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TCP Restransmission issue
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Topic: TCP Restransmission issue (Read 7471 times)
vlongjvc
Full Member
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Posts: 27
TCP Restransmission issue
«
on:
Monday 28 June 2010, 07:36:04 pm »
My EFW (ugrade from 2.3 -> 2.4), I have experienced with TCP Restransmission when I send e-mail via SMTP. Below is information I captured by Wireshark:
298 4.778294 222... 10.x.x.x SMTP S: 220 <mail server address> ESMTP Service ready
299 4.778602 10.x.x.x 222... SMTP C: EHLO <hostname>
301 4.780919 222... 10.x.x.x SMTP S: 250-<mail server address> | 250-DSN | 250-8BITMIME | 250-PIPELINING | 250-HELP | 250-AUTH=LOGIN | 250-AUTH LOGIN DIGEST-MD5 PLAIN | 250-DELIVERBY 300 | 250 SIZE 10000000
302 4.781492 10.x.x.x 222... SMTP C: AUTH LOGIN
303 4.783905 222... 10.x.x.x SMTP S: 334 VXNlcm5hbWU6
304 4.784190 10.x.x.x 222... SMTP C: anZsLWVuZw==
305 4.786455 222... 10.x.x.x SMTP S: 334 UGFzc3dvcmQ6
306 4.786715 10.x.x.x 222... SMTP C: bnR4N3JqZWk=
308 4.832619 222... 10.x.x.x SMTP S: 235 LOGIN authentication successful
309 4.834791 10.x.x.x 222... SMTP C: MAIL FROM: <my e-mail address>
310 5.054429 10.x.x.x 222... SMTP C: MAIL FROM: <my e-mail address>
320 5.960196 10.x.x.x 222... SMTP [TCP Retransmission] C: MAIL FROM: <jmy e-mail address>
513 8.376839 10.x.x.x 222... SMTP [TCP Retransmission] C: MAIL FROM: <my e-mail address>
775 13.101384 10.x.x.x 222... SMTP [TCP Retransmission] C: MAIL FROM: <my e-mail address>
1030 17.932648 10.x.x.x 222... SMTP [TCP Retransmission] C: MAIL FROM: <my e-mail address>
After ajust MTU to 1400 --> still have problem
After ajust MTU to default --> OK
But after that the same problem happened again.
Have anyone had this issue like me?
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