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Feature | RFC/ Draft |
Status Vanilla 2.4 (2.4.6) |
Status Vanilla 2.6 |
Who is working on it | Link to sources / Additional comments |
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Raw socket | working | working |
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TCP | working | working |
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UDP | working | working |
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SCTP |
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(reported 2004-07-29) |
(reported 2004-07-29) |
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Stream Transmission Control Protocol Linux Kernel SCTP (lksctp) Project |
ICMP | |||||
ICMPv6 | RFC 2463 |
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ICMP node information queries | draft-ietf-ipngwg-icmp-name-lookups | missing | USAGI | ||
Address configuration | |||||
Stateless address autoconfiguration | working | ||||
Privacy extensions for stateless address autoconfiguration | RFC
3041 draft-ietf-ipngwg-temp-addresses-v2 |
missing | per interface switchable | ||
Node discovery | |||||
Duplicate address detection | working | working | |||
Neigbour discovery | bugfixed | USAGI | some (older) versions do not re-join all-node multicast address on network devices after down and up again | ||
Neigbour discovery for inverse discovery | RFC 3122 | missing | |||
Router discovery | bugfixed | USAGI | some (older) versions do not re-join all-node multicast address on network devices after down and up again | ||
Tunneling | |||||
Static tunneling (IPv6 encapsulated in IPv4) | working | working | |||
Automatic tunneling of IPv4-comaptible IPv6 addresses | working | working | |||
6over4 | missing | Stig Venås do not have enough time for this | |||
6to4 | working | working | |||
6to4 over UDP | draft-ietf-ngtrans-shipworm | missing | |||
IPv{4,6} over IPv6 | USAGI | ||||
ISATAP | draft-ietf-ngtrans-isatap | in progress? | Fred Templin, Nathan Lutchansky | ||
Teredo | described working | described working | Use miredo http://www.simphalempin.com/dev/miredo/ |
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ToS bit handling | RFC 2893 3.5 | probably | |||
ToS bit handling at Differentiated Services and Tunnels | RFC 2983 | ||||
Bridging | |||||
Multilink subnets | draft-thaler-ipngwg-multilink-subnets | missing | |||
Routing | |||||
Unicast routing | working | ||||
Multicast routing | USAGI | ||||
Anycast routing | working | similar to unicast routing | |||
Selections | |||||
Source address selection | draft-ietf-ipngwg-default-addr-select | in progress | Stig Venås | http://www.venaas.priv.no/ipv6/srcaddrsel.html
kernel patch of the USAGI project more info below |
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Default router selection | working, but rather old | ||||
Security | |||||
IPsec Transport Mode AH | probably | USAGI | |||
IPsec Transport Mode ESP | working | USAGI | |||
IPsec Tunnel Mode AH | in progress | USAGI | |||
IPsec Tunnel Mode ESP | working | USAGI | |||
Firewalling | working (stateless) |
working (stateless since 2.6.0, stateful since 2.6.20) |
USAGI & Netfilter team |
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Mobility | |||||
Mobility support | MIPL | ||||
Options | |||||
hop-by-hop / jumbo payload | implemented | ||||
hop-by-hop / router alert | implemented | ||||
routing header | implemented | ||||
destination options | USAGI | ||||
QoS | |||||
Flow label support in kernel | still unknown | ||||
Flow label specific routing | still unknown | ||||
Flow label specific routing | still unknown | Wang Hui | |||
Flow label support on application level | working? | ||||
Interface support / layer 2 transport protocols | |||||
Ethernet |
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Token-Ring | Mike Phillips | ||||
PPP | RFC 2472 |
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with IPv6 enabled pppd working in 2.4 confirmed by me |
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ATM-PVC | |||||
ISDN CiscoHDLC | cannot test because of lack of a Cisco router | ||||
ISDN X.25 | cannot test | ||||
ISDN HDLC using encapsulation ip |
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confirmed by me | |||
ISDN HDLC using encapsulation syncppp and ipppd |
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confirmed by me, kernel doesn't support IPv6 in isdn_ppp.c: isdn_ppp: skipped unsupported protocol: 0xdd86. ipppd: i2.2 patch level 12 |
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ISDN HDLC using encapsulation rawip |
