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LIFがDNSポートでリスンしなくなりました

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ontap-9
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環境

  • ONTAP 9
  • DNS

問題

  • ONTAPはDNSの負荷分散を維持します。
  • DNSサーバで次のエラーが検出されました。

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ポートをリスンしていません。およびパケットトレースで、DNSクエリーが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    192.168.34.6 192.168.200.1    DNS   81   標準クエリ0x0673 a domain.com
2    2022-04-15 12:00:55.172152   0.000035    192.168.34.6    ICMP  70   Destination unreachable(Port unreachable)

  • 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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