TWO Laptops connected through Crossover cable but not pinging from both sides

[ashish7aditya]

Hi,

I have two laptops and have connected them through cat6 crossover cable(<2m).

I have assigned IPs from same subnet(10.1.1.1/8 & 10.1.1.2/8) . G.W is 10.1.1.10

One PC is able to ping other while second PC is not able to ping 1st PC(Req time out).

What possibly could be the issue?

I cleared DNS catch(ipconfig /flushdns). And after a while it start working.i.e. ping successful from either side. Was this the issue of catch only?

BR!

[Bilal Nawaz]

Usually with windows, it is possible windows firewall would have been blocking the ICMP requests. I don't think clearing the DNS cache would have solved the problem, unless you were ping'ing the hostname maybe?

The test would have been to check the arp cache on either PC to see if it had an entry for the other PC. or even a sniffer, like wireshark.

Bilal

[ashish7aditya]

Thanks everyone.

It is working fine after I run the cmd

#Netsh interface ip delete arpcache

BR!

[Arjun Sarkar]

Hello ,

 Can you please run wiresahark on both the Pcs and check if the ARP is build for non-workingn Pc.

Best RegardS

Arjun

[paul driver · Accepted solution]

Hello

Possibly they had old arp entrys and when these were refeshed you then could ping sucesssfully

Also you dont require default gateways within the same subnet for this example to work

res
Paul