Thu, 18 Dec 2014 17:01:36 +0100
Allow inverse neighbour discovery solicitation (141) / advertisement (142)
# /etc/mbse-firewall/conf.d/eth0-input.conf # # This table is ; separated. From the data in the fields ip(6)tables commands # are created by the main program. The filename of this file is # <iface>-[forward|input|output|postrouting|prerouting].conf and from this name # the initial part of the command is created. # # The first field is a 4 or 6 and defines if this is a IPv4 or IPv6 rule. # # The second field is tha -t table type. Values are nat, mangle ... or empty # for the default filter type. # # The 3rd field is the protocol, tcp, udp, igmp, raw etc. # # The 4th field is the source address or source network. Valid notations # are 10.126.150.2 10.1.1.0/24 2001:1af8:feb8:7e96::2 # 2001:1af8:feb8:7e96::2/64 or 0/0 for any. # # The 5th field is the source port or ports. Ports may be command separated # or ranges or a combination of that. See man iptables for the syntax. # # The 6th field is the destination address. # # The 7th field is the destination port or ports # # The 8th field is the action, can be any valid action like: # DROP # ACCEPT # REJECT --reject-with tcp-reset # # The 9th field is special tests, for example: # -m state --state NEW # -m hashlimit --hashlimit 5/second --hashlimit-burst 10 --hashlimit-mode srcip --hashlimit-name torrent # -m connlimit \! --connlimit-above 3 -m hashlimit --hashlimit 1/second --hashlimit-burst 2 --hashlimit-mode srcip --hashlimit-name openvpn # -m connlimit --connlimit-above 35 # If you want, write several conditions in the same field. # Maximum connections per source IP 4;;;;;;;DROP;-m connlimit --connlimit-above 35 # Allow SSH 4;;tcp;;;10.1.1.5;ssh;ACCEPT;-m state --state NEW 6;;tcp;;;2001:1af8:dead:beef::5;ssh;ACCEPT;-m state --state NEW # Allow CUPS 4;;tcp;10.1.1.0/24;631;10.1.1.255;631;ACCEPT; 4;;udp;10.1.1.0/24;631;10.1.1.255;631;ACCEPT; # Allow Samba 4;;udp;10.1.1.0/24;138;10.1.1.255;138;ACCEPT; 4;;udp;10.1.1.0/24;137;10.1.1.255;137;ACCEPT; # Rate limited web 4;;tcp;;;10.1.1.5;80,443;ACCEPT;-m state --state NEW -m hashlimit --hashlimit 15/second --hashlimit-burst 25 --hashlimit-name http-server 6;;tcp;;;2001:1af8:dead:beef::5;http,https;ACCEPT;-m state --state NEW -m hashlimit --hashlimit 15/second --hashlimit-burst 25 --hashlimit-name http-server # DHCP 4;;udp;;67;255.255.255.255;68;ACCEPT; 4;;udp;;68;255.255.255.255;67;ACCEPT;