[cisco-voip] oddball hsrp/phone issue

[Ed Leatherman]

We did try to ping from the 4500 (default gw) while it was happening,
without any success. I wasn't in the 'driver's seat' but pretty sure the
network ops guy just used ping without any other options - i'm a wee bit
unclear on which source interface IOS picks at that point but i'm assuming
it would choose the SVI for the vlan since its directly connected. I didn't
think to ask him to use extended commands and specify the source interface
to be sure though.

If I can't duplicate this in the lab this afternoon with a 4500 I will
probably end up making a new voice vlan and subnet w/o hsrp so I can move
them over a few at a time instead of all at once. Relatively straight
forward, but i'll have to reconfigure SRST, and it won't explain why we
even had the issue in the first place.

Thanks the suggestions everyone!

On Sat, Jul 14, 2012 at 6:14 PM, <george.hendrix at l-3com.com> wrote:

>  Have u tried to ping the phones sourcing from the Def GW IP address?
> Did it work?  Clear mac table and arp table on all routers/switches with
> that VLAN?****
>
> ** **
>
> Can you connect a PC to that VLAN (access mode of course) and it work?****
>
> ** **
>
> ** **
>
> Disabling gratuitous ARP should not be the issue.****
>
>
> http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/security/5_1_3/secu_ph.html#wp1028752
> ****
>
> ** **
>
> Regards,****
>
> Bill ****
>
> ** **
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Ed Leatherman
> *Sent:* Saturday, July 14, 2012 7:27 AM
> *To:* Justin Steinberg
> *Cc:* cisco voip
> *Subject:* Re: [cisco-voip] oddball hsrp/phone issue****
>
> ** **
>
> I wish, that would be an easy fix!****
>
> ** **
>
> ip dhcp pool ipphones****
>
>  network 10.x.y.128 255.255.255.192****
>
>  option 150 ip <tftp servers> ****
>
>  default-router 10.x.y.129****
>
> ** **
>
>  ****
>
> ** **
>
> On Fri, Jul 13, 2012 at 7:30 PM, Justin Steinberg <jsteinberg at gmail.com>
> wrote:****
>
> Dhcp scope have 130 for default gateway?****
>
> ** **
>
>
>
> ****
>
> ** **
>
> --
> Ed Leatherman****
>



-- 
Ed Leatherman
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