https://community.cisco.com/t5/network-security/sourcefire-ids-not-connecting-to-network/m-p/2788450#M44348 <P>So we are upgrading our IDS and our network security engineer is having issues connecting it to the network. We haven't changed any configurations on the switch that the IDS connects to since the old one was taken out (which connected fine). I'm not familiar with the IDS, but here is what he said to me.</P> <P></P> <P>"In passive mode, I configure interface s1p1 and s1p2 to passively listen <ABSOLUTE silence=""> If I trick my sensor to believe it's inline, I can bind s1p1 - s1p4 to an inline set using s1p1&amp;s1p2 / s1p3&amp;s1p4 as respective pairs. This works. I see traffic and it's collected by s1p1 and s1p3 and returned from s1p2 and s1p4 (which there's nothing connected to these interfaces. It just thinks it's inline). I'm baffled. I guess the link state changes when it goes into inline mode rather than passive... but passive was working with the 3D3500 sensor on the exact same connections." </ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;</ABSOLUTE></P> <P></P> <P><ABSOLUTE silence="">The ports it connects to on our switch have these configurations on them: </ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;</ABSOLUTE></P> <P><ABSOLUTE silence="">INterface GigabitEthernet 1/1/1 &amp; 2 </ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;</ABSOLUTE></P> <P><ABSOLUTE silence="">switchport mode trunk</ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;</ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;ip device tracking maximum 0 </ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;</ABSOLUTE></P> <P><ABSOLUTE silence="">channel-group 1 mode active </ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;</ABSOLUTE></P> <P></P> <P><ABSOLUTE silence="">Can someone please tell me if there is a configuration issue on my switch he is connecting to or a configuration issue on his IDS? Thanks!</ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;</ABSOLUTE></P> <P><ABSOLUTE silence="">&nbsp;-Austin </ABSOLUTE></P> Sun, 10 Mar 2019 13:31:30 GMT austinmbailey1 2019-03-10T13:31:30Z https://community.cisco.com/t5/network-security/sourcefire-ids-not-connecting-to-network/m-p/2788450#M44348 We cannot connect the sourcefire ids to our network Sun, 10 Mar 2019 13:31:30 GMT https://community.cisco.com/t5/network-security/sourcefire-ids-not-connecting-to-network/m-p/2788450#M44348 austinmbailey1 2019-03-10T13:31:30Z https://community.cisco.com/t5/network-security/sourcefire-ids-not-connecting-to-network/m-p/2788451#M44349 <P>I have a costumer where the device is connected as you describe.&nbsp;</P> <P>Inline:<BR />s1p1-s1p2, s1p3-s1p4</P> <P></P> <P>s1p1 and s1p3 is in a channel-group on the switch, and the same for s1p2 and s1p4.</P> <P></P> <P>I am unsure what you mean when you say that the switch does not connect.</P> Tue, 17 May 2016 06:51:35 GMT https://community.cisco.com/t5/network-security/sourcefire-ids-not-connecting-to-network/m-p/2788451#M44349 Dennis Perto 2016-05-17T06:51:35Z https://community.cisco.com/t5/network-security/sourcefire-ids-not-connecting-to-network/m-p/2788452#M44350 <P>Hello Team,</P> <P>Is the issue is happening only after the upgrade or you about to perform the upgrade &nbsp;?</P> <P>Any recent changes done on the system ?</P> <P></P> <P>reagrds</P> <P>Jetsy</P> <P></P> <P></P> Tue, 17 May 2016 09:10:14 GMT https://community.cisco.com/t5/network-security/sourcefire-ids-not-connecting-to-network/m-p/2788452#M44350 Jetsy Mathew 2016-05-17T09:10:14Z