topic Re: Unknown source in alert in Network Security https://community.cisco.com/t5/network-security/unknown-source-in-alert/m-p/709354#M92306 <HTML><HEAD></HEAD><BODY><P>This usually means the signature has summarized a group of alarms. To check if this is the case, set the signature to "Fire All". If it quits happening, then this is definitely the issue. You might have to do a Fire All if you want to see the Source IPs. Or you may have to change the summary key.</P></BODY></HTML> Mon, 25 Sep 2006 20:21:39 GMT jwalker 2006-09-25T20:21:39Z Unknown source in alert https://community.cisco.com/t5/network-security/unknown-source-in-alert/m-p/709353#M92304 <P>What does it mean when an alert lists 0.0.0.0 as the source that triggered the signature? </P> Sun, 10 Mar 2019 10:14:31 GMT https://community.cisco.com/t5/network-security/unknown-source-in-alert/m-p/709353#M92304 tami.martin 2019-03-10T10:14:31Z Re: Unknown source in alert https://community.cisco.com/t5/network-security/unknown-source-in-alert/m-p/709354#M92306 <HTML><HEAD></HEAD><BODY><P>This usually means the signature has summarized a group of alarms. To check if this is the case, set the signature to "Fire All". If it quits happening, then this is definitely the issue. You might have to do a Fire All if you want to see the Source IPs. Or you may have to change the summary key.</P></BODY></HTML> Mon, 25 Sep 2006 20:21:39 GMT https://community.cisco.com/t5/network-security/unknown-source-in-alert/m-p/709354#M92306 jwalker 2006-09-25T20:21:39Z