Specific customer VPN - how to restrict to host/port?
Hello
I have a PIX-515 performer 6.3.5 code using Firewall/VPN device. I have a lot from site to site and VPN client works well. However, I'm looking for a way to split tunnel to the port grannularity level.
for example, vpn profile Fabricant2, limit access to the 192.168.100.210 on port 80 and 81 only. Here is my config.
object-group service tcp tcp-80-81
Beach of port-object www 81
object-group network consultant-vpn2-dst
host of the object-Network 192.168.100.210
object-group network vpn-clientpool-2
network-object 192.168.101.64 255.255.255.224
!
access-list consultant-vpn2 permitted tcp object-group consultant-vpn2-dst object-group tcp-80-81 object-group vpn-clientpool-2
access-list no. - nat permitted tcp object-group consultant-vpn2-dst object-group tcp-80-81 object-group vpn-clientpool-2
!
192.168.101.64 - 192.168.101.95 pool2-vpn IP local pool
!
NAT (inside) - access list 0 no - nat
!
vpngroup address vpn-pool2 pool Fabricant2
vpngroup Fabricant2 by default-domain mydomain.com
vpngroup split Fabricant2 consultant-vpn2 tunnel
vpngroup idle time 1800 Fabricant2
Fabricant2 vpngroup password *.
This config works fine but when connecting, I see the split tunnel which passes on the IP level. I am able to ping or pass another type of traffic to the host, even if the ACL is extended and only port 80/81.
Is there a way to limit the VPN client to a specific port only?
One solution would be to...
1. remove the allowed sysopt connection ipsec
2. write access you want in your list of outside access.
No ipsec sysopt connection permit
outside_access_in tcp object-group allowed access list vpn-clientpool-2-object-group consultant-vpn2-dst eq 80
outside_access_in tcp object-group allowed access list vpn-clientpool-2-object-group consultant-vpn2-dst eq 81
Access-group outside_access_in in interface outside
Note: the actual acl may vary depending on what you already have. Also if you have other virtual private networks, these subnets access should be allowed since the removal of the sysopt command block access.
Tags: Cisco Security
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