1TAYGA(8) TAYGA(8)
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6 tayga - stateless NAT64 daemon
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10 tayga [OPTION]...
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12 tayga --mktun [OPTION]...
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14 tayga --rmtun [OPTION]...
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18 TAYGA is a stateless NAT64 daemon for Linux. Using the in-kernel TUN
19 network driver, TAYGA receives IPv4 and IPv6 packets from the host's
20 network stack, translates them to the other protocol, and then sends
21 the translated packets back to the host using the same TUN interface.
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23 Translation is compliant with IETF Internet-Draft draft-ietf-behave-
24 v6v4-xlate-23, and address mapping is performed in accordance with RFC
25 6052. Optionally, TAYGA may be configured to dynamically map IPv6
26 hosts to addresses drawn from a configured IPv4 address pool.
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28 As a stateless NAT, TAYGA requires a one-to-one mapping between IPv4
29 addresses and IPv6 addresses. Mapping multiple IPv6 addresses onto a
30 single IPv4 address can be achieved by mapping IPv6 addresses to pri‐
31 vate IPv4 addresses with TAYGA and then using a stateful NAT44 (such as
32 the iptables(8) MASQUERADE target) to map the private IPv4 addresses
33 onto the desired single IPv4 address.
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35 TAYGA's configuration is stored in the tayga.conf(5) file, which is
36 usually found in /etc/tayga.conf or /usr/local/etc/tayga.conf.
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40 Without the --mktun or --rmtun options, the `tayga` executable runs as
41 a daemon, translating packets as described above.
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43 The --mktun and --rmtun options instruct TAYGA to create or destroy,
44 respectively, its configured TUN device as a "persistent" interface and
45 then immediately exit.
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47 Persistent TUN devices remain present on the host system even when
48 TAYGA is not running. This allows host-side network parameters and
49 firewall rules to be configured prior to commencement of packet trans‐
50 lation. This may simplify network configuration on the host; for exam‐
51 ple, systems which use a Debian-style /etc/network/interfaces file may
52 configure TAYGA's TUN device at boot by running `tayga --mktun` as a
53 "pre-up" command and then configuring the TUN device as any other net‐
54 work interface.
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58 -c configfile | --config configfile
59 Read configuration options from configfile
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61 -d Enable debug messages (enables --nodetach as well)
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63 -n | --nodetach
64 Do not detach from terminal
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66 -u userid | --user userid
67 Set uid to userid after initialization
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69 -g groupid | --group groupid
70 Set gid to groupid after initialization
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72 -r | --chroot
73 chroot() to data-dir (specified in config file)
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75 -p pidfile | --pidfile pidfile
76 Write process ID of daemon to pidfile
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79 Written by Nathan Lutchansky <lutchann@litech.org>
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82 Copyright © 2010 Nathan Lutchansky
83 License GPLv2+: GNU GPL version 2 or later
84 This is free software: you are free to change and redistribute it.
85 There is NO WARRANTY, to the extent permitted by law.
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88 tayga.conf(5)
89 <http://www.litech.org/tayga/>
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93TAYGA 0.9.2 June 2011 TAYGA(8)