topic Re: ASA Null0 interface in Network Security https://community.cisco.com/t5/network-security/asa-null0-interface/m-p/1327325#M808414 <HTML><HEAD></HEAD><BODY><P>Belabasci</P><P></P><P>AS far as i know the ASA does not support a Null0 interface in the same way IOS routers do.</P><P></P><P>The solution i have used is to point the routes to the nearest next-hop router under your control and then Null0 them on that router.</P><P></P><P>Jon</P></BODY></HTML> Tue, 13 Oct 2009 16:44:00 GMT Jon Marshall 2009-10-13T16:44:00Z ASA Null0 interface https://community.cisco.com/t5/network-security/asa-null0-interface/m-p/1327324#M808376 <P>Dear NetPro!</P><P></P><P>I would like to route some prefix to null0 in a Cisco ASA 5540 perimeter firewall. I have found no information about this virtual interface in ASA. Does anybody have any experience how to configre and implement these static routes?</P><P></P><P>Thanks in advance!</P><P></P><P>BR</P><P></P><P>Belabacsi</P> Mon, 11 Mar 2019 16:25:33 GMT https://community.cisco.com/t5/network-security/asa-null0-interface/m-p/1327324#M808376 Bela Mareczky 2019-03-11T16:25:33Z Re: ASA Null0 interface https://community.cisco.com/t5/network-security/asa-null0-interface/m-p/1327325#M808414 <HTML><HEAD></HEAD><BODY><P>Belabasci</P><P></P><P>AS far as i know the ASA does not support a Null0 interface in the same way IOS routers do.</P><P></P><P>The solution i have used is to point the routes to the nearest next-hop router under your control and then Null0 them on that router.</P><P></P><P>Jon</P></BODY></HTML> Tue, 13 Oct 2009 16:44:00 GMT https://community.cisco.com/t5/network-security/asa-null0-interface/m-p/1327325#M808414 Jon Marshall 2009-10-13T16:44:00Z Re: ASA Null0 interface https://community.cisco.com/t5/network-security/asa-null0-interface/m-p/1327326#M808435 <HTML><HEAD></HEAD><BODY><P>There is no such thing on ASA. Why not simply deny the traffic in your access-list(s) ?</P><P></P></BODY></HTML> Tue, 13 Oct 2009 20:12:12 GMT https://community.cisco.com/t5/network-security/asa-null0-interface/m-p/1327326#M808435 Herbert Baerten 2009-10-13T20:12:12Z