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

SCF Reference for NonStop TCP/IPv6
HP NonStop TCP/IPv6 Configuration and Management Manual—524523-008
8-49
ALTER SUBNET Command for TCP6MAN
As of the G06.24 RVU, the default behavior for applications in different processors
binding to the same port and different addresses is failure to bind. However,
applications depending on the non-standard behavior of successful binds to the same
port and different addresses if running in different processors can retain this behavior
by setting the new SCF attribute, PORT-SHARE-ENABLE, to ON.
ALTER SUBNET Command for TCP6MAN
The ALTER SUBNET command is used to change the attribute values of a SUBNET
object.
You can use the ALTER SUBNET command to include IPv6 support for a previously
added IPv4 SUBNET. You cannot, however, do the reverse: that is, you cannot create
an IPv6 SUBNET with an ADD command and then alter it to include IPv4 support.
The ALTER SUBNET command is instrumental in the implementation of automatic
tunnelling. For automatic tunneling, you must issue two ALTER commands:
1. One ALTER SUBNET command to enable IPv6 for an IPv4 SUBNET that you
previously configured using an ADD command.
2. Another ALTER SUBNET command to enable the SUBNET object named TUN.
For sample command syntax, see Automatic Tunneling Example on page 8-54.
INET (IPv4) Command Syntax
OUT file-spec
causes any SCF output generated for this command to be directed to the specified
file.
SUBNET $ZZTCP.*.subnet-name
is the name of the SUBNET. The fully-qualified SUBNET name is
$ZZTCP.*.subnet-name (you must alter the SUBNET on all configured
TCP6MONs.) You can substitute the wild card (*) for the subnet-name; doing so
alters all SUBNETs on all TCP6MONs. If you omit the object name, SCF uses the
assumed object name. For information about the ASSUME command, see the
SCF Reference Manual for G-Series RVUs or the SCF Reference Manual for H-
Series RVUs.
ALTER [ /OUT file-spec/ ] [SUBNET $ZZTCP.*.subnet-name ]
[ , FAMILY INET
[ , IPADDRESS ip-addr ]
[ , SUBNETMASK subnet-mask ]
[ , IRDP { ON | OFF } ]
[ , ADDALIAS ip-addr ]
[ , DELETEALIAS ip-addr ]
[ , MTU size ]