asked on

Cannot ping own IP

My server can ping other file and application servers. However, it cannot ping its own IP and router. I have MPTS and TCP/IP v.3 running on OS/2 Warp Connect 3.0.

Otta

What's the output from the OS/2 command:

netstat -r

???

Can other servers "ping" the router?

ASKER CERTIFIED SOLUTION

Otta

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

MokMok

ASKER

Adjusted points to 190

MokMok

ASKER

I tried 'ifconfig lo up', i executed it in the command line but i don't know what happened to my computer. can you explain what 'ifconfig lo up' does? thanks and regards.

Otta

'IFCONFIG LO UP'.

I(nter)
F(ace)
CONFIG(uration) utility to set the TCP/IP
LO(opback) interface into the
UP (not "down") status,
to enable TCP/IP "clients" and "servers" to communicate "internally",
rather than communicating to a different host.

Check the output from 'netstat -r'
both "before" and "after" the command.
Post both results here.

MokMok

ASKER

Before netstat (cannot ping ip anymore)

default router netmask
172.0.0.1 189.5.16.93 0.0.0.0
189.5.16 172.0.0.1 255.255.255.255
189.5.16 189.5.16.83 255.255.255.0
189.5.16.83 189.5.16.93 255.255.255.0
189.5.16.93 189.5.16.93 255.255.255.255
189.61.10.226 189.5.16.93 255.255.255.255

After netstat the same data

Otta

> 189.5.16.83
> 189.5.16.93
> 255.255.255.0

Are you sure about this line?
'83' versus '93' ???

> 172.0.0.1 189.5.16.93 0.0.0.0

Are you sure that it is '172' ?

After rebooting, try 'ifconfig lo'.
What is the output?

MokMok

ASKER

172 should be 127....

after rebooting the pc, it gives me...
default router netmask
default 189.5.16.93 0.0.0.0
127.0.0.1 127.0.0.1 255.255.255.255
189.5.16 189.5.16.93 255.255.255.0
189.5.16 189.5.16.93 255.255.255.0

Otta

What's the output from:

netstat -a ...and... ifconfig lan0

???