ipv6 ospf

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Aug 29th, 2007

hi,

wanted to know ipv6 ospf summarization.

skrao

I have this problem too.
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purohit_810 Thu, 08/30/2007 - 04:36

Hi,

Here is the detailed configuration of IPV6 for OSPF.

In case any problem please let me know. Detailed knowledge of IPV6.

Regards,

Dharmesh Purohit

summary-prefix (IPv6 OSPF)

To configure an IPv6 summary prefix, use the summary-prefix command in router configuration mode. To restore the default, use the no form of this command.

summary-prefix prefix [not-advertise | tag tag-value]

no summary-prefix prefix [not-advertise | tag tag-value]

Syntax Description

prefix

IPv6 route prefix for the destination.

not-advertise

(Optional) Suppress routes that match the specified prefix and mask pair. This keyword applies to OSPF only.

tag tag-value

(Optional) Tag value that can be used as a "match" value for controlling redistribution via route maps. This keyword applies to OSPF only.

Command Default

No IPv6 summary prefix is defined.

Command Modes

Router configuration

Command History

Release Modification

12.0(24)S

This command was introduced.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T.

12.2(18)S

This command was integrated into Cisco IOS Release 12.2(18)S.

12.2(28)SB

This command was integrated into Cisco IOS Release 12.2(28)SB.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2(33)SXH

This command was integrated into Cisco IOS Release 12.2(33)SXH.

Usage Guidelines

This command can be used to summarize routers redistributed from other routing protocols. Multiple groups of addresses can be summarized. The metric used to advertise the summary is the smallest metric of all the more specific routes. This command helps reduce the size of the routing table.

Examples

In the following example, the summary prefix FEC0::/24 includes addresses FEC0::/1 through FEC0::/24. Only the address FEC0::/24 is advertised in an external link-state advertisement.

ipv6 router ospf 1

router-id 172.16.3.3

summary-prefix FEC0::/24

redistribute static

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