Ubuntu Manpage: routestopped - The Shorewall6 file that governs what traffic flows through the firewall

NAME

       routestopped - The Shorewall6 file that governs what traffic flows through the firewall
       while it is in 'stopped' state.

SYNOPSIS

       /etc/shorewall6/routestopped

DESCRIPTION

This file is deprecated in favor of the shorewall6-stoppedrules[1](5) file.

This file is used to define the hosts that are accessible when the firewall is stopped or
is being stopped. When shorewall6-shell is being used, the file also determines those
hosts that are accessible when the firewall is in the process of being [re]started.

The columns in the file are as follows (where the column name is followed by a different
name in parentheses, the different name is used in the alternate specification syntax).

INTERFACE - interface
Interface through which host(s) communicate with the firewall

HOST(S) - [-|address[,address]...]
Optional comma-separated list of IP/subnet addresses. If your kernel and ip6tables
include iprange match support, IP address ranges are also allowed.

If left empty or supplied as "-", 0.0.0.0/0 is assumed.

OPTIONS - [-|option[,option]...]
An optional comma-separated list of options. The order of the options is not important
but the list can contain no embedded white-space. The currently-supported options are:

routeback
Set up a rule to ACCEPT traffic from these hosts back to themselves. Beginning
with Shorewall 4.4.9, this option is automatically set if routeback is specified
in shorewall6-interfaces[2] (5) or if the rules compiler detects that the
interface is a bridge.

source
Allow traffic from these hosts to ANY destination. Without this option or the dest
option, only traffic from this host to other listed hosts (and the firewall) is
allowed. If source is specified then routeback is redundant.

dest
Allow traffic to these hosts from ANY source. Without this option or the source
option, only traffic from this host to other listed hosts (and the firewall) is
allowed. If dest is specified then routeback is redundant.

critical
Allow traffic between the firewall and these hosts throughout '[re]start', 'stop'
and 'clear'. Specifying critical on one or more entries will cause your firewall
to be "totally open" for a brief window during each of those operations. Examples
of where you might want to use this are:

· 'Ping' nodes with heartbeat.

· LDAP server(s) if you use LDAP Authentication

· NFS Server if you have an NFS-mounted root filesystem.

Note
The source and dest options work best when used in conjunction with
ADMINISABSENTMINDED=Yes in shorewall6.conf[3](5).

EXAMPLE

       Example 1:

                       #INTERFACE      HOST(S)                 OPTIONS
                       eth2            2002:ce7c:92b4::/64
                       eth0            2002:ce7c:92b4:1::/64
                       br0             -                       routeback
                       eth3            -                       source

FILES

       /etc/shorewall6/routestopped

NOTES