Re: CVS blocked or delayed from some IP ranges?

[Steven Bellovin <smb%cs.columbia.edu@localhost>]

On Dec 21, 2010, at 9:41 32AM, Frank Wille wrote:

> Hi,
> 
> has anybody else using the german T-Online DSL provider problems with the
> NetBSD CVS servers?
> 
> Nearly every second day CVS connections seem to be completely blocked:
> 
> $ cvs -d:pserver:anoncvs%anoncvs.netbsd.org@localhost:/cvsroot checkout src
> cvs [checkout aborted]: connect to anoncvs.netbsd.org:2401 failed: Connection 
> timed out
> 
> On other days it is very slow, and takes up to 20 seconds until the
> server responds.
> 
> I checked two other providers and there were no problems at exactly the
> same time, and the server is responding immediately.
> 
> Both, cvs.netbsd.org and anoncvs.netbsd.org, are affected. But I can login
> using ssh on other NetBSD machines (e.g. ftp.netbsd.org).
> 
> Seems like cvs.netbsd.org is blocking some addresses? For example, in this
> moment my address 84.135.32.167 seems blocked...

What does traceroute show?  Do you have v6 connectivity?

                --Steve Bellovin, http://www.cs.columbia.edu/~smb