Dhcpd versus Windows Vista

Bill Campbell bill at celestial.com
Mon Mar 12 17:23:42 UTC 2007

On Mon, Mar 12, 2007, Shane Kerr wrote:
>Hash: SHA1

>I don't think your problem and the knowledge base entry are related.

>The KB article describes a problem where either the DHCP server or
>something in the network between the client and the server (like a router
>or a switch) blocks the DHCP packet from the client because the broadcast
>flag is set in Vista.

>However, since the server is actually issuing a lease to the client, this
>is probably not it.

>You point out that everything works when you open the firewall. Badly
>configured firewalls are often a source of problems for DHCP. My
>recommendation would be to use Google, and try to find another user with a
>similar setup and a solution.  Failing that, most firewalls have some
>documentation of some kind. ;)

Another problem I've found with commodity firewall/router boxes
is that they tend to have dhcp enabled by default which can be
``interesting'' if one already has a dhcpd or bootp server on the
network.  This bit me a couple of years ago when we installed a
LinkSys BEFVP41 VPN box on a network where a Linux server was
running bootpd servicing diskless workstations.  I had forgotten
that bootpd and dhcpd run on the same port.

INTERNET:   bill at Celestial.COM  Bill Campbell; Celestial Software LLC
URL: http://www.celestial.com/  PO Box 820; 6641 E. Mercer Way
FAX:            (206) 232-9186  Mercer Island, WA 98040-0820; (206) 236-1676

Breathe fire, slay dragons, and take chances. Failure is temporary, regret
is eternal.

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