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http://cgit.osmocom.org/osmo-ggsn/commit/?id=37c45e3998fca240b5266abd3ac883…
commit 37c45e3998fca240b5266abd3ac883d0a35bab50
Author: Pau Espin Pedrol <pespin(a)sysmocom.de>
Date: Thu Dec 14 14:09:13 2017 +0100
ggsn: Add 'ipv6 link-local' vty cmd
This vty cmd let's you set up a new link-local IP for a specific APN to
be used during ICMPv6 Router Advertisement procedure.
osmo-ggsn hence requires a link-local IPv6 address to be added to the
tun interface, otherwise the apn will not be configured correctly and it
won't be able to allocate addresses from the ipv6 pool later on.
This feature is useful in case your OS doesn't support autoconfiguring
link-local IPs when the interface is brought up (some linux versions are
known to fail at this) or in case you configured your OS specifically to
avoid automatic set up (sysctl net.ipv6.conf.*.autoconf).
If "no ipv6 link-local" is provided (default), osmo-ggsn will rely on the
OS or the ipup-script setting up the link-local IP for the tun
interface at creation time, then fetching it after ipup-script time and
using the first link-local ip found. On the other hand, if the "ipv6
link-local" cmd is provided, osmo-ggsn will add the link-local IP to the
interface manually and use that one for later Router Advertisement
procedures.
Change-Id: I09ef27f54940d4c47150e5f9016d1cd4298c16b5
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Summary of changes:
ggsn/ggsn.c | 17 ++++++++++++++++-
ggsn/ggsn.h | 1 +
ggsn/ggsn_vty.c | 20 ++++++++++++++++++++
3 files changed, 37 insertions(+), 1 deletion(-)
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