https://community.checkpoint.com/t5/Firewall-and-Security-Management/ipsec-s2s-disable-dpd/m-p/174647#M31797 <P>issue with an ipsec tunnel.&nbsp;&nbsp;tunnel is up in nat-t mode. traffic between internal lans (vpn domain) sometimes respond randomlly.</P><P>got intsructions not to use dpd in ike1&nbsp; ("DPD -Dead Peer Detection/IKE Keepalive........do NOT use interval")</P><P>peer is a cisco device.</P><P>my cp is r81 in cluster</P><P>how do i disable dpd? does it impact on other ipsec tunnels?</P><P>also how do i avoid using nat-t?</P><P>appreciate any help thanks</P> Mon, 13 Mar 2023 18:41:40 GMT shukimiz 2023-03-13T18:41:40Z https://community.checkpoint.com/t5/Firewall-and-Security-Management/ipsec-s2s-disable-dpd/m-p/174647#M31797 <P>issue with an ipsec tunnel.&nbsp;&nbsp;tunnel is up in nat-t mode. traffic between internal lans (vpn domain) sometimes respond randomlly.</P><P>got intsructions not to use dpd in ike1&nbsp; ("DPD -Dead Peer Detection/IKE Keepalive........do NOT use interval")</P><P>peer is a cisco device.</P><P>my cp is r81 in cluster</P><P>how do i disable dpd? does it impact on other ipsec tunnels?</P><P>also how do i avoid using nat-t?</P><P>appreciate any help thanks</P> Mon, 13 Mar 2023 18:41:40 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/ipsec-s2s-disable-dpd/m-p/174647#M31797 shukimiz 2023-03-13T18:41:40Z https://community.checkpoint.com/t5/Firewall-and-Security-Management/ipsec-s2s-disable-dpd/m-p/174709#M31808 <P>DPD is definitely discussed here: <A href="https://support.checkpoint.com/results/sk/sk108600" target="_blank">https://support.checkpoint.com/results/sk/sk108600</A><BR />NAT-T is primarily used when you or your peer requires NAT.</P> Tue, 14 Mar 2023 08:54:56 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/ipsec-s2s-disable-dpd/m-p/174709#M31808 PhoneBoy 2023-03-14T08:54:56Z