<html><body bgcolor="#FFFFFF"><div>Confirmed. Very annoying. Customers unable to do payroll!!!<br><br>On 12/03/2010, at 15:03, "Craig Meyers" <<a href="mailto:Craig.Meyers@citec.com.au">Craig.Meyers@citec.com.au</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2">The easy solution to fix multiple connections for MTU
issues, is to add "ip tcp adjust-mss blah" if cisco kit on a 'central-ish'
device, where blah is somewhere between 536 and 1460 depnding on the solar flare
count of the day.</font></span></div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2"></font></span> </div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2">What it does is that on SYN/SYN-ACK exchange it modifies
the MSS option in the TCP packet to force both ends of the conversation to use
lower size packets. Thereby negating the deal to modify MTU on kit you may/may
not manage inbetween.</font></span></div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2"></font></span> </div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2">I know it's a hack, but hey if
desperate...</font></span></font></span></div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2"></font></span> </div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2">-- Craig Meyers</font></span></div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2"></font></span> </div>
<div dir="ltr" align="left"><span class="246575503-12032010"><font face="Arial" color="#0000ff" size="2"></font></span> </div><br>
<div class="OutlookMessageHeader" lang="en-us" dir="ltr" align="left">
<hr tabindex="-1">
<font face="Tahoma" size="2"><b>From:</b> <a href="mailto:ausnog-bounces@lists.ausnog.net">ausnog-bounces@lists.ausnog.net</a>
[mailto:ausnog-bounces@lists.ausnog.net] <b>On Behalf Of </b>Justin
Twiss<br><b>Sent:</b> Tuesday, 9 March 2010 1:10 PM<br><b>To:</b>
<a href="mailto:ausnog@lists.ausnog.net"><a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a></a><br><b>Subject:</b> [AusNOG] Are there any other
providers who use M2 as an upstream having issues with SSL based
websites?<br></font><br></div>
<div></div>
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<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'">If
so, please contact me off-list – As far as I’m concerned, M2’s response of ‘get
your customers to change the MTU on their routers down to 1400’ really isn’t
acceptable and this apparently has been on-going since Thursday. (SSL
based websites in particular, banking websites – we’ve had reports of clients
unable to access/successfully log in to almost every major bank in Australia so
far)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'">(Just
glad they’re not our only upstream provider!)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="FONT-SIZE: 9.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'"><o:p> </o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><b><span style="FONT-SIZE: 10pt; COLOR: #14294f; FONT-FAMILY: 'Verdana','sans-serif'">Justin
Twiss</span></b><span style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 'Times New Roman','serif'"><br></span><span style="FONT-SIZE: 10pt; COLOR: #7d7d7d; FONT-FAMILY: 'Verdana','sans-serif'">Hosting
Manager</span><span style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 'Times New Roman','serif'"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><span style="FONT-SIZE: 7.5pt; COLOR: #7d7d7d; FONT-FAMILY: 'Verdana','sans-serif'">Bekkers,
884 Beaufort Street, Inglewood, WA, 6052<br><b>Telephone:</b> +618 9422
6777<br><b>Mobile: </b>0405 555 044</span><span style="FONT-SIZE: 8pt; COLOR: #7d7d7d; FONT-FAMILY: 'Verdana','sans-serif'"><br></span><b><span style="FONT-SIZE: 7.5pt; COLOR: #7d7d7d; FONT-FAMILY: 'Verdana','sans-serif'">Facsimile:</span></b><span style="FONT-SIZE: 7.5pt; COLOR: #7d7d7d; FONT-FAMILY: 'Verdana','sans-serif'">
+618 9272 6625<br><u><a title="Click to send email to Justin Twiss" href="mailto:Justin.Twiss@bekkers.com.au"><span style="COLOR: #7d7d7d">Justin.Twiss@bekkers.com.au</span></a></u> | <u><a title="Click to visit our website" href="http://www.bekkers.com.au"><span style="COLOR: #7d7d7d">www.bekkers.com.au</span></a></u></span><span style="FONT-SIZE: 8pt; COLOR: #7d7d7d; FONT-FAMILY: 'Verdana','sans-serif'"><o:p></o:p></span></p></td>
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