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Switch with DHCP

Z

zakelua

n00b
Joined
Aug 12, 2004
Messages
44
I'm looking for a switch that is capable of issuing IP addresses. I want to put this switch in between my firewall and ISP's router so I can hook guests up dirty outside my network. I have 30 IP addresses from my ISP and i want to use 5-8 of them for dirty dhcp addresses. Does anyone know of a switch that can do this. I need 16-24 ports. Gigabit would be nice. Anyone have any other ideas how how i could accomplish this?
 
What's your budget? You're looking at a layer 3 switch to get that kind of capability. It sounds like you may be looking for a router/firewall AND a switch.
 
Hopefully less than $1000.
I know i can get a cheap server to do it but i would prefer to have it built into a switch to minimize space and power requirements. I dont need firewall features.
 
why dont you let the isp handle the dhcp, like so...
modem-switch-router/firewall-pcs (private ips)
|__pc (pubilc ip)
|__pc (public ip)
|__pc (public ip)

edit: the formatting broke when I posted, but the 3 additional pcs plug directly into the switch.
 
I wanted them to but apparently Qwest fiber doesnt offer a DHCP service on the router they are installing.
 
so why a switch.. Why not a dmz port. Or firewall rules allowing only certain traffic to pass.

Beats having to mess with a l3 style device between you and qwest.
 
most cisco switches can achieve this for you. I have set up a similar configuration for a client using a catalyst 2960G-24 (24 port). This won't fit your $1000 budget thought :)
 
I didnt want to go the DMZ route because often times i need to test devices that truly sit outside our network. I was hoping there would be a switch or device other than a server that could do this but i guess i will just have to set up a simple server to issue DHCP. :-(
 
Last edited:
but if you have a device running dhcp, then it must also be doing nat to get those addresses onto the internet, if you truly want them to have an outside address with no network on your end, then you'll need a straight IP from the isp...
 
I do have a "Straight" IP address from my ISP. I have 30 of them. I actually already have a server now that does what i want..I just want to get it out of my server room.
 
You may want to check with your ISP and make sure they aren't going to get a little urked about you setting up your own dhcp server on the WAN. Might be pissing in someones breakfast and not know it. Personally I wouldn't put doing it this way. Going the DMZ route or having a l3 switch with a WAN Vlan setup and static ips would be a better route
 
calvinj said:
You may want to check with your ISP and make sure they aren't going to get a little urked about you setting up your own dhcp server on the WAN. Might be pissing in someones breakfast and not know it. Personally I wouldn't put doing it this way. Going the DMZ route or having a l3 switch with a WAN Vlan setup and static ips would be a better route
Click to expand...

QFT, static IP's and a spreadsheet, costs less than $1000 too :)
 
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