TCP/IPv6 Configuration and Management Manual (G06.24+)

SCF Reference for NonStop TCP/IPv6
HP NonStop TCP/IPv6 Configuration and Management Manual—524523-008
8-35
ADD SUBNET Command for TCP6MAN
portion of the fully-qualified name in a prior ASSUME command, you can omit that
portion of the name in this command. For information about the ASSUME
command, see the SCF Reference Manual for G-Series RVUs or the SCF
Reference Manual for H-Series RVUs.
FAMILY DUAL
specifies that the SUBNET is configured as a failover pair in both INET (IPv4) and
INET6 (IPv6) environments.
TYPE ETHERNET
is the type of SUBNET to be added. For IPv6 configurations that do not involve
tunneling, the only valid type is ETHERNET.
IPADDRESS ip-addr
is the IPv4 address associated with this SUBNET interface. This attribute is
required. There is no default.
DEVICENAME lif-name
is the name of the device to be opened to connect to the network. This
corresponds to the ServerNet LAN systems access (SLSA) logical interface (LIF).
The LIF provides access to the Ethernet LAN. For information on how to choose a
SLSA device name, see step 3 on page 1-3. When adding a SUBNET, the
DEVICENAME for the SLSA SUBNET does not begin with a dollar sign ($)
character. There is no default.
IRDP {ON | OFF}
enables (ON) or disables (OFF) the ICMP Router Discovery Protocol (IRDP) on the
SUBNET interface. IRDP is a mechanism for locating default routers and is
specified in RFC 1256. IRDP also must be enabled on any local LAN routers. If
redundant routers are configured with route hold-down times and advertisement
intervals of approximately 30 seconds, IRDP can be used to provide a “black hole”,
or dead gateway, detection mechanism. The NonStop TCP/IPv6 subsystem
implements IRDP using IP broadcasts rather than IP multicasts. The default is off.
SUBNETMASK mask-val
specifies the part of the IPv4 address that must be masked to borrow bits from the
host portion of the address and use them to designate a SUBNET. Subnet masks
enable you to generate additional subnets from CLASS A, CLASS B and CLASS C
networks. The mask-val is specified as dotted-decimal or hexadecimal notation. If
it is not specified, it defaults to the corresponding network mask of the specified IP
address. A non-contiguous mask value is not supported. Because a non-
contiguous mask value is not supported, netmask values such as 0.255.255.0,
255.0.255.0, 0.0.255.0 are considered invalid.