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Philip Prindeville de8b88ce17 firewall: add rule for traceroute support Running your firewall's "wan" zone in REJECT zone (1) exposes the presence of the router, (2) depending on the sophistication of fingerprinting tools might identify the OS and release running on the firewall which then identifies known vulnerabilities with it and (3) perhaps most importantly of all, your firewall can be used in a DDoS reflection attack with spoofed traffic generating ICMP Unreachables or TCP RST's to overwhelm a victim or saturate his link. This rule, when enabled, allows traceroute to work even when the default input policy of the firewall for the wan zone has been set to DROP. Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>	4 years ago
..
files	firewall: add rule for traceroute support	4 years ago
Makefile	firewall: update to latest Git HEAD	5 years ago

Philip Prindeville de8b88ce17 firewall: add rule for traceroute support

Running your firewall's "wan" zone in REJECT zone (1) exposes the
presence of the router, (2) depending on the sophistication of
fingerprinting tools might identify the OS and release running on
the firewall which then identifies known vulnerabilities with it
and (3) perhaps most importantly of all, your firewall can be
used in a DDoS reflection attack with spoofed traffic generating
ICMP Unreachables or TCP RST's to overwhelm a victim or saturate
his link.

This rule, when enabled, allows traceroute to work even when the
default input policy of the firewall for the wan zone has been
set to DROP.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

files

firewall: add rule for traceroute support

Makefile

firewall: update to latest Git HEAD