Welcome to the most active Linux Forum on the web.
Go Back > Forums > Linux Forums > Linux - Networking
User Name
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.


  Search this Thread
Old 10-03-2003, 11:22 AM   #1
LQ Newbie
Registered: Oct 2003
Posts: 2

Rep: Reputation: 0
Question Block VPN access with IPChains


I'm currently using an IPChains based firewall on my LAN. Its basically used as an internet access server, where you only get past the firewall once your authenticated. I am currently forwarding all local IP's to a login page, once they are authenticated their IP is then added to the firewall giving them full access to the internet. The only problem I am experiencing is that some users are able to use VPN without being authenticated. However the rest of the VPN users are blocked, as with other services, from getting through the firewall, which is the preferred scenario.

Do different VPN clients use different ports or methods to get thru a firewall? If so how do I completely restrict all VPN access?

Thanks in advance for your help


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
access the block website by certain IP space_beyond Linux - Security 1 06-03-2005 01:33 AM
ipchains ? Unable to access internet ... dns error ! mystique98ls Linux - Newbie 5 09-17-2004 10:06 AM
Block VPN access with IPChains ssukumar Linux - Newbie 1 10-03-2003 01:00 PM
VPN through IPchains firewall snowdog12 Linux - Networking 1 04-26-2003 07:06 PM
ipchains & VPN connection jmelgin Linux - Security 1 10-20-2001 04:30 PM > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 11:47 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration