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LIFはDNSポートでリスンしていません

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ontap-9
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core<a>DNS</a><a>2009137017</a>
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環境

  • ONTAP 9
  • DNS

問題

  • ONTAP はDNSロードバランシングを維持します。
  • DNSサーバは、次のエラーを検出します。

connection refused resolving "domain.com/AAAA/IN" 192.168.200.1#53
connection refused resolving "domain.com./A/IN" 192.168.200.1#53

  • LIFはDNSポートでリスンしていません。そして、DNSクエリーがパケットトレースでICMPポート到達不能応答を受信したことを確認します。

1 2022 -04-15 12:00:55.172117 0.000000 192.168.34.6 192.168.0.1 DNS 81標準クエリー0x0673 A domain.com
2 2022 -04-15 12:00:55.172152 0.000035 192.168.200.1 192.168.34.6 ICMP 70宛先到達不能(ポート到達不能)

  • DNSポートに到達できません。

[root@centos ~]# telnet 192.168.200.1 53
Trying 192.168.200.1...
telnet: connect to address 192.168.200.1: Connection refused

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