Experiencing very slow browsing at times (atheros wireless)

Matthew Dillon dillon at apollo.backplane.com
Tue May 22 20:29:11 PDT 2007

:It was run on the client. is my DF workstation which i ran 
:tcpdump on. is my server (punchyouremployer.com). 
: is my default gateway, is my public IP. 
:There is DMZ configured on the router pointing to

    There's something very not right.  If tcpdump was run on your
    client then the client DID receive the big packets, but didn't
    ack them.  WTF ?  Why isn't it acking them?

    Maybe there is a checksum problem or something.  Do you have any
    hardware accel features turned on on your client?  Do 'ifconfig' and
    dump the output.  Try turning them off.

    Maybe also try turning off TCP sack and window scaling
    (net.inet.tcp.sack=0, net.inet.tcp.rfc1323=0), in case there's an
    issue there.  I noticed that the server is using both, and there
    could be a bug on the server (or in DragonFly, but more likely on the
    server if that turns out to be the problem).

					Matthew Dillon 
					<dillon at backplane.com>

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