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| Sun Ethernet Fabric Operating System ### OSPFv3 Administration Guide

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## Configure Address Range Aggregation

This example configures address range aggregation in SEFOS8 as AS-external.

1. Enter Global Configuration mode in SEFOS8.

       SEFOS# configure terminal

2. Enable OSPF globally in SEFOS8.

       SEFOS(config)# ipv6 router ospf

3. Configure the OSPF router ID.

       SEFOS(config-router)# router-id 10.0.0.8

4. Configure the router as an ASBR router.

       SEFOS(config-router)# asbr router
       SEFOS(config-router)# redistribute static
       SEFOS(config-router)# exit

5. Add static routes.

       SEFOS(config)# ipv6 route 3333::2222:0:0 96 fec0::2856:0:1
       SEFOS(config)# ipv6 route 3333::4444:0:0  96 fec0::2886:0:10

6. View the database.

       SEFOS# show ipv6 ospf database as-external detail

       Age: 0   Seconds            LS Type: External Lsa
       Link State Id: 0.0.0.1      Adv Rtr Id: 10.0.0.8
       Sequence: 0x80000001        Checksum: 0x593a    Length: 56
       Metric Type: Ext Type2      Metric: 0xa
       Prefix Length: 96            Prefix Options: 0x00
       Referenced LS Type: 0
       Addres Prefix: 3333::2222:0:0
       Fw Addres Prefix: 3333::2222:fec0:0
       External Route Tag: 0

       Age: 0   Seconds            LS Type: External Lsa
       Link State Id: 0.0.0.2      Adv Rtr Id: 10.0.0.8
       Sequence: 0x80000001        Checksum: 0x1f80    Length: 40
       Metric Type: Ext Type2      Metric: 0xa
       Prefix Length: 96            Prefix Options: 0x00
       Referenced LS Type: 0
       Addres Prefix: 3333::4444:0:0
       Fw Addres Prefix: 3333::4444:0:0
       External Route Tag: 0

7. Configure the entire summary for this `3333::` address range.

       SEFOS(config-router)# area 0.0.0.0 summary-prefix 3333::  64 advertise

8. View the configuration results in SEFOS8.

       SEFOS# show ipv6 ospf database as-external detail

       Age: 3   Seconds            LS Type: External Lsa
       Link State Id: 0.0.0.3      Adv Rtr Id: 10.0.0.8
       Sequence: 0x80000001        Checksum: 0xb496    Length: 36
       Metric Type: Ext Type2      Metric: 0xa
       Prefix Length: 64           Prefix Options: 0x00
       Referenced LS Type: 0
       Addres Prefix: 3333::
       Fw Addres Prefix: 3333::
       External Route Tag: 0

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