Strange problem with connection between two hosts
Hello,
the problem is as follows: I have two boxes within local network - 'A' - CentOS 'B' - Debian they are part of the infrastructure, and all the network settings are made for them to see each other (or so I think). The problem is: STEP 1 : I go to 'A' and 'ping B' - no result, all packets are lost. STEP 2 : I go to 'B' and do 'ping A' - and everything fine, the connection works. STEP 3 : I go back to 'A' and do again 'ping B' - and this time - everything is ok and the connection works from this direction also. so, connection 'A->B' works only after successful connection 'B->A', and after some time of inactivity is lost. May be anyone will be able to explain this... as I've ran out of ideas.. thanks. |
Very strange. If you have the time, I would get a third computer to test. Put CentOS on it and see if the same thing happens. If it does, put Debian on it and try it again. If you still have the problem, try it with Debian to Debian, and CentOS to CentOS to try and narrow down the operating system with the problem.
|
Quote:
I actually have many boxes on the same network - all CentOS, and no such problems. But it was not I, who configured them, so, I thought may be I missed some configuration... though I searched everywhere already ... - this is networking - not may places to search .. but may be I managed to overlook something... |
So pinging from other CentOS computers to the Debian computer works? Is it just the one CentOS computer with the problem?
|
Quote:
|
pgrd, what are the IP addresses and netmasks of the two computers? And what are their routing tables set to?
Code:
/sbin/ifconfig; /sbin/route Alternatively, it could be a routing problem with IP update information not being refreshed somehow in the Ethernet layer? Are you able to try switching out hubs or switches at all? |
Quote:
About refreshing IPs ... may be ... I'm not able to switch hubs or change any hardware ... but I will look into this .. only - not sure how I can affect this .. |
All times are GMT -5. The time now is 07:59 PM. |