You might be aware of my problem with my
dsl service. Earthlink appears to be unable to figure out what's
going on. Some networks I have trouble with. When a problem
shows itself, the entire connection stalls. This affects anything
coming in, even if it's from a site I normally don't have trouble
with.
Tonight I went to speakeasy.net/speedtest and started tcpdump,
saving it's output to a text file. Then I clicked on Seattle
which is certain to make the problem show itself. Here http://home.earthlink.net/~azspamhater/tcpdump.zip
is the output of tcpdump from when I started it to when I stopped
it right after the speed test told me the download test was
complete.
Here's
the bit from tcpdump's output when the connection stalled. Can
someone who understands this stuff please tell me what it
means? Thanks.
17:58:49.905583 IP speedtest1.sea1.speakeasy.net.http >
ladmo.local.52510: Flags [P.], seq 2194256:2195708, ack 1663, win
18, length 1452
17:58:49.905619 IP ladmo.local.52510 >
speedtest1.sea1.speakeasy.net.http: Flags [.], ack 2195708, win
2746, length 0
17:58:49.907204 IP speedtest1.sea1.speakeasy.net.http >
ladmo.local.52510: Flags [.], seq 2195708:2197160, ack 1663, win
18, length 1452
17:58:49.907223 IP ladmo.local.52510 >
speedtest1.sea1.speakeasy.net.http: Flags [.], ack 2197160, win
2746, length 0
17:58:49.908925 IP speedtest1.sea1.speakeasy.net.http >
ladmo.local.52510: Flags [.], seq 2197160:2198612, ack 1663, win
18, length 1452
17:58:59.951180 IP ladmo.local.57596 > 208.89.14.135.http:
Flags [P.], seq 759:1518, ack 656, win 449, options [nop,nop,TS
val 1877621 ecr 35320756], length 759
17:59:04.106337 IP ladmo.local.57596 > 208.89.14.135.http:
Flags [P.], seq 759:1518, ack 656, win 449, options [nop,nop,TS
val 1878660 ecr 35320756], length 759
17:59:05.754345 IP ladmo.local.58967 > www.speakeasy.net.http:
Flags [F.], seq 0, ack 1, win 14600, length 0
17:59:06.330355 IP ladmo.local.58965 > www.speakeasy.net.http:
Flags [F.], seq 0, ack 1, win 14600, length 0
17:59:06.330379 IP ladmo.local.58966 > www.speakeasy.net.http:
Flags [F.], seq 0, ack 1, win 14600, length 0
17:59:06.971330 IP speedtest1.sea1.speakeasy.net.http >
ladmo.local.52509: Flags [F.], seq 4714197, ack 1663, win 18,
length 0
17:59:06.971477 IP ladmo.local.52509 >
speedtest1.sea1.speakeasy.net.http: Flags [F.], seq 1663, ack
4714198, win 3880, length 0
17:59:07.069553 IP speedtest1.sea1.speakeasy.net.http >
ladmo.local.52509: Flags [.], ack 1664, win 18, length 0
17:59:07.301398 IP 208.89.14.135.http > ladmo.local.57596:
Flags [P.], seq 656:1311, ack 1518, win 65535, options [nop,nop,TS
val 35320926 ecr 1877621], length 655
17:59:07.338338 IP ladmo.local.57596 > 208.89.14.135.http:
Flags [.], ack 1311, win 449, options [nop,nop,TS val 1879468 ecr
35320926], length 0
17:59:12.186868 IP ladmo.local.1946 >
google-public-dns-a.google.com.domain: 13696+ A?
safebrowsing.clients.google.com. (49)
17:59:12.186946 IP ladmo.local.46494 >
google-public-dns-a.google.com.domain: 26657+ AAAA?
safebrowsing.clients.google.com. (49)
17:59:12.212699 IP google-public-dns-a.google.com.domain >
ladmo.local.46494: 26657 2/0/0 CNAME clients.l.google.com., AAAA
2607:f8b0:4002:c03::8a (101)
17:59:12.216466 IP google-public-dns-a.google.com.domain >
ladmo.local.1946: 13696 7/0/0 CNAME clients.l.google.com., A
74.125.139.101, A 74.125.139.138, A 74.125.139.100, A
74.125.139.102, A 74.125.139.113, A 74.125.139.139 (169)
17:59:12.216871 IP ladmo.local.43387 >
yn-in-f101.1e100.net.http: Flags [S], seq 1798380354, win 14600,
options [mss 1460,sackOK,TS val 1880687 ecr 0,nop,wscale 7],
length 0
17:59:12.217090 IP ladmo.local.21285 >
google-public-dns-a.google.com.domain: 4915+ PTR?
101.139.125.74.in-addr.arpa. (45)
17:59:12.239935 IP yn-in-f101.1e100.net.http >
ladmo.local.43387: Flags [S.], seq 1335524793, ack 1798380355, win
62392, options [mss 1430,sackOK,TS val 272995390 ecr
1880687,nop,wscale 6], length 0
17:59:12.240004 IP ladmo.local.43387 >
yn-in-f101.1e100.net.http: Flags [.], ack 1, win 115, options
[nop,nop,TS val 1880693 ecr 272995390], length 0
17:59:12.240185 IP ladmo.local.43387 >
yn-in-f101.1e100.net.http: Flags [P.], seq 1:987, ack 1, win 115,
options [nop,nop,TS val 1880693 ecr 272995390], length 986
17:59:12.242608 IP google-public-dns-a.google.com.domain >
ladmo.local.21285: 4915 1/0/0 PTR yn-in-f101.1e100.net. (79)
17:59:12.279548 IP yn-in-f101.1e100.net.http >
ladmo.local.43387: Flags [.], ack 987, win 1002, options
[nop,nop,TS val 272995430 ecr 1880693], length 0
17:59:12.282125 IP yn-in-f101.1e100.net.http >
ladmo.local.43387: Flags [P.], seq 1:370, ack 987, win 1002,
options [nop,nop,TS val 272995432 ecr 1880693], length 369
17:59:12.282150 IP ladmo.local.43387 >
yn-in-f101.1e100.net.http: Flags [.], ack 370, win 123, options
[nop,nop,TS val 1880703 ecr 272995432], length 0
--
"I get my copy of the daily paper, look at the obituaries page, and if I’m not there, I carry on as usual."
Patrick Moore