topic Re: PIX Syslog Error Message in Network Security https://community.cisco.com/t5/network-security/pix-syslog-error-message/m-p/594578#M500680 <HTML><HEAD></HEAD><BODY><P></P><P>Reverse path check is used when is packet comes from network behind interface and this network is not in firewalls routing table...its antispoofing feature... </P><P> IP addresses in the range of 169.254.0.0 -169.254.255.255 are used for Automatic Private IP Addressing - and it means your computer is setup as a DHCP client, but couldn't find a DHCP server for that network interface. Its explanation how 169.254.2.2 can be in PIX log...</P><P>If you are using DHCP try to check why HP IPAQ cannot get IP from your range.. If you not using DHCP server try to set correct IP for HP IPAQ manually</P><P>M.</P><P>Hope that helps rate if it does </P><P></P><P></P></BODY></HTML> Wed, 07 Jun 2006 05:15:21 GMT m.sir 2006-06-07T05:15:21Z PIX Syslog Error Message https://community.cisco.com/t5/network-security/pix-syslog-error-message/m-p/594577#M500679 <P>My daughter has a HP IPAQ and my PIX 501 generates the following message:</P><P></P><P>%PIX-1-106021: Deny udp reverse path check from 169.254.2.2 to 255.255.255.255 on interface inside</P><P></P><P>My daughter has an HP IPAQ and I think that this is coming from her IPAQ trying to sync but I am not sure what this error is trying to tell me.</P><P></P><P></P><P>Thanks,</P><P></P> Fri, 21 Feb 2020 08:56:57 GMT https://community.cisco.com/t5/network-security/pix-syslog-error-message/m-p/594577#M500679 hugginsgreg 2020-02-21T08:56:57Z Re: PIX Syslog Error Message https://community.cisco.com/t5/network-security/pix-syslog-error-message/m-p/594578#M500680 <HTML><HEAD></HEAD><BODY><P></P><P>Reverse path check is used when is packet comes from network behind interface and this network is not in firewalls routing table...its antispoofing feature... </P><P> IP addresses in the range of 169.254.0.0 -169.254.255.255 are used for Automatic Private IP Addressing - and it means your computer is setup as a DHCP client, but couldn't find a DHCP server for that network interface. Its explanation how 169.254.2.2 can be in PIX log...</P><P>If you are using DHCP try to check why HP IPAQ cannot get IP from your range.. If you not using DHCP server try to set correct IP for HP IPAQ manually</P><P>M.</P><P>Hope that helps rate if it does </P><P></P><P></P></BODY></HTML> Wed, 07 Jun 2006 05:15:21 GMT https://community.cisco.com/t5/network-security/pix-syslog-error-message/m-p/594578#M500680 m.sir 2006-06-07T05:15:21Z