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design issue, no type field available better called now rawipv4 |
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SLIP and PLIP | RFC 1055 |
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design issue, no type field available better called now SLIPv4 |
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MPLS | URL: http://sf.net/projects/mpls-linux/ | ||||
Still unsorted | |||||
Renumbering link net | working | with radvd | |||
Multicast client | working | ||||
Anycast listening | missing | ||||
Path MTU discovery | bugfix in 2.4.6 | ||||
sin6_socpe_id | like in RFC 2553 | SEKIYA Yuji USAGI project |
http://ftp2.v6.linux.or.jp/pub/Linux/kernel/patches/
ftp://ftp.nemoto.ecei.tohoku.ac.jp/pub/Net/IPv6/Patches/ kernel patch of the USAGI project discussions..., update of RFC is in progress |
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Divert sockets | Ilia Baldinei | http://www.anr.mcnc.org/~divert | |||
specify next hop address | RFC 2292 | missing | |||
Traffic counters | missing | IPv6 data provided for SNMP |
Feature | kernel 2.4.5 + iptables-1.2.2 status | Status 2001-12-30 (got info, no self-tests) | Oct 2005 (2.6.x) | Current | Additional comment |
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Target ACCEPT, DROP | built-in, working | built-in, working | built-in, working | ||
Target LOG | patch-o-matic, working | patch-o-matic, working | built-in, working | ||
Target REJECT | patch-o-matic, not working, missing libary for ip6tables (perhaps others, too) | patch-o-matic, working | patch-o-matic, working | ||
Match extension icmpv6 | not working | built-in, working | |||
Connection tracking | not implemented yet | not implemented yet | planned for > 2.6.17 | Since
2.6.20 (May 2007) |
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ip6tables manual page | missing | covering basics | available | ||
ip6tables documentation | not really | available | |||
EUI64 adress checker for local networks | patch-o-matic, currently in test | ||||
extension header (existance) match | patch-o-matic, early release | ||||
match limit match mac match multiport match owner |
patch-o-matic | avalable | |||
... |
Transport protocol user space daemon | RFC | Who is working on it | Link to sources | Additional comment |
pppd | 2472 | Maintainers | URL: http://freshmeat.net/projects/pppd/
MS-CBCP support: http://sourceforge.net/projects/pppcbcp/ |
native support Status (see here for more details): Assign link-local addresses on each side: ok IPv6 transport: ok Server assign prefixes to client: (not defined in IPv6CP) so only via DHCPv6 or Router Advertisements |
ipppd | isdn4linux team? | cannot tested because of the missing IPv6 support in
isdn_ppp.c Information from an ISDN developer: support for IPv6 of ISDN/syncPPP is planned for kernel-2.5 series (redesign of ISDN [full CAPI]) using the PPP layer of kernel afterwards, perhaps a backport to 2.4 will be done. |
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IPsec implementation (User space) |
RFC | Status | Who is working on it | Link to sources | Additional comment |
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pluto |
working |
OpenS/WAN | http://www.openswan.org
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Former known as FreeS/WAN |
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racoon | working | USAGI and Netdev team | http://ipsec-tools.sourceforge.net/ |
DHCPv6 implementation | RFC | Status | Who is working on it | Link to sources | Additional comment |
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DHCPv6 |
working | Tomasz Mrugalski | http://dhcpv6.sourceforge.net/ |
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Dibbler | http://klub.com.pl/dhcpv6/ |
I think Linux needs better IPv6 source address selection. When there are several global non-deprecated addresses, the current code (2.3.99-pre6) simply picks the first it finds, while I would like to choose one with longest common prefix compared to the destination address. This is described in draft-ietf-ipngwg-default-addr-select-00.txt paragraph 4 rule 6, and seems to be what for instance Solaris 8 does.
This is generally useful when one has several global IPv6 addresses (multihomed). An important special case is when one of the addresses is a 6to4 address (starting with 2002::/16). If the destination address is 6to4 the source address must also be 6to4. If the destionation is some other global address (3ffe or something) it must not be used.It's necessary when an interface has both 6to4 and "normal" global addresses
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