LinuxQuestions.org
Visit Jeremy's Blog.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Networking
User Name
Password
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

Notices


Reply
  Search this Thread
Old 01-28-2016, 08:47 AM   #1
Retro
LQ Newbie
 
Registered: Jan 2016
Location: Munich, Germany
Distribution: Debian
Posts: 2

Rep: Reputation: Disabled
Question VPN correctly used by ping, but NOT by iceweasel


Hello,
my setup is Debian 8.3.0 i386, xfce, openvpn, iceweasel.
Without VPN eth0 is my only interface, everything fine.
ping 8.8.8.8 reproducibly around 20 msec.
With VPN started I have eth0 and tun0 interfaces.
I expect tun0 to be the default/system interface.
ping 8.8.8.8 reproducibly around 100 msec
ping -I eth0 8.8.8.8 is still 20 msec
My conclusion: networking correctly switched to tun0.
Using iceweasel however I find that eth0 is used, not tun0,
employing a test surface on the VPN provider side.
This is true regardless of the iceweasel setting
- use system networking settings or
- auto detect networking setting
What can I do to instruct iceweasel to truly use the system
setting ?

Thanks and regards
Retro
 
Old 02-08-2016, 11:29 AM   #2
eSelix
Senior Member
 
Registered: Oct 2009
Location: Wroclaw, Poland
Distribution: Arch, Kubuntu
Posts: 1,281

Rep: Reputation: 320Reputation: 320Reputation: 320Reputation: 320
Check your routes, for example by "ip route", there is information for system (applications) where to send data.
 
Old 02-08-2016, 06:03 PM   #3
mabo1
Member
 
Registered: Jul 2015
Location: Nanjing, China
Distribution: Debian
Posts: 62

Rep: Reputation: Disabled
Does it help if you restart the browser after connecting the VPN. This is what I usually do when switching in/out of my VPN.

Also, I check my IP address after switching with this site - icanhazip.com - just to make sure the address has changed.
 
Old 02-08-2016, 09:25 PM   #4
jefro
Moderator
 
Registered: Mar 2008
Posts: 22,029

Rep: Reputation: 3632Reputation: 3632Reputation: 3632Reputation: 3632Reputation: 3632Reputation: 3632Reputation: 3632Reputation: 3632Reputation: 3632Reputation: 3632Reputation: 3632
Hello and welcome to LQ.

Might as well ask a few questions. Do you have IPv6? Did you configure some setting to break VPN? That is in order to use some ip outside of vpn.
 
Old 02-16-2016, 06:02 AM   #5
Retro
LQ Newbie
 
Registered: Jan 2016
Location: Munich, Germany
Distribution: Debian
Posts: 2

Original Poster
Rep: Reputation: Disabled
postponed

Dear all,
thanks for your suggestions, I have noted them down. Unfortunately I have been sidestepped to a more
important activity, so I will come back later and apply your suggestions at that time.

Thanks again
Retro
 
  


Reply


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
PPTP VPN Ping Problem rcrosoer Linux - Networking 8 10-02-2012 04:16 AM
VPN is up but ping uses defaultroute saavik Linux - Security 9 12-12-2008 01:40 AM
sharing VPN access with lan + after vpn connected unable to ping lan/public ip xxx_anuj_xxx Linux - Networking 1 03-14-2008 02:50 AM
I can only ping linux server over vpn bearcatzack Linux - Networking 0 01-28-2004 02:05 PM
Can't Ping Router from VPN Shoki Linux - Networking 7 05-30-2001 05:39 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 10:24 PM.

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