forked from extern/shorewall_code
5a1b6dfeb3
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@1745 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
181 lines
6.4 KiB
Plaintext
Executable File
181 lines
6.4 KiB
Plaintext
Executable File
#
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# Shorewall 2.2 -- Sample Interface File For One Interface
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#
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# /etc/shorewall/interfaces
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#
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# You must add an entry in this file for each network interface on your
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# firewall system.
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#
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# Columns are:
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#
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# ZONE Zone for this interface. Must match the short name
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# of a zone defined in /etc/shorewall/zones.
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#
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# If the interface serves multiple zones that will be
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# defined in the /etc/shorewall/hosts file, you should
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# place "-" in this column.
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#
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# INTERFACE Name of interface. Each interface may be listed only
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# once in this file. You may NOT specify the name of
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# an alias (e.g., eth0:0) here; see
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# http://www.shorewall.net/FAQ.htm#faq18
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#
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# You may specify wildcards here. For example, if you
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# want to make a entry that applies to all PPP
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# interfaces, use 'ppp+'
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#
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# There is no need to define the loopback interface (lo)
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# in this file.
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#
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# BROADCAST The broadcast address for the subnetwork to which the
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# interface belongs. For P-T-P interfaces, this
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# column is left blank.If the interface has multiple
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# addresses on multiple subnets then list the broadcast
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# addresses as a comma-separated list.
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#
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# If you use the special value "detect", the firewall
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# will detect the broadcast address for you. If you
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# select this option, the interface must be up before
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# the firewall is started, you must have iproute
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# installed and the interface must only be associated
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# with a single subnet.
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#
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# If you don't want to give a value for this column but
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# you want to enter a value in the OPTIONS column, enter
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# "-" in this column.
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#
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# OPTIONS A comma-separated list of options including the
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# following:
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#
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# dhcp
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# Interface is managed by DHCP or used by
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# a DHCP server running on the firewall or
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# you have a static IP but are on a LAN
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# segment with lots of Laptop DHCP clients.
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# norfc1918
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# This interface should not receive
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# any packets whose source is in one
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# of the ranges reserved by RFC 1918
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# (i.e., private or "non-routable"
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# addresses. If packet mangling is
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# enabled in shorewall.conf, packets
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# whose destination addresses are
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# reserved by RFC 1918 are also rejected.
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# nobogons
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# This interface should not receive
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# any packets whose source is in one
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# of the ranges reserved by IANA (this
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# option does not cover those ranges
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# reserved by RFC 1918 -- see above).
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# routefilter
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# Turn on kernel route filtering for this
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# interface (anti-spoofing measure). This
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# option can also be enabled globally in
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# the /etc/shorewall/shorewall.conf file.
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# blacklist
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# Check packets arriving on this interface
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# against the /etc/shorewall/blacklist
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# file.
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# logmartians
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# Turn on kernel martian logging (logging
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# of packets with impossible source
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# addresses. It is suggested that if you
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# set routefilter on an interface that
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# you also set logmartians. This option
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# may also be enabled globally in the
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# /etc/shorewall/shorewall.conf file.
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# maclist
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# Connection requests from this interface
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# are compared against the contents of
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# /etc/shorewall/maclist. If this option
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# is specified, the interface must be
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# an ethernet NIC and must be up before
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# Shorewall is started.
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# tcpflags
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# Packets arriving on this interface are
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# checked for certain illegal combinations
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# of TCP flags. Packets found to have
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# such a combination of flags are handled
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# according to the setting of
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# TCP_FLAGS_DISPOSITION after having been
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# logged according to the setting of
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# TCP_FLAGS_LOG_LEVEL.
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# proxyarp
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# Sets /proc/sys/net/ipv4/conf/<interface>/proxy_arp.
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# Do NOT use this option if you are
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# employing Proxy ARP through entries in
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# /etc/shorewall/proxyarp. This option is
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# intended soley for use with Proxy ARP
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# sub-networking as described at:
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# http://www.tldp.org/HOWTO/mini/Proxy-ARP-Subnet
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# newnotsyn
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# TCP packets that don't have the SYN flag set and
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# which are not part of an established connection
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# will be accepted from this interface, even if
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# NEWNOTSYN=No has been specified in
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# /etc/shorewall/shorewall.conf. In other
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# words, packets coming in on this interface
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# are processed as if NEWNOTSYN=Yes had been
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# specified in /etc/shorewall/shorewall.conf.
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#
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# This option has no effect if NEWNOTSYN=Yes
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#
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# It is the opinion of the author that
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# NEWNOTSYN=No creates more problems than
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# it solves and I recommend against using
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# that setting in shorewall.conf (hence
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# making the use of the 'newnotsyn'
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# interface option unnecessary).
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# routeback
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# If specified, indicates that Shorewall
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# should include rules that allow filtering
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# traffic arriving on this interface back
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# out that same interface.
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# arp_filter
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# If specified, this interface will only respond
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# to ARP who-has requests for IP addresses
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# configured on the interface. If not specified,
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# the interface can respond to ARP who-has requests
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# for IP addresses on any of the firewall's interface.
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# The interface must be up when shorewall is started.
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# nosmurfs
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# Filter packers for smurfs (Packets with a broadcast
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# address as the source).
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# detectnets
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# Automatically taylors the zone named in the ZONE
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# column to include only those hosts routed through
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# the interface.
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#
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# WARNING: DO NOT SET THE detectnets OPTION ON YOUR INTERNET INTERFACE!
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#
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# The order in which you list the options is not
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# significant but the list should have no embedded white
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# space.
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#
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# Example 1:
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# Suppose you have eth0 connected to a DSL modem
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# that gets it's IP address via DHCP from subnet
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# 206.191.149.192/27.
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#
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# Your entries for this setup would look like:
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#
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# #ZONE INTERFACE BROADCAST OPTIONS
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# net eth0 206.191.149.223 dhcp
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#
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# Example 2:
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# The same configuration without specifying broadcast
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# addresses is:
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#
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# #ZONE INTERFACE BROADCAST OPTIONS
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# net eth0 detect dhcp
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#
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# Example 3:
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# You have a simple dial-in system with no ethernet
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# connections.
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# #ZONE INTERFACE BROADCAST OPTIONS
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# net ppp0 -
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##############################################################################
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#ZONE INTERFACE BROADCAST OPTIONS
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net eth0 detect norfc1918,routefilter,dhcp,tcpflags
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#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE
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