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General DHCP Question

By dshuang5858 ·
I'm running w2k AD domain. Does anyone know what is the reason setup DHCP service on w2k server instead on router firewall device? (I understand the purpose of setting DHCP, but unclear if I should create DHCP on router or on server box.)

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General DHCP Question

by avalentino In reply to General DHCP Question

When you run DHCP (Dynamic Host Configuration Protocol) on your server, you are dynamically assigning IP addresses to the client computers on your network. I would run DHCP on your Server and not the router. Running DHCP on your server allows moreflexibility. There is more flexibility when you run DHCP on your W2K server. An example of the flexibility is that you can exclude a certain amount of IP addresses for static usage on other machines. Administering changes within your network willbecome easier, such as adding new routers, etc. What kind of router do you have and how many clients are on your network?

An example of the DHCP server range would be:
IP: 192.168.1.1 - 192.168.1.254
SubNet: 255.255.255.0

You may want to know these TCP/IP commands for refreshing the IP address on client PC's:
1) Run your DOS prompt
2) ipconfig /release
3) ipconfig /renew

The 'release' releases your NIC assigned address from your client computer. The 'renew' renews the IP addressfrom your DHCP server. Note these commmands need to be ran at the client pc's.

Depending on the clients you have i.e. 9x,Me,NT,2000,XP; configuring the client to obtain an IP address from may be a bit different.

I hope this helps.

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General DHCP Question

by dshuang5858 In reply to General DHCP Question

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General DHCP Question

by ewgny In reply to General DHCP Question

The win2k DHCp Server most likely is a more robust DHCP Server than the firwall DHCP.
Many firewall DHCP servers are very basic and don't have features such as scope options, ability to make reservations etc. Also a very important feature is that the Win2k DHCP can register and unregister DNS records in the clients behalf.
I'll post some links for you when I get to my other PC

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General DHCP Question

by dshuang5858 In reply to General DHCP Question

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General DHCP Question

by curlergirl In reply to General DHCP Question

I would think the two most important advantages of running DHCP on a Win2K server rather than the router would be: 1) the Win2K server has more robust management capabilities like reserving IP addresses within the scope for certain hosts; automatic assignment of DNS, WINS and router addresses as well as many other options by scope; automatically assigning IP addresses and other scope options to RAS clients, etc.; and 2) the Win2K DHCP server has the ability to do dynamic DNS registration of theIP addresses of the hosts on your network - and this means that you (almost) never have to go into DNS and manually add a host (A) record. I said "almost" because if you have older workstations (NT, Win9x/Me), the dynamic registration might not work (even though Microsoft says it's supposed to, I haven't been able to get it to work with many older machines).

Hope this helps!

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General DHCP Question

by dshuang5858 In reply to General DHCP Question

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General DHCP Question

by SpongeBob_SquarePants In reply to General DHCP Question

Another reason to do it on your server is that you will not overburden your router. Especially if your router is running ACL to provide network security.

One other thing to consider in your decision is whether or not you need to span multiple subnets and if you are using a multi-homed server. If not you may need to install DHCP relay agents on each subnet to provide a "pointer" to the DHCP server.

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General DHCP Question

by dshuang5858 In reply to General DHCP Question

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General DHCP Question

by dshuang5858 In reply to General DHCP Question

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