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CentOS 5.1 veth and 2.6.18-53.1.4.el5.028stab053.4 [message #26330] Mon, 21 January 2008 17:22 Go to next message
swindmill is currently offline  swindmill
Messages: 57
Registered: April 2007
Member
I just upgraded a server from the previous released kernel to the new 2.6.18-53.1.4.el5.028stab053.4 and now samba inside a VE configured with a veth interface no longer functions.

I can ping to and from the server, DNS is working properly, but I can not do an nmblookup from inside the VE, nor access shares configured in samba on the VE.

I will revert back to the previous version and see if samba starts working properly again.

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Re: CentOS 5.1 veth and 2.6.18-53.1.4.el5.028stab053.4 [message #26331 is a reply to message #26330] Mon, 21 January 2008 20:30 Go to previous messageGo to next message
swindmill is currently offline  swindmill
Messages: 57
Registered: April 2007
Member
I'm not sure what the problem is now, but reverting back to the previous kernel didn't help.

Should I be able to ping -b broadcastip from within a VE configured with a veth interface? I cannot, and I thought this was one of the differences between veth and venet?

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Re: CentOS 5.1 veth and 2.6.18-53.1.4.el5.028stab053.4 [message #26334 is a reply to message #26331] Mon, 21 January 2008 21:14 Go to previous messageGo to next message
JimL is currently offline  JimL
Messages: 116
Registered: February 2007
Senior Member
swindmill wrote on Mon, 21 January 2008 15:30

I'm not sure what the problem is now, but reverting back to the previous kernel didn't help.

Should I be able to ping -b broadcastip from within a VE configured with a veth interface? I cannot, and I thought this was one of the differences between veth and venet?



I had the same problem. Somehow iptables got configured on.

If you want to run with a firewall, be sure the settings didn't change for you. If you don't:

chkconfig iptables off
/etc/init.d/iptables stop

and maybe

chkconfig ip6tables off
/etc/init.d/ip6tables stop

Jim

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Re: CentOS 5.1 veth and 2.6.18-53.1.4.el5.028stab053.4 [message #26341 is a reply to message #26334] Mon, 21 January 2008 22:04 Go to previous messageGo to next message
swindmill is currently offline  swindmill
Messages: 57
Registered: April 2007
Member
This is the first time I've had to setup an OpenVZ VE with a veth interface and even after verifying that iptables is stopped, I'm still not able to ping the broadcast address from within the VE.

Do I need to bridge my veth and eth0 interfaces in order to get this working properly?

Is it possible to ping broadcast from within the ve without a bridge present?

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Re: CentOS 5.1 veth and 2.6.18-53.1.4.el5.028stab053.4 [message #29941 is a reply to message #26341] Wed, 30 April 2008 18:13 Go to previous messageGo to next message
ersousa is currently offline  ersousa
Messages: 1
Registered: April 2008
Location: São Paulo, SP - Brasil
Junior Member
Hi swindmill,

I am with the same problem, but using debian etch.
Did you solves this?

Ed

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Re: CentOS 5.1 veth and 2.6.18-53.1.4.el5.028stab053.4 [message #29949 is a reply to message #29941] Thu, 01 May 2008 02:03 Go to previous message
swindmill is currently offline  swindmill
Messages: 57
Registered: April 2007
Member
Yes, my problem was caused by my veth interface not being bridged with my physical interface (eth0)

I created a bridge (br0) and added both eth0 and my veth interface to it and all is well.

[Updated on: Thu, 01 May 2008 02:04]

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