topic multiple default gateway on NET APP 2520 in ONTAP Discussions

multiple default gateway on NET APP 2520

zeehope — Sun, 05 Sep 2021 22:14:54 GMT

Hi everybody,

I am new to NET APP so bear with me.

Let's say we have two LIF:

LIG-MGMT 10.10.10.10/24 gateway 10.10.10.1 e0c

LIF-CIF 192.168.1.10/24 gateway 192.168.1.1 e0d

DNS server is 1.1.1.1

Which gateway will NET APP use to reach 1.1.1.1? is it gateway associated with MGMT-LIF or gateway associated with LIF-CIF?

Thanks!!

Re: multiple default gateway on NET APP 2520

Ontapforrum — Sun, 05 Sep 2021 23:58:48 GMT

You haven't mentioned ontap version here, b'cos the DNS reachability requirement has changed since 8.3.

Beginning with Data ONTAP 8.3, each Data SVM must be configured with its assigned DNS servers. This includes ensuring that DNS servers configured on the Data SVM are accessible from LIFs hosted by that SVM.

In case the filer is running 8.3 or later, Data SVM can use any available gateway that can reach the DNS server IP? However, the recommended practice is to use one separate mgmt LIF (data protocol=none) per data SVM to talk to DNS (or other external mgmt services) server.

You can verify the DNS reachability via these commands, try both LIFs.

::> network ping -vserver <vserver> -lif <lif> -destination 1.1.1.1 (DNS IP)
::> dns check -vserver <vsever>

Useful kb:
How to configure DNS per SVM for versions later than clustered Data ONTAP 8.2.1
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/How_to_configure_DNS_per_SVM_for_versions_later_than_clustered_Data_ONTAP_8.2.1

Re: multiple default gateway on NET APP 2520

wareer — Thu, 20 Feb 2025 05:32:31 GMT

Before creating an NFS or SMB server, you must configure a DNS service for the SVMS, and each SVMS uses its own data lif, and you have a certain SVMS lif that can ping the DNS server，
I hope you found this configuration document helpful：https://docs.netapp.com/zh-cn/ontap/networking/configure_dns_services_manual.html#%E5%9C%A8-svm-%E4%B8%8A%E9%85%8D%E7%BD%AE%E5%8A%A8%E6%80%81-dns