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I'm having a strange problem here : I have an up-to-date Debian image running on coLinux with network access, but since I transfered it to a new laptop, impossible to reach it from the host with ssh PuTTY! Funny thing is that I still can reach it from the old laptop, PuTTY just gives me a warning that the cached host key doesn't match...
The problem is definitely between the localhost - up-to-date WindeXP SP2 - and the Debian coLinux :
- a Nmap scan from the localhost shows that port 22 is open on coLinux;
- network is set with pcap-bridge config, I can see the network, can even apt-get Debian (WinPcap-4.0.2);
- old laptop had an Intel Pro/100 VM nic, new laptop has a Broadcom NetLink Gigabit nic;
If anybody has any idea on what could cause it/how I could troubleshoot, paleez share the info!
This is a common problem.
A lot of people have success by disabling TCP checksum offloading on their network adapter.
since I didn't know about the issue I didn't know what to look for, but a quick search on "disabling TCP checksum offloading" and I agree it's quite common! :o)