[PVE-User] Unable to port forward to containers from externalIPs (but can access containers from the Host Node)

ano-639d60e3 at enterto.com ano-639d60e3 at enterto.com
Sat May 23 08:43:08 CEST 2009

Thanks Dietmar.  I appreciate the info.  I dug deeper and got port forwarding up
and running.  

I'd be happy to write this up for the wiki but need to know for sure which
module(s) in particular was preventing port forwarding from working and why.  Or
perhaps they all are either pre-installed with ProxMox or otherwise unnecessary.  

Also, the depth of the wiki article will depend on how quickly the ProxMox
firewall is going to be available. Why bother to go into detail about iptables if
it is going to be replaced?

The problem was caused by one of the following modprobe statements. 

# core netfilter module
/sbin/modprobe ip_tables

# the stateful connection tracking module
/sbin/modprobe ip_conntrack

# The ftp nat module is required for non-PASV ftp support
/sbin/modprobe ip_nat_ftp

# the module for full ftp connection tracking
/sbin/modprobe ip_conntrack_ftp

# the module for full irc connection tracking
/sbin/modprobe ip_conntrack_irc

Thanks for your help and, of course, for ProxMox.

On Fri 05/22/09  1:26 AM , "Dietmar Maurer"  sent:
> > -----Original Message-----
> > From: pve-user-bounces at pve.proxmox.com [mailto:pve-user-> bounc
> es at pve.proxmox.com] On Behalf Of ano-
> 639d60e3 at enterto.com> Sent: Donnerstag, 21. Mai 2009 17:56
> > To: pve-
> user at pve.proxmox.com> Subject: Re: [PVE-User] Unable to port forward to
> containers from> externalIPs (but can access containers from the Host
> Node)> 
> > 
> > Thanks, Jelle.  I was unfamiliar with RFC 3330.  I only
> knew about RFC> 1918.
> > 
> > Does anyone know if ProxMox is designed to use this IP
> or if it is> unique to my
> > hosting provider's implementation of
> ProxMox?
> This IP is used by OpenVZ with venet networking. VMs use this IP as
> gateway address.
> - Dietmar
> The market for Flamingo dancers isn
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