network problems?

[Krassimir Slavchev]

Hello,

The problem is when I try to access ftp servers, the connection stalls 
randomly. Also I can't do cvsup and fetch.
This happens only with machines running -current and when the traffic is 
passed through router based on FreeBSD 4.4. One of the test machines is 
my notebook which have installed 7.0-CURRENT (from today) and 5.4-STABLE 
and I see this problem only with -current.

Is there any new features in -current tcp stack which may be 
incompatible with FreeBSD 4.x?

Best Regards