topic ASA loopback in Network Security https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222606#M347973 <HTML><HEAD></HEAD><BODY><P>Only the product team could definitively answer "why" but the ASA doesn't suffer for lack of a loopback interface. If you want an "always on" management interface it has the dedicated interface(s) for that.</P></BODY></HTML> Sun, 16 Jun 2013 13:56:45 GMT Marvin Rhoads 2013-06-16T13:56:45Z ASA loopback https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222605#M347972 <P>Hey all,</P><P>Can someone please explain me why does cisco firewall doesnt have a loopback interface while other vendors loke palo alto,F5 and juniper does have.</P><P>Thanks .</P> Tue, 12 Mar 2019 01:58:36 GMT https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222605#M347972 Csco12071985 2019-03-12T01:58:36Z ASA loopback https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222606#M347973 <HTML><HEAD></HEAD><BODY><P>Only the product team could definitively answer "why" but the ASA doesn't suffer for lack of a loopback interface. If you want an "always on" management interface it has the dedicated interface(s) for that.</P></BODY></HTML> Sun, 16 Jun 2013 13:56:45 GMT https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222606#M347973 Marvin Rhoads 2013-06-16T13:56:45Z ASA loopback https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222607#M347974 <HTML><HEAD></HEAD><BODY><P>So if i want to work with ospf, the router id will be determined by the manegment interface?</P></BODY></HTML> Mon, 17 Jun 2013 06:36:08 GMT https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222607#M347974 Csco12071985 2013-06-17T06:36:08Z Re: ASA loopback https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222608#M347975 <P>For OSPF on an ASA, it's much like an IOS router with respect to router-id. That is, the ASA will use either the highest numbered interface address by default or whatever router-id you specify (my preferred method) using the "router-id" command under the "router ospf" section. In the ASDM GUI it's set under "Configuration, Device Setup, Routing, OSPF, Setup, Advanced"</P> Mon, 09 Nov 2020 03:01:46 GMT https://community.cisco.com/t5/network-security/asa-loopback/m-p/2222608#M347975 Marvin Rhoads 2020-11-09T03:01:46Z