{"id":350,"date":"2009-12-23T16:47:15","date_gmt":"2009-12-23T16:47:15","guid":{"rendered":"https:\/\/fir3netwp.gmsrrpobkbd.com\/2009\/12\/23\/troubleshooting-a-netscreen-site-2-site-vpn\/"},"modified":"2023-01-15T22:50:14","modified_gmt":"2023-01-15T22:50:14","slug":"troubleshooting-a-netscreen-site-2-site-vpn","status":"publish","type":"post","link":"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html","title":{"rendered":"Troubleshooting a Netscreen Site 2 Site VPN"},"content":{"rendered":"<p style=\"background-color: #ffffff;\">In this example we will run through various steps to troubleshoot a Site 2 Site VPN.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-662dda82099a5\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-662dda82099a5\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html\/#Confirm_General_Details\" title=\"Confirm General Details\">Confirm General Details<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html\/#Confirm_Phase_1\" title=\"Confirm Phase 1\">Confirm Phase 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html\/#Confirm_Phase_2\" title=\"Confirm Phase 2\">Confirm Phase 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html\/#Running_a_Debug\" title=\"Running a Debug\">Running a Debug<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html\/#Event_Logs\" title=\"Event Logs\">Event Logs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html\/#Rekey_the_VPN\" title=\"Rekey the VPN \">Rekey the VPN <\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Confirm_General_Details\"><\/span><strong>Confirm General Details<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This will give us a general overview of our vpn.<\/p>\n<pre class=\"prettyprint\">netscreen(M)-&gt; get vpn\r\nName\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Gateway\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Mode RPlay 1st Proposal\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Monitor Use Cnt Interface\r\n--------------- --------------- ---- ----- -------------------- ------- ------- ----------\r\nsitea_vpn\u00a0\u00a0 sitea\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tunl Yes\u00a0\u00a0 g2-esp-3des-sha\u00a0\u00a0\u00a0\u00a0\u00a0 off\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 eth5\r\nsiteb_vpn\u00a0\u00a0 siteb\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tunl Yes\u00a0\u00a0 g2-esp-3des-sha\u00a0\u00a0\u00a0\u00a0\u00a0 off\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2 eth5\r\nsitec_vpn\u00a0\u00a0 sitec\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tunl Yes\u00a0\u00a0 g2-esp-3des-sha\u00a0\u00a0\u00a0\u00a0\u00a0 off\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 eth5\r\nsited_vpn\u00a0\u00a0 sited\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tunl Yes\u00a0\u00a0 g2-esp-3des-sha\u00a0\u00a0\u00a0\u00a0\u00a0 off\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 eth5<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"Confirm_Phase_1\"><\/span><strong>Confirm Phase 1<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To confirm whether IKE has been successful you can run the following command. You may find though that there is no IKE cookie but there is a Phase 2 Security Assicoation. This is due to the Phase 1 IKE lifetime being set to a value less then the IKE Phase 2 lifetime. <a href=\"http:\/\/kb.juniper.net\/KB9026\">You can find additional details here.<\/a><\/p>\n<pre class=\"prettyprint\">netscreen(M)-&gt; get ike cookie | i [remote peer ip]\r\n80522f\/0003, [local peer]:500-&gt;[remote peer]:500, PRESHR\/grp2\/AES256\/SHA, xchg(5) (Example\/grp-\r\n1\/usr-1)<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"Confirm_Phase_2\"><\/span><strong>Confirm Phase 2<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>From the get sa command you can see the status and various details of the Security Assiociations. The section below which is highlighted in bold shows the status of the vpn tunnel (left) and the status of the VPN monitor (right). In this case the VPN tunnel is active and the VPN monitor is dashed out as it isnt enabled.<\/p>\n<pre class=\"prettyprint\">netscreen(M)-&gt; get sa | i [peer ip]\r\n00000007&lt;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 [peer ip]\u00a0 500 esp:3des\/md5\u00a0\u00a0zbcA14zz\u00a0 3317 unlim A\/-\u00a0\u00a0\u00a0 22 0\r\n00000007&gt;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 [peer ip]\u00a0 500 esp:3des\/md5\u00a0 fbcb64ee\u00a0 3317 unlim A\/-\u00a0\u00a0\u00a0 -1 0<\/pre>\n<p>Using the SA ID we can confirm additional details of the Phase 2 SA.