topic rpf-check failure in Network Security https://community.cisco.com/t5/network-security/rpf-check-failure/m-p/2132035#M357182 <P>Hi!</P><P></P><P>What does the above statement mean? </P><P></P><P>I am trying to nat some traffic but the packet tracer shows that packets get dropped at the NAT rpf-check step. </P><P></P><P>/Lajja</P> Tue, 26 Mar 2019 00:50:06 GMT Lajja1234 2019-03-26T00:50:06Z rpf-check failure https://community.cisco.com/t5/network-security/rpf-check-failure/m-p/2132035#M357182 <P>Hi!</P><P></P><P>What does the above statement mean? </P><P></P><P>I am trying to nat some traffic but the packet tracer shows that packets get dropped at the NAT rpf-check step. </P><P></P><P>/Lajja</P> Tue, 26 Mar 2019 00:50:06 GMT https://community.cisco.com/t5/network-security/rpf-check-failure/m-p/2132035#M357182 Lajja1234 2019-03-26T00:50:06Z rpf-check failure https://community.cisco.com/t5/network-security/rpf-check-failure/m-p/2132036#M357183 <HTML><HEAD></HEAD><BODY><P>Hello Lajja1234,</P><P></P><P>It means that on the way&nbsp; back&nbsp; ( the returning traffic) there is no valid NAT for that traffic,</P><P></P><P>You can post the traffic that you want to allow and the packet tracer, I will then provide you what you need</P><P></P><P>Regards</P></BODY></HTML> Sat, 02 Feb 2013 19:08:39 GMT https://community.cisco.com/t5/network-security/rpf-check-failure/m-p/2132036#M357183 Julio Carvajal 2013-02-02T19:08:39Z