Use the PORTCOMMANDIPADDR statement to direct the server to accept only PORT or EPRT commands whose IP address matches that of the client.
Syntax
.-PORTCOMMANDIPADDR UNRESTRICTED------. >>-+-------------------------------------+--------------------->< '-PORTCOMMANDIPADDR--+-UNRESTRICTED-+-' '-NOREDIRECT---'
Parameters
- UNRESTRICTED
- If PORTCOMMAND is set to ACCEPT or unspecified, the server accepts any IP address as a parameter for the PORT and EPRT commands.
- NOREDIRECT
- If PORTCOMMAND is set to ACCEPT or unspecified, the server rejects any PORT or EPRT command whose IP address does not match that of the client.
Examples
Setting the server to reject all
PORT or EPRT commands with an IP address different from the IP address
of the control connection is shown in the following example:
PORTCOMMAND ACCEPT
PORTCOMMANDIPADDR NOREDIRECTUsage notes
When PORTCOMMAND is set to REJECT, all PORT and EPRT commands are rejected. PORTCOMMANDPORT and PORTCOMMANDIPADDR settings are disregarded.