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Special Forums IP Networking Linux bridge routing failing on Proxmox3.2/Debian7.0 Post 302913000 by OSSVirt on Wednesday 13th of August 2014 08:52:44 AM
Old 08-13-2014
Debian Linux bridge routing failing on Proxmox3.2/Debian7.0

I am having problems configuring bridged networking on Proxmox3.2/Debian7.0

I have 2 bridges - vmbr0 and vmbr1. I want to attach a gateway/firewall running in a virtual machine between the 2 and use it to connect out to the WAN through vmbr0.

I have removed the IP, mask and gateway from vmbr0 so that the firewall (monowall) can hold those itself.

Virtual machines running under Proxmox will connect to vmbr1 and access the gateway on the inward side on the 10.0.0.0/8 network.

When I switch this config over and reboot the server it does not respond to a ping, or the VPN. What am I doing wrong?

Thanks in advance for any help.

Here is my /etc/network/interfaces
Code:
iface lo inet loopback
 
auto eth0
iface eth0 inet manual
     post-up echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp

auto vmbr0
iface vmbr0 inet manual
    bridge_ports eth0
     bridge_stp off
     bridge_fd 0

auto vmbr1
    address 10.2.0.1
    netmask 255.0.0.0
    gateway 10.2.2.1
    bridge_ports none
     bridge_stp off
     bridge_fd 0

 

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IPSEC_TNCFG(8)                                                    [FIXME: manual]                                                   IPSEC_TNCFG(8)

NAME
ipsec_tncfg - manipulate KLIPS virtual interfaces SYNOPSIS
ipsec tncfg ipsec tncfg --create virtual ipsec tncfg --delete virtual ipsec tncfg --attach --virtual virtual --physical physical ipsec tncfg --detach --virtual virtual ipsec tncfg --clear ipsec tncfg --version ipsec tncfg --help OBSOLETE
Note that tncfg is only supported on the classic KLIPS stack. It is not supported on any other stack and will be completely removed in future versions. A replacement command still needs to be designed DESCRIPTION
The historical use of tncfg is to attach/detach IPsec virtual interfaces (e.g. ipsec0) to/from physical interfaces (e.g. eth0) through which packets will be forwarded once processed by KLIPS. The modern use of tncfg is to create and delete virtual interfaces known as mastXXX. mast stands for Mooring and XXX. The form with no additional arguments lists the contents of /proc/net/ipsec_tncfg. The format of /proc/net/ipsec_tncfg is discussed in ipsec_tncfg(5). The --attach form attaches the virtual interface to the physical one. The --detach form detaches the virtual interface from whichever physical interface it is attached to. The --clear form clears all the virtual interfaces from whichever physical interfaces they were attached to. Virtual interfaces typically have names like ipsec0 or mast0 while physical interfaces typically have names like eth0 or ppp0. EXAMPLES
ipsec tncfg --create mast12 creates the mast12 device. ipsec tncfg --create ipsec4 creates an ipsec4 device, but does not attach it. ipsec tncfg --attach --virtual ipsec0 --physical eth0 attaches the ipsec0 virtual device to the eth0 physical device. FILES
/proc/net/ipsec_tncfg, /usr/local/bin/ipsec SEE ALSO
ipsec(8), ipsec_manual(8), ipsec_eroute(8), ipsec_spi(8), ipsec_spigrp(8), ipsec_klipsdebug(8), ipsec_tncfg(5) HISTORY
Written for the Linux FreeS/WAN project <http://www.freeswan.org/> by Richard Guy Briggs. [FIXME: source] 10/06/2010 IPSEC_TNCFG(8)
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