https://community.checkpoint.com/t5/General-Topics/traffic-drop-due-to-anti-spoofing-r77-30/m-p/112377#M21155 <P>You're on an outdated / unsupported version, mate.<BR />Anyhow, you'll need to verifiy your network topology with <A href="https://community.checkpoint.com/t5/Security-Gateways/One-liner-for-Address-Spoofing-Troubleshooting/m-p/33204" target="_self">this tool</A>, then correct it within the interface settings of that specific gateway object in SmartConsole and install policy.</P> Wed, 03 Mar 2021 14:34:35 GMT Danny 2021-03-03T14:34:35Z https://community.checkpoint.com/t5/General-Topics/traffic-drop-due-to-anti-spoofing-r77-30/m-p/112374#M21154 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screen Shot 2021-03-03 at 6.43.04 PM.png" style="width: 718px;"><img src="https://community.checkpoint.com/t5/image/serverpage/image-id/10736i51EFADD8A6A52F16/image-size/large?v=v2&amp;px=999" role="button" title="Screen Shot 2021-03-03 at 6.43.04 PM.png" alt="Screen Shot 2021-03-03 at 6.43.04 PM.png" /></span></P><P>&nbsp;</P><P>How to add this ip without disabling anti-spoofing?</P> Wed, 03 Mar 2021 14:24:35 GMT https://community.checkpoint.com/t5/General-Topics/traffic-drop-due-to-anti-spoofing-r77-30/m-p/112374#M21154 Prime 2021-03-03T14:24:35Z https://community.checkpoint.com/t5/General-Topics/traffic-drop-due-to-anti-spoofing-r77-30/m-p/112377#M21155 <P>You're on an outdated / unsupported version, mate.<BR />Anyhow, you'll need to verifiy your network topology with <A href="https://community.checkpoint.com/t5/Security-Gateways/One-liner-for-Address-Spoofing-Troubleshooting/m-p/33204" target="_self">this tool</A>, then correct it within the interface settings of that specific gateway object in SmartConsole and install policy.</P> Wed, 03 Mar 2021 14:34:35 GMT https://community.checkpoint.com/t5/General-Topics/traffic-drop-due-to-anti-spoofing-r77-30/m-p/112377#M21155 Danny 2021-03-03T14:34:35Z