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Cisco IOS-XE ipv6自動設定Configのコピペ(RA,RDNSS)

Posted at

  • 最近のIOS-XEではRAにのせてDNSサーバーの情報を配れる(RDNSSと呼ばれる。RF8106)
    • これによってDHCPやDHCPv6が無くてもv6のネームサーバーを広告できる。。
  • 設定方法忘れがちなので備忘録

環境

  • ASR1001-X
  • Cisco IOS XE Software, Version 16.05.01b

答え

各Interafaceにこれを流す。

 ipv6 address FE80::1 link-local
 ipv6 address IPv6ネットワークアドレス::1/64
 ipv6 nd prefix IPv6ネットワークアドレス::1/64
 ipv6 nd ra dns server 2001:4860:4860::8888 # RDNSS
 ipv6 nd ra dns server 2001:4860:4860::8844 # RDNSS

ちなみに

  • ipv6 address FE80::1 link-localを設定しなくてもこの検証環境であればSLAACによりリンクローカルアドレスを名乗れた。

参考

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