A partir do /etc/rc.config.d/netconf
documentado:
# ROUTE_DESTINATION: Destination host or network IP address in decimal-dot
# notation, or hostname (in /etc/hosts) or network name
# (in /etc/networks), preceded by the word "host" or "net";
# or simply the word "default".
#
# ROUTE_MASK: Subnetwork mask in decimal-dot notation, or C language
# hexadecimal notation. This is an optional field.
# An IP address/subnet mask pair uniquely identifies
# a subnet to be reached. If a subnet mask is not given,
# then the system will assign the longest subnet mask
# of the configured network interfaces to this route.
# If there is no matching subnet mask, then the system
# will assign the default network mask as the route's
# subnet mask.
Eu não tenho um HPUX com o qual eu possa tocar agora, mas com base nesta documentação você pode tentar:
ROUTE_DESTINATION[1]="net 10.105.2.0"
ROUTE_MASK[1]=""
ROUTE_GATEWAY[1]="192.1.1.219"
ROUTE_COUNT[1]="1"
ROUTE_ARGS[1]=""
ou
ROUTE_DESTINATION[1]="net 10.105.2.0"
ROUTE_MASK[1]="255.255.255.0"
ROUTE_GATEWAY[1]="192.1.1.219"
ROUTE_COUNT[1]="1"
ROUTE_ARGS[1]=""
ou
ROUTE_DESTINATION[1]="10.105.2.0/24"
ROUTE_MASK[1]=""
ROUTE_GATEWAY[1]="192.1.1.219"
ROUTE_COUNT[1]="1"
ROUTE_ARGS[1]=""