asterisk users - May 2007 - Polycom or Linksys phones bootp tftp config setup

Hi All,

Has anyone gotten the polycoms or the linksys phones to accept oprtion
66 on the dhcp request for the address of the tftp config server?

We have the dhcp server issuing the proper IP of the tftp server, but
the phones just sit there and never try to contact the tftp server for
their configs.  We can see the proper option going from the dhcp to
the phones with ethereal trace.

Thanks

JR
-- 
JR Richardson
Engineering for the Masses

JR Richardson wrote:
> Hi All,
> 
> Has anyone gotten the polycoms or the linksys phones to accept oprtion
> 66 on the dhcp request for the address of the tftp config server?
> 
> We have the dhcp server issuing the proper IP of the tftp server, but
> the phones just sit there and never try to contact the tftp server for
> their configs.  We can see the proper option going from the dhcp to
> the phones with ethereal trace.
I cannot speak to the Linksys phones.

The Polycoms need to be told in the console to use tftp. They are set to
use ftp by default.

Once set, they will honour a DHCP message containing the tftp server
address.

-Stephen-

> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com 
> [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of 
> JR Richardson
> Sent: Friday, May 25, 2007 11:31 AM
> To: asterisk-users@lists.digium.com
> Subject: [asterisk-users] Polycom or Linksys phones bootp 
> tftp config setup
> 
> Hi All,
> 
> Has anyone gotten the polycoms or the linksys phones to accept oprtion
> 66 on the dhcp request for the address of the tftp config server?
> 
> We have the dhcp server issuing the proper IP of the tftp 
> server, but the phones just sit there and never try to 
> contact the tftp server for their configs.  We can see the 
> proper option going from the dhcp to the phones with ethereal trace.
> 
Can you attach the trace, or at least let me know what DHCP server you
are using?  The Polycoms, at least, require that DHCP option 66 use the
Microsoft-style DHCP behavior and actually encode it as a DHCP option
(rather than a BootP header).  On certain DHCP servers (Nortel at least
I can say for sure), the default behavior is "RFC-copmpliant" (or at
least so they say).

The other responder has it right, though, that at least insofar as the
Polycoms are concerned FTP is the default rather than tftp.

- Brad

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I am not sure about the details of the DHCP protocol and what polycom want
but in a linux box using dhcp3 server this works for me:

option tftp-server-name         "tftp://10.102.1.1";

Justin

On 5/25/07, Watkins, Bradley <Bradley.Watkins@compuware.com>
wrote:
>
> > -----Original Message-----
> > From: asterisk-users-bounces@lists.digium.com
> > [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of
> > JR Richardson
> > Sent: Friday, May 25, 2007 11:31 AM
> > To: asterisk-users@lists.digium.com
> > Subject: [asterisk-users] Polycom or Linksys phones bootp
> > tftp config setup
> >
> > Hi All,
> >
> > Has anyone gotten the polycoms or the linksys phones to accept oprtion
> > 66 on the dhcp request for the address of the tftp config server?
> >
> > We have the dhcp server issuing the proper IP of the tftp
> > server, but the phones just sit there and never try to
> > contact the tftp server for their configs.  We can see the
> > proper option going from the dhcp to the phones with ethereal trace.
> >
>
> Can you attach the trace, or at least let me know what DHCP server you
> are using?  The Polycoms, at least, require that DHCP option 66 use the
> Microsoft-style DHCP behavior and actually encode it as a DHCP option
> (rather than a BootP header).  On certain DHCP servers (Nortel at least
> I can say for sure), the default behavior is "RFC-copmpliant" (or
at
> least so they say).
>
> The other responder has it right, though, that at least insofar as the
> Polycoms are concerned FTP is the default rather than tftp.
>
> - Brad
>
> The contents of this e-mail are intended for the named addressee only. It
> contains information that may be confidential. Unless you are the named
> addressee or an authorized designee, you may not copy or use it, or
disclose
> it to anyone else. If you received it in error please notify us immediately
> and then destroy it.
> _______________________________________________
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-- 
Justin
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> Can you attach the trace, or at least let me know what DHCP server you
> are using?  The Polycoms, at least, require that DHCP option 66 use the
> Microsoft-style DHCP behavior and actually encode it as a DHCP option
> (rather than a BootP header).  On certain DHCP servers (Nortel at least
> I can say for sure), the default behavior is "RFC-copmpliant" (or
at
> least so they say).
Thanks for the feedback, Stephen and Brad.  I had an IM with Bruce
Reeves earlier and he let me know that my string value was wrong.  I
was issuing an IP address instead of a complete URL.  Also I switched
to FTP instead if TFTP and the Polycom came right up and acted as
expected.  I'm still poking around with the Linksys.

Thanks.

JR
-- 
JR Richardson
Engineering for the Masses

Hi JR -
> Has anyone gotten the polycoms or the linksys phones to accept oprtion
> 66 on the dhcp request for the address of the tftp config server?
Yes.  I've gotten this to work successfully using Polycom phones with
DHCP from Cisco routers and firewalls (I generally don't use ISC's
DHCP).  Here's the the Cisco IOS statement I use:

option 66 ascii "123.456.78.9"


- Noah