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Groups > comp.os.linux.networking > #2638
| From | Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> |
|---|---|
| Newsgroups | comp.os.linux.networking |
| Subject | Re: Odd interaction between /proc/sys/net/ipv6/conf/all/forwarding & /sbin/ip -6 addr add |
| Date | 2013-12-10 09:47 +0100 |
| Organization | Plouf ! |
| Message-ID | <l86kfb$21a2$1@saria.nerim.net> (permalink) |
| References | <5Kppu.560034$G93.418190@fx09.iad> <wwvppp54t4t.fsf@sfere.anjou.terraraq.org.uk> <qxvpu.566736$G93.40653@fx09.iad> |
Andrew Gideon a écrit :
> More recently, there's RFC6164. Does Linux support
> "Routers MUST support the assignment of /127 prefixes on point-to-point
> inter-router links" - from the recommendations section?
Yes, since Linux 3.1.
commit 2bda8a0c8af5294b869da1efd2c2b9a562f50dcf
Author: Bj<C3><B8>rn Mork <bjorn@mork.no>
Date: Tue Jul 5 23:04:13 2011 +0000
Disable router anycast address for /127 prefixes
RFC 6164 requires that routers MUST disable Subnet-Router anycast
for the prefix when /127 prefixes are used.
No need for matching code in addrconf_leave_anycast() as it
will silently ignore any attempt to leave an unknown anycast
address.
commit 32019e651c6fcee6bad6b6adb171feea5af0d16b
Author: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Date: Sun Jul 24 11:44:34 2011 +0000
ipv6: Do not leave router anycast address for /127 prefixes.
Original commit 2bda8a0c8af... "Disable router anycast
address for /127 prefixes" says:
| No need for matching code in addrconf_leave_anycast() as it
| will silently ignore any attempt to leave an unknown anycast
| address.
After analysis, because 1) we may add two or more prefixes on the
same interface, or 2)user may have manually joined that anycast,
we may hit chances to have anycast address which as if we had
generated one by /127 prefix and we should not leave from subnet-
router anycast address unconditionally.
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Odd interaction between /proc/sys/net/ipv6/conf/all/forwarding & /sbin/ip -6 addr add Andrew Gideon <c182driver9@gideon.org> - 2013-12-09 20:28 +0000
Re: Odd interaction between /proc/sys/net/ipv6/conf/all/forwarding & /sbin/ip -6 addr add Richard Kettlewell <rjk@greenend.org.uk> - 2013-12-09 21:22 +0000
Re: Odd interaction between /proc/sys/net/ipv6/conf/all/forwarding & /sbin/ip -6 addr add Andrew Gideon <c182driver9@gideon.org> - 2013-12-10 03:04 +0000
Re: Odd interaction between /proc/sys/net/ipv6/conf/all/forwarding & /sbin/ip -6 addr add Pascal Hambourg <boite-a-spam@plouf.fr.eu.org> - 2013-12-10 09:47 +0100
Re: Odd interaction between /proc/sys/net/ipv6/conf/all/forwarding & /sbin/ip -6 addr add Richard Kettlewell <rjk@greenend.org.uk> - 2013-12-10 08:56 +0000
Re: Odd interaction between /proc/sys/net/ipv6/conf/all/forwarding & /sbin/ip -6 addr add Andrew Gideon <c182driver9@gideon.org> - 2013-12-10 14:22 +0000
Re: Odd interaction between /proc/sys/net/ipv6/conf/all/forwarding & /sbin/ip -6 addr add Richard Kettlewell <rjk@greenend.org.uk> - 2013-12-10 17:01 +0000
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