Question

Split tunneling

Asked by: wifiit

HI all,

Users who connect to our office via VPN can't access the internet. However when they disconnect from the VPN they can access the internet. We have a PIX 515e appliance and we are using the CISCO VPN client 4.6. I think its got something to do with split tunelling but I am not sure and I don't know how to chage this through the PDM.

Any help greatly appreciated

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Asked On
2009-07-30 at 06:13:47ID24612810
Tags

CISCO PIX 515E

Topics

Cisco PIX Firewall

,

Virtual Private Networking (VPN)

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: 3nerdsPosted on 2009-07-30 at 06:25:51ID: 24979522

You are probably correct that it is a split tunnel problem. You are going to need to add an acl telling it what traffic needs to be encrypted and when is ok to go to the internet. You will then need to add this acl to the VPN configuration.

Something like this:

access-list split-tunnel-acl permit ip x.x.x.x 255.255.255.0 y.y.y.y 255.250.255.0--> X is you internal subnet that you are gaining access to. Y is the subnet of your vpnpool

vpngroup vpn-group-name split-tunnel split-tunnel-acl

I can't offer help with the PDM it was very bad IMHO and to unstable to trust to use reliably.

Regards,

3nerds

 

by: PeteLongPosted on 2009-07-30 at 06:55:20ID: 24979829

>>I can't offer help with the PDM it was very bad IMHO

It looks bad now cause we are all used to ASDM <grin>

Yep it will be split tunneling - you dont say if the PIX is version 6(or ealier) or version 7 (or later)

As posted above if your version 7 then its set with an ACL and within the VPN group policy

**********For Version 7 PIX and ASA firewalls

group-policy VPNPolicy internal
group-policy VPNPolicy attributes
split-tunnel-policy tunnelspecified
 split-tunnel-network-list value Split_Tunnel
access-list SSL_Split_Tunnel standard permit 192.1.0.0 255.255.0.0

where 192.1.0.0 / 255.255.0.0 is the INTERNAL network

***********For version 6 PIX firewalls

access-list RemoteVPN_splitTunnelAcl permit ip 192.1.0.0 255.255.0.0 any  
vpngroup RemoteVPN split-tunnel RemoteVPN_splitTunnelAcl

where 192.1.0.0 / 255.255.0.0 is the INTERNAL network

 

by: 3nerdsPosted on 2009-07-30 at 07:00:32ID: 24979882

If it is PDM how could it be version 7.0 or newer?

ACL's should be specific "any" is bad or lazy you pick.

Regards,

3nerds

 

by: PeteLongPosted on 2009-07-30 at 07:05:54ID: 24979929

Nice one well spotted :) - and I prefer Lazy, - it fits my disenchated and windswept demeanor

 

by: 3nerdsPosted on 2009-07-30 at 07:31:20ID: 24980193

LOL!

A good sense of humor I like it.

3nerds

20120131-EE-VQP-002

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