Re: msft 169.254.173.250 IP address

From: Darby Weaver <ccie.weaver_at_gmail.com>
Date: Fri, 10 Apr 2009 09:17:15 -0400

Sadiq Yakasai, *CCIE*# *19963*
**
*Are you ok? Did you get this one resolved properly?*
**
*Let me know if you still need assistance. *

On Thu, Apr 9, 2009 at 12:14 PM, Radioactive Frog <pbhatkoti_at_gmail.com>wrote:

> Sadiq,
>
>
> If your phone is connected to a Cisco CCM then look at the phone
> configuration page. There are some parameters. I had this issue with a few
> phones. In my case this was happening coz phone switch was receiving a
> Gratitude ARP which updates the ARP table with a new PC MAC address and
> ingress port TCAM still points to an old adjacency.
>
> Flip through those phone page parameters and you will get there.
>
> -frog
>
>
> receives a gratitude ARP that updates the ARP table with a new MAC address
> the ingress port TCAM still points to an old adjacency. Once the IP address
> is pinged from the route processor, the ingress port TCAM adjacency is
> updated.
>
> On Thu, Apr 9, 2009 at 10:43 PM, Ryan West <rwest_at_zyedge.com> wrote:
>
> > I dare to comment on this again :) Have you tried other PC's behind your
> > 7975? We have a few 7975's here at office and I haven't experienced the
> > same problems you are mentioning with their internal switch. Does your
> PC
> > exhibit the same behavior when plugged directly into the wall? And did
> you
> > say it was 15 mins or 15 seconds? Does a repair of the NIC still go
> through
> > the timeout and do you eventually end up with an IP address? And what is
> > running DHCP (AD intergrated / Linux / FW / router)?
> >
> > This has been a valuable process for me about re-reading the question,
> > during my studies I do tend to solve the problem within the first two
> > sentences :)
> >
> > -ryan
> >
> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> > Sadiq Yakasai
> > Sent: Thursday, April 09, 2009 4:53 AM
> > To: Dale Shaw
> > Cc: Cisco certification
> > Subject: Re: msft 169.254.173.250 IP address
> >
> > LOL!!! APIPA - wtf!!!
> >
> > Thanks for pointing this out Dale!!!
> >
> > John, thats a very good observation all these gurus overlooked. Its
> always
> > good to start from basics!
> >
> > Anyways, I have pinned down the problem, havent got to the bottom on the
> > cause though.
> >
> > So, it looks like DHCP is indeed timing out! Appologies "All_from _NJ"!!
> My
> > reason to discarding this as a cause is this: I am actually plugging the
> PC
> > behind a Cisco IP phone (7975) and I notice that everytime my PC comes
> > online, its takes up to 15mins before the NIC of the PC becomes enabled
> > (really weird behaviour) and I am suspecting even without becoming
> enabled
> > (at least to the human eye) the DHCP timeout has begun. As a consequence,
> > DHCP timesout just when the NIC becomes enabled (about 15secs) and this
> > mislead me.
> >
> > I need to find out why the PC NIC doesnt get enabled straight away for
> > now...
> >
> > Thanks for all the inputs guys - well appreciated. Gave me a bit of laugh
> > this early morning too :-)
> >
> > Sadiq
> >
> > On Thu, Apr 9, 2009 at 6:16 AM, Dale Shaw <dale.shaw_at_gmail.com> wrote:
> >
> > > Interesting how only about 10% of you are reading Sadiq's original
> > > post properly. Hopefully it's because you're all too busy studying :-)
> > >
> > > On Thu, Apr 9, 2009 at 2:21 PM, John Porter <jporter_hm_at_hotmail.com>
> > > wrote:
> > > > On Wed, Apr 8, 2009 at 2:34 PM, ALL From_NJ <all.from.nj_at_gmail.com>
> > > wrote:
> > > >> On Wed, Apr 8, 2009 at 9:27 AM, Sadiq Yakasai <sadiqtanko_at_gmail.com
> > > >wrote:
> > > >>
> > > >>> Hi Guys,
> > > >>>
> > > >>> I have done abit of googling but to no avail...but does anyone have
> > any
> > > >>> information about this IP address on Windows XP please?
> > > >>>
> > > >>> The PC is doing DHCP straight away but I am still seeing traffic
> > > sourced
> > > >>> from this IP address on a wireshark trace, which is kinda weird.
> > > Appears
> > > >>> to
> > > >>> me like the PC assigns itself this IP address right before
> assigning
> > > the
> > > >>> IP
> > > >>> address from the DHCP server.
> > > >>>
> > > >>> PS: There is no delay what so ever from the DHCP server and the
> > client
> > > >>> does
> > > >>> NOT timeout on DHCP.
> > > >>>
> > > >>> Thanks in advance,
> > > >>>
> > > >>> Sadiq
> > >
> > >
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> > >
> > >
> > >
> > >
> > >
> >
> >
> > --
> > CCIE #19963
> >
> >
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Received on Fri Apr 10 2009 - 09:17:15 ART

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