VLANの設定ミスによりCIFSサーバーの作成が失敗する

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環境

ONTAP 9
CIFS / SMB
仮想 LAN（VLAN）

問題

新しい CIFS サーバーの作成がエラーで失敗します。System Manager では次のようになります。FAILURE: Unable to contact DNS to discover domain ** controllers.
EMS ログ:

[CLUSTER-01: secd: secd.unexpectedFailure:error]: Unexpected SecD failure in Vserver "SVM_CIFS". Details: Error: Machine account creation procedure failed   [  6 ms] Trying to create machine account 'SVM_CIFS' in 'DOMAIN.LOCAL' for Vserver 'SVM_CIFS'   [  2025] Failed to connect to 10.0.0.100 for DNS via Source Address 10.0.0.50: Operation timed out  [ 10044] Unable to contact DNS to discover domain controllers. [ 10045] No servers available for MS_LDAP_AD, vserver: 3, domain: DOMAIN.LOCAL

SECDログ：

[ 14076] Failed to connect to 10.0.0.100 for DNS via Source Address 10.0.0.50: Operation timed out
 [ 15077] Failed to connect to 10.0.0.101 for DNS via Source Address 10.0.0.50: Operation timed out
 [ 15079] Unable to contact DNS to discover domain controllers.

SVM LIF から DNS サーバーに ping できません。