3Com Switch 2952-SFP Plus Inter vlan comunication

hello,
we have bought 3 3com Baseline Switches 2952-SFP Plus, and we have configured them in stack mode.
my question is as following:
1- i want to devide the segments in to 4 vlans. what could be the possibilities of the vlans addresses( Vlan1 should be 10.100.5.0/24) what about the rest.
2- how can i configure Inter Vlan comunication in this switches ? as the document provided with the switch doesnt really crarify how to do that. Step by step guide is highly appreciated.
3- how to configure DHCP relay ( is there nay further options to configure for a Windows 2003 server to act as a DHCP server, is there any thing i should do/add in the Switches configurations?

Regards
stalliondzAsked:
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Rick_O_ShayCommented:
1. If you are managing the IP addresses for the entire enterprise you can use any of the private addresses subnetted to suit your needs. So 10.100.6.0/24, 10.100.7.0/24,and 10.100.8.0/24 would be a good set assuming /24 is enough for your VLANs.
Private addresses are:
10.0.0.0 – 10.255.255.255
172.16.0.0 – 172.31.255.255
192.168.0.0 – 192.168.255.255

2. To route amongst VLANs on a layer 2 switch like this you need to have an external router with a physical or logical interface in each VLAN. A router on a stick config is common  in this application with a single physical interface on the router connected via a tagged link to the switch. If that is the case here you would make a tagged subinterface for each address range and connect it to the switch on a port that is also tagged with each of your VLANs.

3. For DHCP relay you need to enable it globally, create a group with a list of the dhcp server addresses and enable it on each VLAN's IP interface you want it on.
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stalliondzAuthor Commented:
Thx for the reply
how can I create a group for dhcp servers ?? Any guide on that?
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stalliondzAuthor Commented:
Another issue, when creating the vlans and choosing the ports allocated for each vlan it asks me to choose if the port is Tagged or untaged! I'm not really a pro in this area, so wat should I choose! And the same thing for the vlan interface port should it be tagged or untagged!
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Rick_O_ShayCommented:
You would use untagged for any ports that go to non-network devices like PCs, Printers, and servers. Tagging would only be used on ports that go to a router with multiple subinterfaces and vlans configured or switch to switch links that have multiple VLANs.
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