Configuring Inbound Route Filters for IPv4 OSPFv2

Note - These commands are available starting from R81.10.05.

Important - In a Cluster, you must configure all the Cluster Members in the same way.

OSPF inbound route filters only apply to OSPF ASE routes.

Intra-area and inter-area OSPF routes are always installed.

The default behavior is to accept all OSPF ASE routes.

Syntax

set inbound-route-filter ospf2 [instance <OSPF Instance Number>]

accept-all-ipv4

rank {<0-255> | default}

restrict-all-ipv4

route <IPv4 Address>/<Mask Length>

accept

between <Start IPv4 Mask Length> and <End IPv4 Mask Length> on

between <Start IPv4 Mask Length> and <End IPv4 Mask Length> restrict on

exact on

exact restrict on

normal on

normal restrict on

off

rank {<0-255> | default}

refines on

refines restrict on

Parameters

Parameter	Description
`set inbound-route-filter ospf2 [instance <OSPF Instance Number>]`	Configures the IPv4 OSPFv2 Import Policy (for the specified OSPF instance).
`accept-all-ipv4`	Accepts all IPv4 routes that match this filter, except those route that are explicitly restricted by a more specific rule. Accepting routes is the default behavior, unless the "restrict" option is configured.
`rank {<0-255> \| default}`	Assigns a rank to all incoming routes that match this filter, except those that match a more specific rule with a different rank configured. Range: 0-255, or default Default: The protocol rank configured for "`OSPFASE`". Run the "`show protocol-rank`" command.
`restrict-all-ipv4`	Rejects all IPv4 routes that match this filter, except those that match a more specific filter that is set to "accept".
`route <IPv4 Address>/<Mask Length>`	Configures import policy for a specific network. Range: Dotted-quad ([0-255].[0-255].[0-255].[0-255]) / [0-32] Default: None
`route <IPv4 Address>/<Mask Length> accept`	Accepts this route.
`route <IPv4 Address>/<IPv4 Mask Length> between <Start IPv4 Mask Length> and <End IPv4 Mask Length> on`	There are different mechanisms, by which routes can be matched against the configured subnet. A match type must be configured following the subnet. Accepts any route with prefix equal to the specified network, whose mask length falls within a particular range.
`route <IPv4 Address>/<IPv4 Mask Length> between <Start IPv4 Mask Length> and <End IPv4 Mask Length> restrict on`	There are different mechanisms, by which routes can be matched against the configured subnet. A match type must be configured following the subnet. Rejects all routes that match this policy rule, except those that match a more specific filter that is set to "accept".
`route <IPv4 Address>/<Mask Length> exact on`	There are different mechanisms, by which routes can be matched against the configured subnet. A match type must be configured following the subnet. Accepts only routes with prefix and mask length exactly equal to the specified network.
`route <IPv4 Address>/<Mask Length> exact restrict on`	There are different mechanisms, by which routes can be matched against the configured subnet. A match type must be configured following the subnet. Rejects all routes that match this policy rule, except those that match a more specific filter that is set to "accept".
`route <IPv4 Address>/<Mask Length> normal on`	There are different mechanisms, by which routes can be matched against the configured subnet. A match type must be configured following the subnet. Accepts any route equal to or contained within the specified network.
`route <IPv4 Address>/<Mask Length> normal restrict on`	There are different mechanisms, by which routes can be matched against the configured subnet. A match type must be configured following the subnet. Rejects all routes that match this policy rule, except those that match a more specific filter that is set to "accept".
`route <IPv4 Address>/<Mask Length> off`	Removes this address filter from this import policy.
`route <IPv4 Address>/<Mask Length> rank {<0-255> \| default}`	Assigns a rank to all incoming routes that match this filter, except those that match a more specific rule with a different rank configured. Range: 0-255, or default Default: The protocol rank configured for "`OSPFASE`". Run the "`show protocol-rank`" command.
`route <IPv4 Address>/<Mask Length> refines on`	There are different mechanisms, by which routes can be matched against the configured subnet. A match type must be configured following the subnet. Matches routes contained within the specified network, but only more specific (for example, with a greater mask length).
`route <IPv4 Address>/<Mask Length> refines restrict on`	There are different mechanisms, by which routes can be matched against the configured subnet. A match type must be configured following the subnet. Rejects all routes that match this policy rule, except those that match a more specific filter that is set to "accept".