<\/p>\n<pre class=\"prettyprint\">netscreen(M)-&gt; get sa id 0x00000007\r\nindex 49, name Example, peer gateway ip [remote peer]. vsys&lt;Root&gt;\r\nauto key. policy node, tunnel mode, policy id in:&lt;10104&gt; out:&lt;10103&gt; vpngrp:&lt;-1&gt;. sa_list_nxt:&lt;-1&gt;.\r\ntunnel id 662, peer id 52, NSRP Active. Vsd 0\u00a0\u00a0 site-to-site. Local interface is ethernet5 \r\n&lt;[local peer]&gt;.\r\n\u00a0 esp, group 0, a256 encryption, sha1 authentication\r\n\u00a0 autokey, IN active, OUT active\r\n\u00a0 monitor&lt;0&gt;, latency: 0, availability: 0\r\n\u00a0 DF bit: clear\r\n\u00a0 app_sa_flags: 0x2067\r\n\u00a0 proxy id: local 0.0.0.0\/0.0.0.0, remote 0.0.0.0\/0.0.0.0, proto 0, port 0\r\n\u00a0 ike activity timestamp: 590051543\r\nnat-traversal map not available\r\nincoming: SPI 9j32882e, flag 00004000, tunnel info 40000296, pipeline\r\n\u00a0 life 86400 sec, 19761 remain, 0 kb, 0 bytes remain\r\n\u00a0 anti-replay on, last 0xb6840, window 0xffffffff, idle timeout value &lt;0&gt;, idled 0 seconds\r\n\u00a0 next pak sequence number: 0x0\r\noutgoing: SPI 7bz2a942, flag 00000000, tunnel info 40000296, pipeline\r\n\u00a0 life 86400 sec, 19761 remain, 0 kb, 0 bytes remain\r\n\u00a0 anti-replay on, last 0x0, window 0x0, idle timeout value &lt;0&gt;, idled 0 seconds\r\n\u00a0 next pak sequence number: 0x89j9c<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"Running_a_Debug\"><\/span><strong>Running a Debug<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Here we will run a debug so we can obtain a more verbose view of what is happening to our traffic.<\/p>\n<pre class=\"prettyprint\">netscreen(M)-&gt; set ff src-ip [local endpoint] dst-ip [remote endpoint] \r\nnetscreen(M)-&gt; undebug all\r\nnetscreen(M)-&gt; clear db\r\nnetscreen(M)-&gt; debug ike basic\r\nnetscreen(M)-&gt; debug flow basic\r\nnetscreen(M)-&gt; get db str\r\n!\r\n!\r\n\u00a0 <strong>Permitted by policy 109<\/strong>\r\n\u00a0 No src xlate\u00a0\u00a0 choose interface ethernet5 as outgoing phy if\r\n\u00a0 check nsrp pak fwd: in_tun=0xffffffff, VSD 0 for out ifp ethernet5\r\n\u00a0 vsd 0 is active\r\n\u00a0 no loop on ifp ethernet5.\r\n\u00a0 session application type 0, name None, nas_id 0, timeout 60sec\r\n\u00a0 service lookup identified service 0.\r\n\u00a0 flow_first_final_check: in &lt;ethernet2&gt;, out &lt;ethernet5&gt;\r\n\u00a0 existing vector list 25-6870620.\r\n\u00a0 Session (id:127345) created for first pak 25\r\n\u00a0 flow_first_install_session======&gt;\r\n\u00a0 cache mac in the session\r\n\u00a0 make_nsp_ready_no_resolve()\r\n\u00a0 search route to (ethernet5, [remote endpoint]-&gt;[local endpoint]) in vr trust-vr for vsd-0\/flag-3000\/ifp-ethernet2\r\n\u00a0 [Dest] 10.route [local endpoint]-&gt;[next hop], to ethernet2\r\n\u00a0 route to [next hop]\r\n\u00a0 nsrp msg sent.\r\n\u00a0 flow got session.\r\n\u00a0 flow session id 127345\r\n\u00a0 vsd 0 is active\r\n\u00a0 skipping pre-frag \r\n\u00a0 <strong>going into tunnel 40000266.<\/strong>\r\n\u00a0 flow_encrypt: pipeline.\r\nchip info: DMA. Tunnel id 00000266\r\n(vn2)\u00a0 <strong>doing ESP encryption and size =64<\/strong>\r\nipsec encrypt prepare engine done\r\nipsec encrypt set engine done\r\nipsec encrypt engine released\r\nipsec encrypt done\r\n\u00a0\u00a0\u00a0 put packet(557a0f0) into flush queue.\r\n\u00a0\u00a0\u00a0 remove packet(557a0f0) out from flush queue.<\/pre>\n<p><!-- [if gte mso 9]><xml>  <w:WordDocument>   <w:View>Normal<\/w:View>   <w:Zoom>0<\/w:Zoom>   <w:TrackMoves\/>   <w:TrackFormatting\/>   <w:PunctuationKerning\/>   <w:ValidateAgainstSchemas\/>   <w:SaveIfXMLInvalid>false<\/w:SaveIfXMLInvalid>   <w:IgnoreMixedContent>false<\/w:IgnoreMixedContent>   <w:AlwaysShowPlaceholderText>false<\/w:AlwaysShowPlaceholderText>   <w:DoNotPromoteQF\/>   <w:LidThemeOther>EN-US<\/w:LidThemeOther>   <w:LidThemeAsian>X-NONE<\/w:LidThemeAsian>   <w:LidThemeComplexScript>X-NONE<\/w:LidThemeComplexScript>   <w:Compatibility>    <w:BreakWrappedTables\/>    <w:SnapToGridInCell\/>    <w:WrapTextWithPunct\/>    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6\"\/>   <w:LsdException Locked=\"false\" Priority=\"19\" SemiHidden=\"false\" UnhideWhenUsed=\"false\" QFormat=\"true\" Name=\"Subtle