Networking DHCP questions and problems
I'm having trouble getting one of my suse 8.2 computers to ping a DHCPd computer on my network. I have a Speedstream 5861 DSL modem acting as the dhcp server. It's address is 192.168.200.254. I have it handing out numbers from 192.168.200.2 to 192.168.200.9. My winXP machine (devel2) is set to dhcp, it's numbers are assigned from the modem as follows: IP Address: 192.168.200.2 Subnet Mask: 255.255.0.0 Default Gateway: 192.168.200.254 DHCP Server: 192.168.200.254 Lease Obtained: 7/29/2003 1:29:15 PM Lease Expires: 8/5/2003 1:29:15 PM DNS Server: 192.168.200.254 WINS Server: 192.168.200.50 I have samba set up to be WINS server on what i call Lx1 (192.168.200.50 static assigned). I have another suse machine Lx10 (192.168.200.233 static assigned). The nameservers for both of these machines is set to the DSL modem 192.168.200.254. All computers get on network, and internet just fine. But, I can't get any of the linux computers to ping the winXP Devel2 computer that gets it's numbers by DHCP. What am I doing wrong. Network neighborhood, and nmblookups work good from any computer, but "ping devel2" from any of the linux computers doesn't work. Also, I have a printer on the network that is on a different subnet 192.168.170.1, so I set the netmask on the rest of the computers to 255.255.0.0, in order to get on that subnet. Is this bad, any security issues? Thanks, -- Chris Geske - LIMS Manager Northern Lake Service, Inc. lims@newnorth.net
On Tue, 29 Jul 2003, Chris Geske wrote:
I'm having trouble getting one of my suse 8.2 computers to ping a DHCPd computer on my network.
I have a Speedstream 5861 DSL modem acting as the dhcp server. It's address is 192.168.200.254.
I have it handing out numbers from 192.168.200.2 to 192.168.200.9.
My winXP machine (devel2) is set to dhcp, it's numbers are assigned from the modem as follows:
IP Address: 192.168.200.2 Subnet Mask: 255.255.0.0 Default Gateway: 192.168.200.254 DHCP Server: 192.168.200.254 Lease Obtained: 7/29/2003 1:29:15 PM Lease Expires: 8/5/2003 1:29:15 PM DNS Server: 192.168.200.254 WINS Server: 192.168.200.50
I have samba set up to be WINS server on what i call Lx1 (192.168.200.50 static assigned).
I have another suse machine Lx10 (192.168.200.233 static assigned).
The nameservers for both of these machines is set to the DSL modem 192.168.200.254.
All computers get on network, and internet just fine. But, I can't get any of the linux computers to ping the winXP Devel2 computer that gets it's numbers by DHCP.
What am I doing wrong.
The linux computer does not know that devel2 is 192.168.200.2 I bet that ping 192.168.200.2 works. If it does then you need to do EITHER (A) 1. fix 192.168.200.2 to a fixed MAC address on the DHCP server 2. put the following in /etc/hosts on the Linux boxes 192.168.200.2 devel2 OR (B) set up a DHCP-aware DNS server somewhere A is easy on small networks (I have it.) B is quite difficult (lots of man pages and security pitfalls)
Network neighborhood, and nmblookups work good from any computer, but "ping devel2" from any of the linux computers doesn't work.
Also, I have a printer on the network that is on a different subnet 192.168.170.1, so I set the netmask on the rest of the computers to 255.255.0.0, in order to get on that subnet. Is this bad, any security issues?
Can't think of any. I don't think you mean "on a different subnet" - subnets are connected by IP routers and you did not mention a router. You have done the right thing if the printer is connected to the other pcs by a hub or a bridge. You have actually built a big subnet that could contain all the 192.168.x.x addresses (if you had enough ethernet bridges) David
participants (2)
-
Chris Geske -
David