topic Span Configuration in Network Security https://community.cisco.com/t5/network-security/span-configuration/m-p/981202#M80126 <P>I have configure my 3750 switch for span. In this switch my IPS 4255, Internet router and Pix firewall is connected.</P><P></P><P>Below mention is the span configuration</P><P></P><P>monitor session 1 source interface Gi1/0/1 - 3</P><P>monitor session 1 destination interface Gi1/0/5</P><P></P><P>now the problem is the that IPS capturing traffic twice once while going out and once while coming in.</P><P></P><P>I wana know how to configure monitor session that it only capture traffic that is coming from Internet. Not traffic that</P><P></P><P>is originating from inside of the network.</P><P></P><P></P><P>In switch port 1 Internet router is connected, port 2 is for firewall and three is for concentrator. </P><P></P><P></P><P>I m confuse about the span port configuration either Rx or Tx. Right it is both Rx and Tx. </P><P></P><P></P><P></P> Sun, 10 Mar 2019 11:05:32 GMT wasiimcisco 2019-03-10T11:05:32Z Span Configuration https://community.cisco.com/t5/network-security/span-configuration/m-p/981202#M80126 <P>I have configure my 3750 switch for span. In this switch my IPS 4255, Internet router and Pix firewall is connected.</P><P></P><P>Below mention is the span configuration</P><P></P><P>monitor session 1 source interface Gi1/0/1 - 3</P><P>monitor session 1 destination interface Gi1/0/5</P><P></P><P>now the problem is the that IPS capturing traffic twice once while going out and once while coming in.</P><P></P><P>I wana know how to configure monitor session that it only capture traffic that is coming from Internet. Not traffic that</P><P></P><P>is originating from inside of the network.</P><P></P><P></P><P>In switch port 1 Internet router is connected, port 2 is for firewall and three is for concentrator. </P><P></P><P></P><P>I m confuse about the span port configuration either Rx or Tx. Right it is both Rx and Tx. </P><P></P><P></P><P></P> Sun, 10 Mar 2019 11:05:32 GMT https://community.cisco.com/t5/network-security/span-configuration/m-p/981202#M80126 wasiimcisco 2019-03-10T11:05:32Z Re: Span Configuration https://community.cisco.com/t5/network-security/span-configuration/m-p/981203#M80128 <HTML><HEAD></HEAD><BODY><P>You can specify the direction you want to captire traffic in your "monitor session" command. The default is both Receive and Transmit. Thy this version of your command:</P><P>monitor session 1 source interface Gi1/0/1 - 3 r</P><P></P><P></P></BODY></HTML> Mon, 05 May 2008 14:52:43 GMT https://community.cisco.com/t5/network-security/span-configuration/m-p/981203#M80128 rhermes 2008-05-05T14:52:43Z