Re: Is it safe to use a DHCP to assign the IP addresses to the servers
- From: Meinolf Weber
- Date: Tue, 30 Sep 2008 06:19:59 +0000 (UTC)
Hello Giuseppe,
See inline.
Best regards
Meinolf Weber
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In my company we have at least 300 servers that are installed and
managed by different people.
Sometime It happens that the person that installs the server forgets
something when configuring the TCP/IP section of the network card;
some
examples are:
They forget to configure the wins
They write a wrong wins address
They assign to the server an IP address that is out of our standard
range
So I was thinking to use the DHCP to deploy the TCP/IP configuration
(Using a reservation to make the IP address ever the same).
I would like to know in your experience if this is a good way or if it
is better to avoid this solution; what are the pros and the cons and
if it is worth doing it.
For servers you should always use fixed ip's, so that the servername and ip address will not change.
Some drowbacks I have been told are the following:
1) if the DHCP fails we will not be able any more to access all the
servers.
Yes.
A solution could be a redundant DHCP structure (2 or more DHCP
servers) and
to configure the "Alternate configuration" of the network card
Yes.
2) If we have two network cards in teaming and one of them fails the
server
will be no more work.
In my knowkedge if we have a team the only mac address that cares is
the
Team mac address that is a software mac address so I should not have
problems
Depends on your configuration of the teaming, fault tolerance or load balancing.
3) I could have problems with multihomed computers
(I don't understand why; each computer should take its IP from the
segment
it is connected to)
See my next posting about multihoming. It's big but informativ.
4) I can only assign one IP address
Yes. And also with fixed ip's you should not multihome computers, especially servers.
This is true but It is not a common scenario (and we can configure
taht
machine manually)
.
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