topic Re: Issue in Tunnel re-establishment in Network Security https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247403#M770477 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I have configured the GRE Keepalives "keepalive 1 10"</P><P></P><P>Regards</P><P>Logesh</P></BODY></HTML> Mon, 23 Nov 2009 22:10:35 GMT lmanavalan 2009-11-23T22:10:35Z Issue in Tunnel re-establishment https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247401#M770473 <DIV class="jive-rendered-content"><P>Hi,</P><P></P><P>I successfully establised the IPsec between 2 end points which consistes of ASA followed by a router on both ends. Then i configured the GRE Tunnel between 2 end and configured OSPF. No problem in OSPF Neighbour formation. But, couple of issues</P><P></P><OL><LI>When the Router reloads then the GRE is not establishing unless i execute the "clear xlate" on the ASA. when i clear the tunnel everything is working fine. Tunnel is back to normal</LI><LI>Inorder to overcome the above issue I change the default tunnel mode to "tunnel mode ipip" in the GRE Tunnel configuration. The tunnel is reestablishing automatically when the router reloads and i dont have to clear the tunnel. But the OSPF is not working when "tunnel mode ipip" in the GRE Tunnel configuration is used.</LI></OL><P></P><P>What could be the reason that the tunnnel is not reestablishing automatically.If i could solve this issue then i dont have to worry about "tunnel mode ipip" in the GRE Tunnel configuration beacause its additional problem.</P><P></P><P>What could be the reason for this</P><P></P><P>Regards</P><P>Logesh</P></DIV> Mon, 11 Mar 2019 16:41:30 GMT https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247401#M770473 lmanavalan 2019-03-11T16:41:30Z Re: Issue in Tunnel re-establishment https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247402#M770475 <HTML><HEAD></HEAD><BODY><P>Have you configured gre keepalives on the two routers?</P></BODY></HTML> Mon, 23 Nov 2009 16:21:58 GMT https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247402#M770475 Alexander Hartmaier 2009-11-23T16:21:58Z Re: Issue in Tunnel re-establishment https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247403#M770477 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I have configured the GRE Keepalives "keepalive 1 10"</P><P></P><P>Regards</P><P>Logesh</P></BODY></HTML> Mon, 23 Nov 2009 22:10:35 GMT https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247403#M770477 lmanavalan 2009-11-23T22:10:35Z Re: Issue in Tunnel re-establishment https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247404#M770479 <HTML><HEAD></HEAD><BODY><P>Try to increase the keepalive period, every second is a bit often.</P></BODY></HTML> Tue, 24 Nov 2009 14:57:23 GMT https://community.cisco.com/t5/network-security/issue-in-tunnel-re-establishment/m-p/1247404#M770479 Alexander Hartmaier 2009-11-24T14:57:23Z