Use the IPv6_RIP_FILTER statement to allow for the specification of routes that are not to be sent or received over IPv6 RIP interfaces. The IPv6_RIP_Filter statement can be coded stand-alone in the OMPROUTE configuration file (nosend and noreceive only) to apply to all configured IPv6 RIP interfaces.
Parameters
- type
- The type can be any of the following values:
- nosend
- Specifies that routes matching the dest and prefix_len are not to be sent over IPv6 RIP interfaces. This option serves as an IPv6 RIP output filter.
- noreceive
- Specifies that routes matching the dest and prefix_len are to be ignored in messages received over IPv6 RIP interfaces. This option serves as an IPv6 RIP input filter.
- dest
- The dest specifies the destination route in colon-hexadecimal
format. Alternatively, an asterisk (*), which matches any IPv6
destination, can be coded to filter out all routes sent or received
over an interface. The use of the asterisk is also referred to as
a blackhole filter. This should be used in conjunction with either
additional send or receive filters to allow only certain routes to
be received, or advertised over an interface or set of interfaces.
Tip: The blackhole nosend filter does not filter out the sending of the default route when the IPv6_Originate_RIP_Default statement is also configured.
- prefix_len
- The prefix_len specifies the number of significant bits in the destination to be filtered. If not coded, the default prefix_len is 128, meaning apply the filter to the dest as coded. Coding the prefix_len has no meaning and is not valid if the dest is coded as an asterisk (*) for a blackhole filter.