(usagi-users 02987) Re: Quick question on MIP ...

[Noriaki Takamiya <takamiya@xxxxxxxxxxxxx>]

Hi,

>> Wed, 30 Jun 2004 19:42:29 +0100
>> [Subject: (usagi-users 02986) Quick question on MIP ...]
>> "Daniel Tyrode" <dtyrode4@xxxxxxxxxxx> wrote...

dtyrode4> By using mipdiag & tcpdump, I realize that the CN receives a single BU (the
dtyrode4> HOTI tunneled through the HA), yet it does not send a BA back to the MN.
dtyrode4> This is not the case with the HA, which receives and ACKs the BUs.
dtyrode4> Where could the problem be ? .. should I expect to be able to detect the
dtyrode4> HOTI-HOT and COTI-COT with mipdiag ? ...

  In this implementation, MN doesn't add A flag in BU. So CN won't
  send BA to MN. It is reasonable case.

dtyrode4> On the other hand, when the MN returns to the Home Network, the MN does not
dtyrode4> send BUs to the CN, forcing the CN to mantain the binding of the CoA until
dtyrode4> the cache expires ( >400 secs later ) and interrupting IP communication. Any
dtyrode4> ideas on how to approach this problem ?

  I'm sorry, but you should modify to send BU for de-registration....

  Regards,

--
Noriaki Takamiya