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<DIV><FONT color=#0000ff face=Verdana>Hi Sirs,</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Verdana>Only add mtu= in the conn as below.It did 
not seem to work.</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana>I try to ping peer site ipsec router from 
our lan site pc.(test environment&nbsp;as below) </FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana>ping -l 1200 195.168.11.X </FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana>And try to capture wan site packet to 
check.</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana>I found the packet size always keep on 
12XX.It did not seem to fragment the packet.</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Verdana>Do you have&nbsp;any suggestions on this 
question??Thank's.</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana>And Sorry for my poor 
English.</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Verdana>config 
setup<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
nat_traversal=no<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
oe=off<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
protostack=netkey<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
interfaces=%defaultroute</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Verdana>conn 
test<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
left=182.16.23.74<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
leftsubnet=195.168.12.0/24<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
rightsubnet=195.168.11.0/24<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
connaddrfamily=ipv4<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
right=182.16.23.108<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
ike=3des-md5;modp1024<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
ikelifetime=480m<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
type=tunnel<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
salifetime=60m<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
phase2alg=3des-hmac_md5<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
pfs=no<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
phase2=esp<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
mtu=1000<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
keyexchange=ike<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
authby=secret<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
auto=add</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana></FONT>&nbsp;</DIV>
<DIV><FONT color=#0000ff face=Verdana>peer ipsec------(wan site 
182.16.23.X)--------openswan-------(lan site 
195.168.12.X)--------pc</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana>&nbsp;</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana>Best Regards,</FONT></DIV>
<DIV><FONT color=#0000ff face=Verdana>Ozai</FONT></DIV>
<BLOCKQUOTE 
style="BORDER-LEFT: #0000ff 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
  <DIV style="FONT: 10pt &#26032;&#32048;&#26126;&#39636;">----- Original Message ----- </DIV>
  <DIV 
  style="FONT: 10pt &#26032;&#32048;&#26126;&#39636;; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> 
  <A title=letoams@gmail.com href="mailto:letoams@gmail.com">Leto</A> </DIV>
  <DIV style="FONT: 10pt &#26032;&#32048;&#26126;&#39636;"><B>To:</B> <A title=n1ck.h0w1tt@gmail.com 
  href="mailto:n1ck.h0w1tt@gmail.com">Nick Howitt</A> </DIV>
  <DIV style="FONT: 10pt &#26032;&#32048;&#26126;&#39636;"><B>Cc:</B> <A title=users@lists.openswan.org 
  href="mailto:users@lists.openswan.org">users@lists.openswan.org</A> </DIV>
  <DIV style="FONT: 10pt &#26032;&#32048;&#26126;&#39636;"><B>Sent:</B> Friday, September 13, 2013 12:20 
  AM</DIV>
  <DIV style="FONT: 10pt &#26032;&#32048;&#26126;&#39636;"><B>Subject:</B> Re: [Openswan Users] Set MTU on 
  netkey</DIV>
  <DIV><FONT color=#0000ff size=2 face=Verdana></FONT><FONT color=#0000ff size=2 
  face=Verdana></FONT><BR></DIV>
  <DIV>no. overridemtu= is klips only and works on the ipsecX interface. mtu= is 
  passed via _updown to ip route - works on all stacks&nbsp;<BR><BR>sent from a 
  tiny device&nbsp;</DIV>
  <DIV><FONT color=#0000ff size=2 face=Verdana></FONT><FONT color=#0000ff size=2 
  face=Verdana></FONT><BR>On 2013-09-12, at 9:27, Nick Howitt &lt;<A 
  href="mailto:n1ck.h0w1tt@gmail.com">n1ck.h0w1tt@gmail.com</A>&gt; 
