# This is for testing purposes. IPTABLES=/bin/true IP6TABLES=/bin/true # Uncomment below to actually activate firewall #IPTABLES=/sbin/iptables #IP6TABLES=/sbin/ip6tables # Don't forget to rename this file to 'options'! # I'm trying to make this config as simple as possible. Comment out # options you don't want to use, uncomment them to use them. # Do we want NAT/Conntrack/Forward features? NAT=1 CONNTRACK=1 FORWARD=1 # Blocking incoming connections by default? BLOCKINCOMING=1 # Clamp MSS, useful on DSL/VPN links # Space separated list of interfaces to apply this on #CLAMPMSS="ppp0 eth0" # Do we run a LAN DHCP server? #LANDHCPSERVER=1 # Internal Interface #INTINF=ppp+ # Port forwardings, requires NAT PORTFW=$BASEDIR/port-forwards # TCP/UDP/Protocol to allow TCPPORTS="20 21 22 53 80 113 123 443" UDPPORTS="53" # common protocols to allow include ipsec, gre, and ipv6 ALLOWEDPROTO="41 47 50 51" # IPs that are allowed to bypass firewall TRUSTEDIP="127.0.0.1" # Don't track these IPs, useful in some occasions. Don't # use otherwise. DONTTRACK="127.0.0.1" # IP range(s) to forward ROUTING=$BASEDIR/ipv4-routing # IP ranges(s) to NAT using SNAT. NATRANGE="192.168.1.0/24" # External IP and interface for SNAT NATEXTIP="172.16.1.1" NATEXTIF="eth0" # IP Ranges to block all traffic incoming/outgoing BLOCKEDIP=$BASEDIR/blocked # Strip ECN off of packets - helps with blackholes # Either individual IPs or 0.0.0.0/0 STRIPECN="0.0.0.0/0" # IPv6 related features. Commenting out IPV6 variable disables ALL # IPv6 related items IPV6=1 # IPv6 Forwarding #IPV6FORWARD=1 # Default block all incoming ipv6 connections? IPV6BLOCKINCOMING=1 # Special case for routers that have ipv6 clients behind them. # Useful if clients do not have proper ipv6 firewalls. #IPV6ROUTEDCLIENTBLOCK=1 # Clamp MSS, useful on DSL/VPN links # Space separated list of interfaces to apply this on # it may be used eventually. #CLAMPMSSIPV6="he-ipv6" # Interface IPv6 comes in on (either tunnel or real network interface) #IPV6INT=he-ipv6 # LAN interface for IPv6 #IPV6LAN=eth1 # Trusted IPv6 ranges IPV6TRUSTED="::1" # Allowed incoming IPv6 ports (for now, use $TCPPORTS and $UDPPORTS to # have same for both ipv4 and ipv6) IPV6TCP=$TCPPORTS IPV6UDP=$UDPPORTS # IPv6 range to forward #IPV6FORWARDRANGE=""