Comparison

	Halon 3.1	pfSense 2.0.1	m0n0wall 1.33	Vyatta 6.4	Mikrotik 5.20	Smoothwall 3.0sp3
Platform	OpenBSD 5.3/current	FreeBSD 8.1	FreeBSD 6.4	Linux 3.0.23	Linux 2.6	Linux 2.6
Firewall	PF (2013)	PF (2007)	ipfilter	iptables	iptables	iptables
Architecture	Intel 32/64-bit	Intel 32/64-bit	Intel 32-bit	Intel 32-bit	Intel 32-bit	Intel 32/64-bit
Management
Config format	Clear-text	XML	XML	Clear-text	Semi-clear-text	Binary (floppy)
Restore/rollback without reboot	Yes	No	No	No	No	No
Test/confirm without reboot	Yes	No	No	No	No	No
Revision-managed config	Yes (Subversion)	Yes (files)	No	Yes (file rotation)	No	No
Commit multiple changes	Yes	No	No	Yes	No	No
CLI config editor	Yes	No	No	Yes	Yes	No
API	SOAP	No	No	REST	Custom	No
VPN server
L2TP	Yes	Yes	No	Yes	Yes	No
PPTP NAT passthrough	Yes	No	No	Yes (iptables)	Yes (iptables)	No
DNS suffix in PPTP/L2TP	Yes	No	No	No	No	No
Client routes in PPTP/L2TP	Yes	No	No	No	No	No
Filter-ID for RADIUS	Yes	No	No	No	Yes	No
Routing
MPLS	Yes (PE/VPN)	No	No	No	Yes	No
Built-in OSPF/BGP	Yes (OpenBGP/OSPFD)	No	No	Yes (Quagga)	Yes	No
BGP TCP-MD5	Yes	No	No	Yes	Yes	No
IPv6
Firewall rules	Dual-stack	Rule duplication	Rule duplication	Rule duplication	Rule duplication	No
Layer-3 translation (eg. NAT64)	Yes	No	No	No	No	No
Others
Layer 7 load balancing	Yes	No	No	No	?	No