<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Tunga;
panose-1:2 11 5 2 4 2 4 2 2 3;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Tahoma",sans-serif;
color:#44546A;
font-weight:normal;
font-style:normal;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>In <b>StrongSwan Version 5.2.2.<o:p></o:p></b></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>We are facing problem in reaching traffic selectors when we use IPv6 TS(Single host IP) with /128 prefix BUT whereas when we use subnets, its working fine.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>Below is the kernel table output when we use /128 prefix for TS and with /120 prefix.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;color:black'>Failure case:<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'># ipsec status<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'>Security Associations (3 up, 0 connecting):<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'> tun1_sa1[1]: ESTABLISHED 3 minutes ago, 172.aa.yy.0[F830940152300008.iprc.nlt.in]...192.abc.ab.158[iprc.nlt.in]<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'> tun1_sa1{67108865}: INSTALLED, TUNNEL, ESP in UDP SPIs: c33c0cc0_i 0006ea56_o<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'> tun1_sa1{67108865}: fc01:eab:xx::xx/128 === fc01:eab:8:1::/120 <span style='background:yellow;mso-highlight:yellow'>fc01:eab:yy:1::x/128</span> fc01:eab:11:6::/120 fc01:eab:8:2::/120 fc01:eab:96:1::/120 fc01:eab:92:1::/120<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>Routing table entry looks like below:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>fc01:eab:97:1::7 dev eth1 table 220 proto static metric 1024 <b>>> no src ip</b><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>Success case:<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'># ipsec status<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'>Security Associations (3 up, 0 connecting):<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'> tun1_sa1[1]: ESTABLISHED 3 minutes ago, 172.aa.yy.0[F830940152300008.iprc.nlt.in]...192.abc.ab.158[iprc.nlt.in]<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'> tun1_sa1{67108865}: INSTALLED, TUNNEL, ESP in UDP SPIs: c33c0cc0_i 0006ea56_o<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'> tun1_sa1{67108865}: fc01:eab:xx::xx/128 === fc01:eab:8:1::/120 <span style='background:yellow;mso-highlight:yellow'>fc01:eab:yy:1::/120</span> fc01:eab:11:6::/120 fc01:eab:8:2::/120 fc01:eab:96:1::/120 fc01:eab:92:1::/120<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'>Routing table entry:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>fc01:eab:97:1::/120 dev eth1 table 220 proto static <b>src fc01:eab:xx:z::92</b> metric 1024 <b>>> src ip present<o:p></o:p></b></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>In failure we are not able to reach TS. Can you please let us know is this a limitation with <b>strongswan v5.2.2</b> OR is it a known bug ?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#44546A'>Sachin<o:p></o:p></span></p></div></body></html>