topic Very Strange PIX Firewall Issue in Network Security https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828322#M490880 <P>Hello All,</P><P></P><P>Today at our Datacenter there was a very strange issue. So we were seeing many drops with servers that we had on one of our many cirucits. Only one circuit was affected. After troubleshooting through everything I realized that the issue was PIX that we have on that circuit. When everything else except this PIX is connected in everything works fine. This has been our PIX for the last 3-4 years and has worked just fine. Out of nowhere now it basically takes down everything. No changes were made and this just happened out of nowhere. What I mean by it takes down everything is that we have basically a public switch with a few devices into it. All of these devices work 100% when I unplug the PIX from it however when I plug the PIX everything completely loses connection. By this I mean that 50% of pings to ALL devices including the PIX itself fail but again once I disconnect the PIX everything comes completely up again. Just to reiterate this has been our PIX for the last 3-4 years and no changes were made. This happened out of nowhere. Has anyone ever seen anything like this and do you think there is a way to fix or should we just simply replace?</P><P></P><P>Thanks so much in advance.</P> Mon, 11 Mar 2019 22:03:15 GMT John Apricena 2019-03-11T22:03:15Z Very Strange PIX Firewall Issue https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828322#M490880 <P>Hello All,</P><P></P><P>Today at our Datacenter there was a very strange issue. So we were seeing many drops with servers that we had on one of our many cirucits. Only one circuit was affected. After troubleshooting through everything I realized that the issue was PIX that we have on that circuit. When everything else except this PIX is connected in everything works fine. This has been our PIX for the last 3-4 years and has worked just fine. Out of nowhere now it basically takes down everything. No changes were made and this just happened out of nowhere. What I mean by it takes down everything is that we have basically a public switch with a few devices into it. All of these devices work 100% when I unplug the PIX from it however when I plug the PIX everything completely loses connection. By this I mean that 50% of pings to ALL devices including the PIX itself fail but again once I disconnect the PIX everything comes completely up again. Just to reiterate this has been our PIX for the last 3-4 years and no changes were made. This happened out of nowhere. Has anyone ever seen anything like this and do you think there is a way to fix or should we just simply replace?</P><P></P><P>Thanks so much in advance.</P> Mon, 11 Mar 2019 22:03:15 GMT https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828322#M490880 John Apricena 2019-03-11T22:03:15Z Very Strange PIX Firewall Issue https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828323#M490882 <HTML><HEAD></HEAD><BODY><P>Hello John,</P><P></P><P>It is not a easy task to troubleshoot this performance issues. </P><P>I would like to see a show interface from the pix to check if there are any errors with the interfaces.</P><P></P><P>Regards,</P><P></P><P>Julio</P></BODY></HTML> Mon, 19 Dec 2011 02:23:46 GMT https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828323#M490882 Julio Carvajal 2011-12-19T02:23:46Z Very Strange PIX Firewall Issue https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828324#M490884 <HTML><HEAD></HEAD><BODY><P>Hello jcarvaja,</P><P></P><P>Thanks for the reply. I am not in the office now but I will get you this info tomorrow. Thanks again.</P></BODY></HTML> Mon, 19 Dec 2011 04:15:23 GMT https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828324#M490884 John Apricena 2011-12-19T04:15:23Z Very Strange PIX Firewall Issue https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828325#M490887 <HTML><HEAD></HEAD><BODY><P>Thank You for your help, it turned out to be a Linux Server server that took down the network. Crazy Stuff, but thank you.</P></BODY></HTML> Mon, 19 Dec 2011 18:52:01 GMT https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828325#M490887 John Apricena 2011-12-19T18:52:01Z Very Strange PIX Firewall Issue https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828326#M490890 <HTML><HEAD></HEAD><BODY><P>Hello John,</P><P></P><P>Great to hear that now everything is working fine.</P><P></P><P>Have a great day,</P><P></P><P>Julio</P></BODY></HTML> Mon, 19 Dec 2011 19:14:13 GMT https://community.cisco.com/t5/network-security/very-strange-pix-firewall-issue/m-p/1828326#M490890 Julio Carvajal 2011-12-19T19:14:13Z