Help setting up network

[MJB]

Originally Posted by Mags

Have you got the Windows XP firewall enabled on either of the machines? If so, this may be blocking the pings from getting through?

at the command prompt, immediately after typing the ping command, type arp -a. e.g, my machine is 192.168.1.100, if I ping 192.168.1.5 which exists on my network, I get the following -

E:\>arp -a

Interface: 192.168.1.100 --- 0x6
Internet Address Physical Address Type
192.168.1.5 00-a0-24-cb-d4-84 dynamic

If I ping 192.168.1.6 which doesn't, I get this -

E:\>arp -a

Interface: 192.168.1.100 --- 0x6
Internet Address Physical Address Type
192.168.1.6 00-00-00-00-00-00 invalid

Note the Physical address is all 0's and type is invalid

If you get the former and the ping isn't working, the most likely cause is you have a firewall on the machine

Mags

Both XP firewalls are OFF.

Not sure what you mean by the arp -a. I type in ping 192.168.1.105arp -a and get told it's a bad parameter????

[Aragorn]

Originally Posted by MJB

Both XP firewalls are OFF.

Not sure what you mean by the arp -a. I type in ping 192.168.1.105arp -a and get told it's a bad parameter????

It should be

ping 192.168.1.105
arp -a

(ie separate commands, one after the other)

HTH

[MJB]

OK I'm getting somewhere but how do I cut & paste info from the cmd prompt?

[SMHarman]

Originally Posted by Raistlin

I would STRONGLY suggest that you change this password as soon as you get a chance.

And write it on a sticky label and stick this to the router. This does not create a major security risk as if someone is standing next to the router all the wireless security in the world is not going to stop them plugging a piece of Cat 5 in the back of it.

[ian@huth]

Originally Posted by MJB

OK I'm getting somewhere but how do I cut & paste info from the cmd prompt?

You have first to mark the area that you want to copy. There is a button with a dotted sqare that you click then drag the white cursor over the area to copy. Then click the copy button.

[MJB]

OK! This is what I get: 102 is the laptop and 105 my main PC.


Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\M Boyt>ping 192.168.1.102
Pinging 192.168.1.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.1.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Documents and Settings\M Boyt>arp -a
Interface: 192.168.1.105 --- 0x2
Internet Address Physical Address Type
192.168.1.1 00-0c-41-9d-d3-48 dynamic
192.168.1.102 00-02-3f-34-39-82 dynamic
C:\Documents and Settings\M Boyt>ping 192.168.1.105
Pinging 192.168.1.105 with 32 bytes of data:
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Reply from 192.168.1.105: bytes=32 time<1ms TTL=128
Ping statistics for 192.168.1.105:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
C:\Documents and Settings\M Boyt>arp -a
Interface: 192.168.1.105 --- 0x2
Internet Address Physical Address Type
192.168.1.1 00-0c-41-9d-d3-48 dynamic
C:\Documents and Settings\M Boyt>

[Aragorn]

The second ping is a loopback - ie PC pinging itself. How about the laptop pinging PC?

Also, can you confirm from the ipconfig /all on the laptop that the MAC address 00-02-3f-34-39-82 is correct. If it is, something on the laptop is blocking the ping - usually a firewall!

Another thing to try on the laptop is ping 127.0.0.1 (a loopback test), and also try pinging the 'problem' laptop from the other laptop.

HTH

[MJB]

Sorted


I'd turned off the XP firewall but still had on the AntiVirus firewall

One more time, THANK YOU Aragorn and all. Very sincerely appreciated