topic Re: PIX is checking protocol compability with RFC???? in Network Security https://community.cisco.com/t5/network-security/pix-is-checking-protocol-compability-with-rfc/m-p/436828#M531579 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I think PIX will not check it as you can always change the protocol number to any ununsed number as desired. This is done using 'fixup' command.</P><P></P><P>The 'monitor-interface <INTERFACE name="">' if used to monitor the interface for failover purposes.</INTERFACE></P><P></P><P>Rgds,</P><P>AK</P></BODY></HTML> Fri, 21 Oct 2005 11:58:52 GMT a.kiprawih 2005-10-21T11:58:52Z PIX is checking protocol compability with RFC???? https://community.cisco.com/t5/network-security/pix-is-checking-protocol-compability-with-rfc/m-p/436827#M531577 <P>Hey,</P><P></P><P>I need to know if PIX is checking compability protocol (likeTFTP) with RFC,</P><P>and if packet is malformed it can be treated like atack? </P><P>I have aplication that is modyfing tftp packet and pix is not sending them! </P><P>If I switch it off it'll help??: </P><P>no monitor-interface outside</P><P>no monitor-interface inside</P><P></P><P></P><P>THX </P><P>Laptom</P> Fri, 21 Feb 2020 08:28:46 GMT https://community.cisco.com/t5/network-security/pix-is-checking-protocol-compability-with-rfc/m-p/436827#M531577 CSCO10685980 2020-02-21T08:28:46Z Re: PIX is checking protocol compability with RFC???? https://community.cisco.com/t5/network-security/pix-is-checking-protocol-compability-with-rfc/m-p/436828#M531579 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I think PIX will not check it as you can always change the protocol number to any ununsed number as desired. This is done using 'fixup' command.</P><P></P><P>The 'monitor-interface <INTERFACE name="">' if used to monitor the interface for failover purposes.</INTERFACE></P><P></P><P>Rgds,</P><P>AK</P></BODY></HTML> Fri, 21 Oct 2005 11:58:52 GMT https://community.cisco.com/t5/network-security/pix-is-checking-protocol-compability-with-rfc/m-p/436828#M531579 a.kiprawih 2005-10-21T11:58:52Z