Jim,
So that is how your DHCP works...Mine, I am with Optus @home in Australia, they use
the hostname as the key for DHCP. At work we run the Microsoft DHCP Server and never
have any problems. In that case, it looks like your cable modem is acting as a DHCP
relay. If that is the case, it may not like some of options that linux passes in the
DHCP discover.
-----Original Message-----
From: Jim Harris [SMTP:[EMAIL PROTECTED]]
Sent: Saturday, January 20, 2001 2:23 PM
To: [EMAIL PROTECTED]
Subject: RE: [STN] "Linux" DHCP vs "M$" DHCP???
Ian,
You and Lyle have just contradicted each other - if I understood
correctly.
I do -not- think it is a "host name" issue - as the way the cable
company validates me is via the unique serial number burnt into the
cable modem - not by anything -I- do. I can have any host name (or no
host name at all) if I so choose.
Once I have gotten past the DHCP bottle-neck - I get leases quickly.
However - getting past the bottleneck is the issue. In Windoze I can
run winipcfg - and do release > renew cycles until hell freezes - and
everyone is 100% cast iron happy. It is ONLY when I use the non-M$
operating system that the s**t hits the fan. (and this is true on
several private/corporate networks as well)
Jim
Ian McDermid wrote:
> Jim,
>
> BOOTP is indeed different to DHCP. An easy demo of this is the DHCP
> server with STN. It will not respond to BOOTP requests. As Lyle points
> out, as DHCP is a broadcast it will not pass over a router unless BOOTP
> forwarding is turned on. Microsoft call it DHCH Relay. This works by
> sending the IP address of the relay agent so the DHCP server can work
> out if it has a "scope" or range of addresses setup for the requesting
> subnet.
>
> Another possibility for your problem is the release of of the current
> lease your machine has. Is the host name the same under Linux and
> Windoze. Is this how your DHCP lease is obtained?? You may be getting
> reject packets if the lease has not expired. This is a problem with
> Cisco (The Microsoft of Networking) products. You can get the lease time
> from ipconfig/all (NT) or winipcfg (9X).
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