via_block: < digi>[,< digi>]...

digi digipeater call from which frames that passed it are not accepted

"via_block:" also considers calls in the third-party header. It only considders the most recent 3rd party header, not recursive when the embedded packet contains another 3rd party header.

The optional port number is valid for both FROM this port and TO this port. The optional port number supplied with "block:" and "msg_block:" only blocks packets FROM that port.


via_block: TCPIP,IGATE

Wildcards may be used to match the incoming callsigns.

*   Matches any 0 or more character(s).
?   Matches any 1 character.
@  Matches any alpha character.
!    Matches any digit.

More info see: Wildcards.