(usagi-users 02989) Re: Quick question on MIP ...

[Noriaki Takamiya <takamiya@xxxxxxxxxxxxx>]

>> Thu, 1 Jul 2004 14:04:06 +0100
>> [Subject: (usagi-users 02988) Re: Quick question on MIP ...]
>> "Daniel Tyrode" <dtyrode4@xxxxxxxxxxx> wrote...

dtyrode4> forgive me if this is not the case. Again related to the same previously
dtyrode4> mentioned MIP scenario; I have noticed that when the MN "loads" or
dtyrode4> "activates" an ipv6 tunnel ( this can be when starting the mobile-ip6 daemon
dtyrode4> or when moving to a foreign network ), all the routing information of
dtyrode4> previously existing ipv6 tunnels dissapears and they must be manually
dtyrode4> re-instated. IPv6 addresses and admin status of these previously created
dtyrode4> tunnels remain untouched though.  Is there a good reason for this to happen
dtyrode4> ? ... is there a way it can be avoided ?

  When MN moves to the another foreign link, old routing information
  is once deleted.

  I think it is done to keep the routing to the HA using tunnel correctly.

  In this code, delete_routes() in mdetect.c will delete when MN
  detects the movement.

  The decision is done by mn_route_cleaner() in the same file.

  Regards,

--
Noriaki Takamiya