(see setting description format info here)
| Function: | Defines whether the DS will accept incoming data connections from any network host (filtering disabled) or specific host only (filtering enabled) | 
| Post-initialization value: | 0 (disabled) | 
| Change takes effect: | After reboot | 
| Relevance conditions: | Current Routing Mode (RM) [setting/parameter]= 0 (server) or 1 (server/client)  | 
| First introduced: | V3.24/3.54 | 
 When  Source IP Filtering is 0 (disabled) the DS will accept an incoming data connection from any network host.
 When  Source IP Filtering is 1 (enabled) the DS will accept an incoming data connection only from host whose IP-address matches the one specified by  current Destination IP-address [setting /parameter ] .
 Since out-of-bandon-the-fly commands (network-side parameters issued using Parameter (P) command ) can also be considered a part of a data connection the DS will reject any such command that comes from a "wrong" IP-address while source IP-address filtering is enabled.
 This setting is irrelevant when  current Routing Mode (RM) [setting /parameter ] is 2 (client) because in this mode the DS won't accept incoming connections at all.