Layer 2 Switch DNS Resolution Issue

Zyxel_Adam

Users may encounter an issue when using a switch to ping domain names (e.g., yahoo.com), though they can ping IP addresses directly.

The switch is designed to use the default management VLAN for DNS queries. When attempting to resolve domain names using a non-default VLAN (like VLAN 10), the switch fails to receive a response from the DNS server, leading to unsuccessful domain name resolution.

Solution:

• Use default Management VLAN 1 to ping domain names.
• Change Management VLAN to another VLAN ID if you don't want to use VLAN 1 to resolve Domain names.