Add or edit a Preferred network setting
Refer to the following settings when you add or edit a preferred network setting.
Table: Configuration for Preferred network settings
Property | Description |
|---|
Target | Enter a network address or a host name: NetBackup recognizes the following wildcard entries as addresses: 0.0.0.0
Matches any IPv4 address. 0::0
Matches any IPv6 address.
0/0
Matches the address of any family.
If the target is a host name which resolves to more than one IP address, only the first IP address will be used. If a subnet is not specified, the default is /128 when the address is non-zero and /0
when the address is 0. This applies to both and properties. A subnet of /0 cannot be used with a non-zero address because it effectively negates
all of the bits in the address, making the target or the source match every address.
For example, 0/0.
Do not use the following malformed entries as wildcards: 0/32, 0/64, or 0/128. The left side of the slash must be a legitimate IP address. However, 0/0 may be used, as listed. |
Match | The Match directive: Applies when is a destination address. Indicates that the specified network, address, or host name is preferred for communication with the selected host. Does not reject other networks, addresses, or host names from being selected, even if they do not match. (The Only directive rejects unsuitable targets if they do not match.) Is useful following a Prohibited or a Only directive. When used with other directives, Match indicates to NetBackup to stop rule processing because a suitable match has been found. Can be used with the Source property to indicate source binding.
|
Prohibited | Use the Prohibited directive to exclude or prevent the specified network, address, or host name from being used. The is applied to both the source and the destination addresses. If a
is specified and the Prohibited is indicated, it is ignored but the target is still prohibited. If the matched address is a destination address, evaluation stops. If this was
the only potential destination, the connection is not attempted. If there are
additional potential destinations, they are evaluated starting over with the
first entry. If the matched address is a source address, it is removed from the source binding
list. Caution: On some platforms, prohibiting a local interface may cause
unexpected results when connecting to remote hosts. Prohibiting a local
interface does not affect connections that are internal to the host. |
Only | The Only directive: Applies to destination addresses. Indicates that the specified network, address, or host name that is used for communication with the selected host must be in the specified network. Use the Only directive to prevent any network from being considered other than those specified as Only. If the address that is being evaluated does not match the target, it is not
used and evaluation stops for that address. If the address being evaluated was the only potential
destination, the connection is not attempted. If there is an additional potential
destination, it is evaluated starting over with the first entry. Can be used with the Source property to indicate source binding.
|
Source | Use this property with the Match or the Only directives to identify the local host name, IP addresses, or networks that may be used for source binding. If a subnet is not specified, the default is /128. If this host has an IP address that matches Source, that IP address will be used as the source when connecting to the destination. If the Source is not valid for this host, it is ignored. |