Emphasis\"\/>   <w:LsdException Locked=\"false\" Priority=\"21\" SemiHidden=\"false\" UnhideWhenUsed=\"false\" QFormat=\"true\" Name=\"Intense Emphasis\"\/>   <w:LsdException Locked=\"false\" Priority=\"31\" SemiHidden=\"false\" UnhideWhenUsed=\"false\" QFormat=\"true\" Name=\"Subtle Reference\"\/>   <w:LsdException Locked=\"false\" Priority=\"32\" SemiHidden=\"false\" UnhideWhenUsed=\"false\" QFormat=\"true\" Name=\"Intense Reference\"\/>   <w:LsdException Locked=\"false\" Priority=\"33\" SemiHidden=\"false\" UnhideWhenUsed=\"false\" QFormat=\"true\" Name=\"Book Title\"\/>   <w:LsdException Locked=\"false\" Priority=\"37\" Name=\"Bibliography\"\/>   <w:LsdException Locked=\"false\" Priority=\"39\" QFormat=\"true\" Name=\"TOC Heading\"\/>  <\/w:LatentStyles> <\/xml><![endif]--><!-- \/* Font Definitions *\/ @font-face {font-family:\"Cambria Math\"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-alt:\"Calisto MT\"; mso-font-charset:0; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:-1610611985 1107304683 0 0 159 0;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4; mso-font-alt:\"Arial Rounded MT Bold\"; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:-1610611985 1073750139 0 0 159 0;} \/* Style Definitions *\/ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:\"\"; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:\"Calibri\",\"sans-serif\"; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-bidi-font-family:\"Times New Roman\";} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; font-size:10.0pt; mso-ansi-font-size:10.0pt; mso-bidi-font-size:10.0pt;} @page Section1 {size:612.0pt 792.0pt; margin:72.0pt 72.0pt 72.0pt 72.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --><!-- [if gte mso 10]>  <![endif]--><\/p>\n<p>If the tunnel does not come up you can use the following debug:<\/p>\n<pre class=\"prettyprint\">netscreen(M)-&gt; ike detail set sa-filter [IP]<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"Event_Logs\"><\/span><strong>Event Logs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In addition to check the Logs that the traffic is being passed you can check for Phase 1 and Phase 2 errors from the devices event logs.<\/p>\n<pre class=\"prettyprint\">netscreen(M)-&gt; get event include [peer ip]<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"Rekey_the_VPN\"><\/span><strong>Rekey the VPN <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For steps on how to rekey a VPN <a href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/netscreen-rekeying-a-vpn-clearing-the-sas.html\">click here.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this example we will run through various steps to troubleshoot a Site 2 Site VPN. Confirm General Details This will give us a general overview of our vpn. netscreen(M)-&gt; get vpn Name\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Gateway\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Mode RPlay 1st Proposal\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Monitor Use Cnt Interface &#8212;&#8212;&#8212;&#8212;&#8212; &#8212;&#8212;&#8212;&#8212;&#8212; &#8212;- &#8212;&#8211; &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211; &#8212;&#8212;- &#8212;&#8212;- &#8212;&#8212;&#8212;- sitea_vpn\u00a0\u00a0 sitea\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 tunl Yes\u00a0\u00a0 g2-esp-3des-sha\u00a0\u00a0\u00a0\u00a0\u00a0 &#8230; <a title=\"Troubleshooting a Netscreen Site 2 Site VPN\" class=\"read-more\" href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html\" aria-label=\"Read more about Troubleshooting a Netscreen Site 2 Site VPN\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Troubleshooting a Netscreen Site 2 Site VPN - Fir3net<\/title>\n<meta name=\"description\" content=\"In this example we will run through various steps to troubleshoot a Site 2 Site VPN. Confirm General Details This will give us a general overview of our\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fir3net.com\/Firewalls\/Juniper\/troubleshooting-a-netscreen-site-2-site-vpn.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Troubleshooting a Netscreen Site 2 Site VPN - Fir3net\" \/>\n<meta property=\"og:description\" content=\"In this example we will run through various steps to troubleshoot a Site 2 Site VPN. 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