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接続数が多いと、ONTAPファイアウォールエラーipfw.ReachedMaxStatesが発生し、CIFSとNFSが停止します

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Category:
ontap-9
Specialty:
nas
Last Updated:

環境

  • ONTAP 9
  • CIFS
  • NFS

問題

  • イベントipfw.ReachedMaxStatesNFSまたはCIFSの停止を伴う

[Node-01: secd: ipfw.ReachedMaxStates:notice]: The ipfw firewall failed to create dynamic "keep-state" entry. Reason: Dynamic entries for 'keep-state' rules allocation failure, current # of entries: 32768. Recent connections reaching this limit: [10.1.1.10]:29441->[0.0.0.0]:53 (UDP):32768; [10.1.1.10]:12204->[0.0.0.0]:53 (UDP):32768; [10.1.1.10]:51003->[0.0.0.0]:53 (UDP):32768; [10.1.1.10]:17652->[0.0.0.0]:53 (UDP):32768;

  • Ontap は認証のために AD に接続できず、CIFS アクセスの問題が発生し、
  • CIFS/NFS が断続的にアクセス不能になります。
  • 外部のネームサービスを使用できません。エラーが発生しました permission denied

[Node-01   ERROR   secd.cifsAuth.problem: vserver (SVM1) General CIFS authentication problem. Error: User authentication procedure failed
CIFS SMB2 Share mapping - Client Ip = 10.1.1.115
  [  0 ms] Login attempt by domain user 'HBEU\HBEU-SVC-SA-S1SVC' using NTLMv2 style security
  [   3] Failed to connect to 10.1.1.245 for DNS via Source Address 10.1.1.10: Permission denied
  [   4] Failed to connect to 10.1.1.245 for DNS via Source Address 10.1.1.10: Permission denied
**[   5] FAILURE: Unable to contact DNS to discover domain controllers.
  [   5] Unable to make a connection (NetLogon:DOMAIN.AD.CO), Result: RESULT_ERROR_DNS_CANT_REACH_SERVER
  [   5] CIFS authentication failed

 

 

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