From: André Bersvendsen (an-bersv@xxxxxxxxx)
Date: Tue Jul 23 2002 - 18:52:43 GMT-3
Hi Anthony,
I have used the DHCP server in Novell, Solaris (dont remember the name
of it - use SUN's infodoc 16206 for configuration hints) and IOS.
I have also set up IOS routers as DHCP relay in networks with more than
one Microsoft's DHCP server for Windows NT 4.0 server. But I do not
touch any MS OS'es my self so I do not know how they got that to work. I
have used DHCP servers for Linux and some works fine others do not. For
me they do not work if they do not follow the spesifications described
in the book "The DHCP Handbook" by Ralph Droms (chair of the IETH
Dynamic Host Configuration (DHC) Working Group. In this book the RFC's
is decribed, and aditional information is given.
The Novell DHCP server works fine but it is to old - "nobody" use Novell
anymore. The Solaris version is also good.
I have configured the DHCP server for IOS (two routers (MSFC2)) in a
network with around 500 clients. This was with 7 segments/VLANS. In this
solution they did not share any DHCP database at the beginning. - No
problems. But later I set up a shared DHCP database on a TFTP server. -
No problems even if the TFTP server is down.
It is a lot of bad DHCP clients and servers in the world. So test them.
Do they follow the simple rules given in the RFC they are ok. Use a Sniffer.
I am not sure what communication problems you think of.
>Andre,
>
>You are right that it does require twice as many addresses to have the
>DHCP servers operating independently and I would also conceed that I
>only tried 3 or 4 vendors DHCP servers which "shared the ranges" before
>giving up and falling back on the "2 server separate range" method. It
>was also several years ago that I became sold on this method. I
>remember using Checkpoint's DHCP and a couple of others that were
>supposed to work as you described below but it was problematic and
>caused workstations to be down hard; where as the 2 server method, in a
>worst case scenario required a workstation to renew the address. What
>is the DHCP server that "works in real life "? Is it the Cisco Router
>DHCP? or a How big are the networks? What happens when communication
>problems occur? I would be interested because the 2 server method is
>only feasible with private addresses due to the waste.
>
>Anthony Pace
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:36:41 GMT-3