  wrote:<BR><BR></DIV>
  <BLOCKQUOTE type="cite">
    <DIV>
    <P>Isn't mtu on the conn in klips only? Not netkey.</P>
    <P>On 2013-09-12 14:18, Leto wrote:</P>
    <BLOCKQUOTE 
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    type="cite"><!-- html ignored --><!-- head ignored --><!-- meta ignored -->
      <DIV>mtu= in the conn should do that<BR><BR>sent from a tiny 
      device&nbsp;</DIV>
      <DIV><BR>On 2013-09-12, at 3:00, "Ozai" &lt;<A 
      href="mailto:ozai.tien@gmail.com">ozai.tien@gmail.com</A>&gt; 
      wrote:<BR><BR></DIV>
      <BLOCKQUOTE 
      style="BORDER-LEFT: #1010ff 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px" 
      type="cite">
        <DIV><!-- meta ignored -->
        <DIV>
        <DIV><SPAN 
        style="FONT-FAMILY: Verdana; COLOR: #0000ff; FONT-SIZE: small">Dear 
        Sirs,</SPAN></DIV>
        <DIV><SPAN 
        style="FONT-FAMILY: Verdana; COLOR: #0000ff; FONT-SIZE: small"></SPAN>&nbsp;</DIV>
        <DIV><SPAN 
        style="FONT-FAMILY: Verdana; COLOR: #0000ff; FONT-SIZE: small">How do I 
        set the mtu for the IPSec tunnel?My test environment&nbsp;is 
        openswan&nbsp;2.6.38 with embedded linux and protostack is 
        netkey.iptables??Can someone point me in&nbsp;the right 
        direction?Thank's.</SPAN></DIV>
        <DIV><SPAN 
        style="FONT-FAMILY: Verdana; COLOR: #0000ff; FONT-SIZE: small"></SPAN>&nbsp;</DIV>
        <DIV><SPAN 
        style="FONT-FAMILY: Verdana; COLOR: #0000ff; FONT-SIZE: small">Best 
        Regards,</SPAN></DIV>
        <DIV><SPAN 
        style="FONT-FAMILY: Verdana; COLOR: #0000ff; FONT-SIZE: small">Ozai</SPAN></DIV></DIV></DIV></BLOCKQUOTE>
      <BLOCKQUOTE 
      style="BORDER-LEFT: #1010ff 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px" 
      type="cite">
        <DIV><SPAN>_______________________________________________</SPAN><BR><SPAN><A 
        href="mailto:Users@lists.openswan.org">Users@lists.openswan.org</A></SPAN><BR><SPAN><A 
        href="https://lists.openswan.org/mailman/listinfo/users">https://lists.openswan.org/mailman/listinfo/users</A></SPAN><BR><SPAN>Micropayments: 
        <A 
        href="https://flattr.com/thing/38387/IPsec-for-Linux-made-easy">https://flattr.com/thing/38387/IPsec-for-Linux-made-easy</A></SPAN><BR><SPAN>Building 
        and Integrating Virtual Private Networks with 
        Openswan:</SPAN><BR><SPAN><A 
        href="http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155">http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155</A></SPAN></DIV></BLOCKQUOTE><!-- html ignored --><BR><PRE>_______________________________________________
<A href="mailto:Users@lists.openswan.org">Users@lists.openswan.org</A>
<A href="https://lists.openswan.org/mailman/listinfo/users">https://lists.openswan.org/mailman/listinfo/users</A>
Micropayments: <A href="https://flattr.com/thing/38387/IPsec-for-Linux-made-easy">https://flattr.com/thing/38387/IPsec-for-Linux-made-easy</A>
Building and Integrating Virtual Private Networks with Openswan:
<A href="http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155">http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155</A>
</PRE></BLOCKQUOTE></DIV></BLOCKQUOTE>
  <BLOCKQUOTE type="cite">
    <DIV><SPAN>_______________________________________________</SPAN><BR><SPAN><A 
    href="mailto:Users@lists.openswan.org">Users@lists.openswan.org</A></SPAN><BR><SPAN><A 
    href="https://lists.openswan.org/mailman/listinfo/users">https://lists.openswan.org/mailman/listinfo/users</A></SPAN><BR><SPAN>Micropayments: 
    <A 
    href="https://flattr.com/thing/38387/IPsec-for-Linux-made-easy">https://flattr.com/thing/38387/IPsec-for-Linux-made-easy</A></SPAN><BR><SPAN>Building 
    and Integrating Virtual Private Networks with Openswan:</SPAN><BR><SPAN><A 
    href="http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155">http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155</A></SPAN><BR></DIV></BLOCKQUOTE>
  <P>
  <HR>

  <P></P>_______________________________________________<BR>Users@lists.openswan.org<BR>https://lists.openswan.org/mailman/listinfo/users<BR>Micropayments: 
  https://flattr.com/thing/38387/IPsec-for-Linux-made-easy<BR>Building and 
  Integrating Virtual Private Networks with 
  Openswan:<BR>http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155<BR></BLOCKQUOTE></BODY></HTML>