From: "Glenn Meadows" 

I'll bet his DSL router is doing the blocking internally.

I recall setting up a friends system, and the IP address offered to the
DLink Wireless router, was a 192.168.x.x number, and not a public number.
It appeared that his "DSL Router" was also a firewall, that was
configured by Bell South to block lots of things by default, as well as
doing NAT, and not offering a public IP address to his internal systems.

--

Glenn M.
"Mike N."  wrote in message
news:0i7cc2hqte2mh136h56j6d5iuqkhqbpt51{at}4ax.com...
> On Mon, 24 Jul 2006 19:45:31 -0700, Randall Parker
>

> wrote:
>
>>1) The problem is specific to the Barkto server. I do not see
>>performance problems with newsgroups.borland.com or news.microsoft.com.
>
> Geo:    There's something wrong with the ICMP handling in a router between
> you and me.  On both Windows and Linux, both sides request a Maximum
> Segment Size (MSS) upon connect.   In the middle of a stream, it suddenly
> reverts to minumum MTU (68 bytes), sending one character per packet.
> There
> are no ICMP messages from the Linux box, so it must be in the MTU / PMTU
> sequence.
>
>    Is there a firewall, or is news.barkto.com naked on the internet?
>
>    I can't ping news.barkto.com from here, or I could try a manual MTU
> discovery to see what gives.
>
>  [Randall, I'm on DSL - are you on DSL also?   The ATM packet size could
> have an effect on our problem]

--- BBBS/NT v4.01 Flag-5