Record ioctl number used in alternate Internet module implementation
Detail:
The definition here is taken from the latest FreeBSD source tree. It is not used by the RISC OS 5 sources at present, but is recorded in case any more RISC OS-specific extensions are added, to ensure they steer clear of it. Note that FreeBSD has added a number of other additional ioctls since the RISC OS TCPIP stack forked from it - no attempt has been made to deal with those.
Admin:
Arises from an allocation request.