identifying all ip addresses on my network

[drojman]

I have a home network and need to identify what all the ip addresses are, from one computer. how do you do this?
The reason is i need to open a port on my router for my xbox live, but can't cause I don't know it's ip address cause it doesn't show me it.
thanks,,,

[vass0922]

Do you have DHCP turned on from the router? How does it get its IP?
If its a Linksys router you can see what IP's have been given.

[drojman]

I have a netgear rt338 isdn router.. and dhcp is turned on

[vass0922]

Check around the router settings, it should have a way to list the IP table of all IP's its assigned.

We can tell which IP our x-box is on. I take it you haven't put a mod chip in yours or anything?

[krohnjw]

Depending on what type of filtering, or if there are switches try sending a directted broadcast.

What is your IP of that computer and your subnet mask?
if it is
192.168.0.x
255.255.255.0
Then a broadcast would be 192.168.0.255
so
ping 192.168.0.255 from the command prompt

All computers that this packet reaches should respond with an ICMP packet with their IP. You could also check the local arp table to see if you happen to have them cached in there from communications with them.

arp -a I believe it is in windows from the command prompt.

Jkrohn

[drojman]

no mod chip...
i tried the ping 192.168.0.255 but the request timed out

xbox says it detects network and ip, but won't connect to xbox live and doesn't show up on my network either..

kinda wierd

[Siliconjunkie]

Use a port scanner, a good free one is SuperScan from Foundstone at http://www.foundstone.com/resources/scanning.htm . You can use it to ping a range of IPs and give you a list of which respond.

[goldenbuddha]

If your settings are default, then the following apply

Netgear DHCP pool starts at 192.168.0.1 (that is the netgear) so in that sense, any other connected devices will be 192.168.0.2 and up.

Not sure if your Netgear has the feature to "show attached devices" or "show dhcp clients" but thats where you can find connected devices and their current IPs

[drojman]

thanks, that did the trick