Configuring the Source Interface for FTP Packets
You can configure an operational interface as the source interface for FTP packets sent by the system’s FTP client using the ip ftp source-address and ip ftp source-interface commands.
When you issue the ip ftp source-address command, the output of the show configuration command includes an entry of the following format:
This entry also appears in the output if you delete an interface or change its IP address after issuing the ip ftp source-interface command, in which case the IP address is the one that was configured on the interface before you issued the ip ftp source-interface command.
When you issue the ip ftp source-interface command, the output of the show configuration command includes an entry of the following format:
- interfaceType—Type of interface.
- interfaceSpecifier—Location
of the interface
For information about interface types and specifiers, see Interface Types and Specifiers in JunosE Command Reference Guide.
If you delete the interface or change its IP address, the output of the show configuration command appears as if you had entered the ip ftp source-address command:
- ipAddress—IP address of the interface when you issued the ip ftp source-interface command.
To configure an operational interface as the source interface for FTP packets sent by the system’s FTP client:
- Issue the ip ftp source-address command in Global Configuration mode for configuring an operational
interface as the source interface using the IP address.host1(config)#ip ftp source-address 10.10.5.21
This command overrides a setting you configured previously with the ip ftp source-interface command. Use the no version to restore the default, in which the source address in the FTP packets is that of the interface where the FTP connection is made.
- Issue the ip ftp source-interface command in Global Configuration mode for configuring an operational
interface as the source interface using the interface type and interface
specifier.host1(config)#ip ftp source-interface loopback1

Note: The interface you specify must have an IP address.
This command overrides a setting you configured previously with the ip ftp source-address command. Use the no version to restore the default, in which the source address in the FTP packets is that of the interface where the FTP connection is made.
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