 09:03:14 EST 2007


Hi!

I have a problem with a ezvpn config.
I have a 876 router with some vlans.

The config should look like this:

                 LAN-D
       Internet  /
         |      VPN
         |     /
        Router
         |
      /  |  \
 LAN-A  LAN-B LAN-C

The router establish the tunnel via ezvpn remote
feature. I want that every traffic, which comes from
LAN-B and LAN-C directly to LAN-D. The rest directly
to the internet.

I've configured PBR and found out that this no work,
because my nex hop, is a IP address, which is not
in the routing table, but it is a IP which are reachable
through the tunnel. The tunnel use split-tunneling and
works without any problem, if I try to reach one of
a IP in LAN-D.

After a while I found  out that there is a feature
virtuall-access for ezvpn. This feature generates routing
entries for every network, which is in the split-tunneling
list and so my PBR work. The other problem is now, that
evrything else doesn't work now. LAN-A can not go to
the internet and I can not reach LAN via the internet.

Here a cut of the ezvpn config;

crypto ipsec client ezvpn VPN_DHELLRT
 connect auto
 group DROPPOINT-GRP key *****
 mode network-extension
 peer 1.1.1.1
 username droppoint01 password ******
 xauth userid mode local


interface Virtual-Template1 type tunnel
 no ip address
 tunnel mode ipsec ipv4


interface Vlan105
 LAN B
 ip policy route-map PBR-MAP

route-map PBR-MAP permit 10
 match ip address PBR
 set ip next-hop "LAN-D"



My question is, do I have forgot something to configure
for the virtual-access ?

Is there another way to solve this problem ?

Kind regards,
 Ahmad




-- 
Ahmad Cheikh-Moussa
ISP-Technik

NetUSE AG
Dr.-Hell-Straße, 24107 Kiel, Germany
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