Q: Sorry for the title, but I can see my problem is not short enough for the title. Heres the problem, I have two computers in my dorm room connected to a hub to the network jack in my room. The computers get DHCP addresses from my college, and through the wonders of their network, the computers are on different subnets (do not ask how I worked out). Anyways, the problem is that computers do not seem to realize that the other computer is connected to the hub. A trace route between them step with a hop to a router for my school. My question is, how can I fix this? I suppose it would transfer faster and things like that, but I can not explain how to do this in Linux (my one computer) figure, or Windows XP (the other). Any ideas?
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Re:As for getting new IPs, the IPs are bound to the MACs for the NIC on the DHCP Server, and they never change. But here's the ifconfig (for Linux) and ipconfig (for Windows) if that helps any. Thanks
Linux
eth1 Link encap:Ethernet HWaddr 00:A0:24:11:06:E9
inet addr:64.113.87.82 Bcast:64.113.87.127 Mask:255.255.255.128
UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
RX packets:3456364 errors:104 dropped:0 overruns:113 frame:104
TX packets:537131 errors:0 dropped:0 overruns:0 carrier:0
collisions:88785 txqueuelen:100
RX bytes:1240472800 (1183.0 Mb) TX bytes:337936184 (322.2 Mb)
Interrupt:5 Base address:0×220
Windows XP
Host Name . . . . . . . . . . . . : rainsford
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : stures.iastate.edu
Description . . . . . . . . . . . : Linksys LNE100TX(v5) Fast Ethernet Adapter
Physical Address. . . . . . . . . : 00-04-5A-40-C2-CD
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 64.113.86.88
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 64.113.86.254
DHCP Server . . . . . . . . . . . : 129.186.1.16
DNS Servers . . . . . . . . . . . : 129.186.1.200
129.186.142.200
129.186.140.200
Primary WINS Server . . . . . . . : 129.186.142.179
Secondary WINS Server . . . . . . : 129.186.142.189
Lease Obtained. . . . . . . . . . : Wednesday, February 27, 2002 12:46:24 PM
Lease Expires . . . . . . . . . . : Wednesday, March 13, 2002 12:46:24 PM
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Re:That begs the question: Why would a network have two DHCP servers running in the same network segment which give out Ips on different segments?
The chances are, you won't be able to modify the necessary routing tables as you'll need administrative rights to access them.
It's worth trying to get a new DHCP lease on one of the clients and hoping it is on the same subnet as the other one.
Type: Ipconfig /release at the command prompt to give up the lease
and: Ipconfig /renew to ask for a new lease.
it's worth a try…
Rene Molenaar – IT Consultancy & Teaching
Re:You are getting IP address from two separate networks via DHCP? Man sounds like a fubarred network to me. Or your campus is going through a address change.
Anyway you should be able to avoid the router hop by manipulating the routing table of your machines.
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Re:Give us a bit more information about the configuration – type ipconfig /all at each workstation, and post the results – there are too many things that could be going wrong for us to give you any useful advice…
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Re:I used to have a similar setup in my college dorm room… Although I didnt get different subnets for my computers. However I did also have the same problem with the computers going through a school router before before getting to the other computer when sending files.
But it never really bothered me enough to take the time to try and solve the problem.
This year I connected my computers through a router so i have my own private network in my room and dont have to worry about it.
something to check with your computers though– if you unhook the wire from the router that goes to the schools network (so just the two computers are hooked up to the hub) Then will they see eachother? Also- what kind of hub are you using?
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