config ADK_KPACKAGE_KMOD_NF_CONNTRACK_IPV4 bool 'IPv4 connection tracking support (required for NAT)' select ADK_KPACKAGE_KMOD_NF_CONNTRACK help Connection tracking keeps a record of what packets have passed through your machine, in order to figure out how they are related into connections. config ADK_KPACKAGE_KMOD_IP_NF_CT_ACCT bool 'Connection tracking flow accounting' depends on ADK_KPACKAGE_KMOD_NF_CONNTRACK help If this option is enabled, the connection tracking code will keep per-flow packet and byte counters. Those counters can be used for flow-based accounting or the `connbytes' match. config ADK_KPACKAGE_KMOD_IP_NF_IPTABLES tristate 'IP tables support (required for filtering/masq/NAT)' select ADK_KERNEL_NETFILTER_XTABLES help iptables is a general, extensible packet identification framework. The packet filtering and full NAT (masquerading, port forwarding, etc) subsystems now use this: say `Y' or `M' here if you want to use either of those. config ADK_KPACKAGE_KMOD_IP_NF_FILTER tristate 'Packet Filtering' depends on ADK_KPACKAGE_KMOD_IP_NF_IPTABLES help Packet filtering defines a table `filter', which has a series of rules for simple packet filtering at local input, forwarding and local output. See the man page for iptables(8). config ADK_KPACKAGE_KMOD_FULL_NAT tristate "Meta package for Full NAT" select ADK_KPACKAGE_KMOD_NF_NAT if ADK_KERNEL_VERSION_3_4_82 select ADK_KPACKAGE_KMOD_NF_NAT_IPV4 if ADK_KERNEL_VERSION_3_11_10 select ADK_KPACKAGE_KMOD_NF_NAT_IPV4 if ADK_KERNEL_VERSION_3_12_11 select ADK_KPACKAGE_KMOD_NF_NAT_IPV4 if ADK_KERNEL_VERSION_3_13_5 config ADK_KPACKAGE_KMOD_NF_NAT tristate 'Full NAT' depends on ADK_KPACKAGE_KMOD_IP_NF_IPTABLES depends on ADK_KERNEL_VERSION_3_4_82 help The Full NAT option allows masquerading, port forwarding and other forms of full Network Address Port Translation. It is controlled by the `nat' table in iptables: see the man page for iptables(8). config ADK_KPACKAGE_KMOD_NF_NAT_IPV4 tristate 'Full NAT' depends on ADK_KPACKAGE_KMOD_IP_NF_IPTABLES depends on ADK_KERNEL_VERSION_3_11_10 || ADK_KERNEL_VERSION_3_12_11 \ || ADK_KERNEL_VERSION_3_13_5 help The Full NAT option allows masquerading, port forwarding and other forms of full Network Address Port Translation. It is controlled by the `nat' table in iptables: see the man page for iptables(8). config ADK_KPACKAGE_KMOD_IP_NF_TARGET_MASQUERADE tristate 'MASQUERADE target support' depends on ADK_KPACKAGE_KMOD_FULL_NAT help Masquerading is a special case of NAT: all outgoing connections are changed to seem to come from a particular interface's address, and if the interface goes down, those connections are lost. This is only useful for dialup accounts with dynamic IP address (ie. your IP address will be different on next dialup). config ADK_KPACKAGE_KMOD_IP_NF_TARGET_REJECT tristate 'REJECT target support' depends on ADK_KPACKAGE_KMOD_IP_NF_FILTER help The REJECT target allows a filtering rule to specify that an ICMP error should be issued in response to an incoming packet, rather than silently being dropped. config ADK_KPACKAGE_KMOD_IP_NF_TARGET_ULOG tristate 'ULOG target support (ipv4 only)' depends on ADK_KPACKAGE_KMOD_IP_NF_FILTER help This option enables the old IPv4-only "ipt_ULOG" implementation which has been obsoleted by the new "nfnetlink_log" code (see CONFIG_NETFILTER_NETLINK_LOG). This option adds a `ULOG' target, which allows you to create rules in any iptables table. The packet is passed to a userspace logging daemon using netlink multicast sockets; unlike the LOG target which can only be viewed through syslog. The appropriate userspace logging daemon (ulogd) may be obtained from config ADK_KPACKAGE_KMOD_IP_NF_TARGET_REDIRECT tristate 'REDIRECT target support' depends on ADK_KPACKAGE_KMOD_FULL_NAT help REDIRECT is a special case of NAT: all incoming connections are mapped onto the incoming interface's address, causing the packets to come to the local machine instead of passing through. This is useful for transparent proxies. config ADK_KPACKAGE_KMOD_IP_NF_TARGET_NETMAP tristate 'NETMAP target support' depends on ADK_KPACKAGE_KMOD_FULL_NAT help NETMAP is an implementation of static 1:1 NAT mapping of network addresses. It maps the network address part, while keeping the host address part intact. It is similar to Fast NAT, except that Netfilter's connection tracking doesn't work well with Fast NAT. config ADK_KPACKAGE_KMOD_IP_NF_MANGLE tristate 'Packet mangling' depends on ADK_KPACKAGE_KMOD_FULL_NAT help This option adds a `mangle' table to iptables: see the man page for iptables(8). This table is used for various packet alterations which can effect how the packet is routed. config ADK_KPACKAGE_KMOD_IP_NF_TARGET_ECN tristate 'ECN target support' depends on ADK_KPACKAGE_KMOD_IP_NF_MANGLE help This option adds a `ECN' target, which can be used in the iptables mangle table. You can use this target to remove the ECN bits from the IPv4 header of an IP packet. This is particularly useful, if you need to work around existing ECN blackholes on the internet, but don't want to disable ECN support in general.