USRobotics NETServer/8 - Manual (Page 131)

Packet Filters 8-17
dsthost
Compare the destination IPX node address contained in the
packet to the address given. The IPX address should be in
hexadecimal format.
< permit | deny> dsthost <IPX node address>
srcsocket
Compare the source IPX socket number contained in the packet
to the socket number given. You must specify the type of the
comparison. Valid comparisons are: less than (lt), equal (eq), or
greater than (gt).
< permit | deny> srcsocket <lt | gt | eq> <socket number>
dstsocket
Compare the destination IPX socket number contained in the
packet to the socket number given. You must specify the type of
the comparison. Valid comparisons are: less than (lt), equal (eq),
or greater than (gt).
< permit | deny> srcsocket <lt | gt | eq> <socket number>
IPX rule example
The following rules discards packets which are bound for
network number 342BF if their destination socket number is less
than 32.
deny dstnet 000342BF dstsocket lt 32