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# wpcap_remote.htm File Reference

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## Functions
< html >< head >< metahttp-equiv="Content-Type"content="text/html;charset=windows-1252">< metaname="GENERATOR"content="MicrosoftFrontPage4.0">< metaname="ProgId"content="FrontPage.Editor.Document">< title > Using WinPcap Remote Capture</title ></head >< body >< hr >< ul >< li >< ahref="#RunningModes"> Remote Capture Running Modes</a >< /li >< li >< ahref="#Config"> Configuring the Remote | Daemon (rpcapd)</a ></li >< li >< a href="#StartCap">Starting a capture on a remote machine</a ></li >< li >< a href="#UNIX">Installing the Remote Capture Daemon in UNIX</a ></li ></ul >< hr >< p >WinPcap 3.1 comes with Remote Capture capabilities.This is an highly experimental feature that allows to interact to a remote machine and capture packets that are being transmitted on the remote network.</p >< p >This requires a< b >remote daemon</b >(called< code >rpcapd</code >) which performs the capture and sends data back and a< b >local client</b >that sends the appropriate commands and receives the captured data.</p >< p >WinPcap 3.1 extends the standard WinPcap code in such a way that all WinPcap-based tools can expoit remote capture capabilities.For instance, the capabillity to interact with a remote daemon are added to the client software without any explicit modification to it.Vice versa, the remote daemon must be explicitely installed(and configured) on the remote machine.</p >< h2 >< a name="RunningModes"></a >Remote Capture Running Modes</h2 >< p >The Remote Capture Protocol(RPCAP) can work in two modes:</p >< ul >< li >< b >Passive Mode</b >(default):the client(e.g.a network sniffer) connects to the remote daemon, it sends them the appropriate commands, andit starts the capture.</li >< li >< b >Active Mode</b >:the remote daemon try to establish a connection towardthe client(e.g.the network sniffer)
## Variables
| then
the client sends the appropriate commands to the daemon and it starts the capture This name is due to the fact thet the daemon becomes< i > active< /i > instead of< i > waiting< /i > for new connections< /li ></ul >< p > The Active Mode is useful in case the remote daemon is behind a firewall and it cannot receive connections from the external world In this | case
the client sends the appropriate commands to the daemon and it starts the capture This name is due to the fact thet the daemon becomes< i > active< /i > instead of< i > waiting< /i > for new connections< /li ></ul >< p > The Active Mode is useful in case the remote daemon is behind a firewall and it cannot receive connections from the external world In this the daemon can be configured to establish the connection to a given | host
the client sends the appropriate commands to the daemon and it starts the capture This name is due to the fact thet the daemon becomes< i > active< /i > instead of< i > waiting< /i > for new connections< /li ></ul >< p > The Active Mode is useful in case the remote daemon is behind a firewall and it cannot receive connections from the external world In this the daemon can be configured to establish the connection to a given which will have been configured in order to< i > wait</i > for that connection After establishing the | connection

## Function Documentation

<html><head><metahttp-equiv="Content-Type"content="text/html;charset=windows-1252"><metaname="GENERATOR"content="MicrosoftFrontPage4.0"><metaname="ProgId"content="FrontPage.Editor.Document"><title> Using WinPcap Remote Capture</title></head><body><hr><ul><li><ahref="#RunningModes"> Remote Capture Running Modes</a></li><li><ahref="#Config"> Configuring the Remote Daemon | ( | rpcapd |  | ) |

## Variable Documentation

the client sends the appropriate commands to the daemon and it starts the capture This name is due to the fact thet the daemon becomes<i> active</i> instead of<i> waiting</i> for new connections</li></ul><p> The Active Mode is useful in case the remote daemon is behind a firewall and it cannot receive connections from the external world In this case

| Definition at line 38 of file wpcap_remote.htm.

the client sends the appropriate commands to the daemon and it starts the capture This name is due to the fact thet the daemon becomes<i> active</i> instead of<i> waiting</i> for new connections</li></ul><p> The Active Mode is useful in case the remote daemon is behind a firewall and it cannot receive connections from the external world In this the daemon can be configured to establish the connection to a given which will have been configured in order to<i> wait</i> for that connection After establishing the connection

| Definition at line 38 of file wpcap_remote.htm.

the client sends the appropriate commands to the daemon and it starts the capture This name is due to the fact thet the daemon becomes<i> active</i> instead of<i> waiting</i> for new connections</li></ul><p> The Active Mode is useful in case the remote daemon is behind a firewall and it cannot receive connections from the external world In this the daemon can be configured to establish the connection to a given host

| Definition at line 38 of file wpcap_remote.htm.

then

| Definition at line 38 of file wpcap_remote.htm.

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