[PVE-User] Iptables question

[Shain Miley]

Hello,

I setup some iptables rules on the proxmox host node, so far they seem to be working as expected.  I thought that these rules would also apply to the VM's as well, however it seems that the traffic is not being filtered when it comes to the vm's that I create.

Here is the script that I am using on the hostnode:


#!/bin/sh

# iptables script generated 2011-05-10
# http://www.mista.nu/iptables

IPT="/sbin/iptables"

# Flush old rules, old custom tables
$IPT --flush
$IPT --delete-chain

# Set default policies for all three default chains
$IPT -P INPUT DROP
$IPT -P FORWARD ACCEPT
$IPT -P OUTPUT ACCEPT

# Enable free use of loopback interfaces
$IPT -A INPUT -i lo -j ACCEPT
$IPT -A OUTPUT -o lo -j ACCEPT

# Enable free use of internal interface ETH0
$IPT -A INPUT -i vmbr0 -j ACCEPT
$IPT -A OUTPUT -o vmbro -j ACCEPT


# Accept inbound TCP packets
$IPT -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPT -A INPUT -p tcp --dport 22 -m state --state NEW -s 209.123.35.0/22 -j ACCEPT
$IPT -A INPUT -p tcp --dport 80 -m state --state NEW -s 209.123.35.0/22 -j ACCEPT
$IPT -A INPUT -p tcp --dport 443 -m state --state NEW -s 209.123.35.0/22 -j ACCEPT

# Accept inbound ICMP messages
$IPT -A INPUT -p ICMP --icmp-type 8 -s 0.0.0.0/0 -j ACCEPT


All vm's are using venet interfaces.


One thing that I have not tried is to re-run this script after I create the vm...other then that I am not sure what needs to be done.

Does anyone have any suggestions?

Thanks in advance,

Shain