ZyXEL Communications GS1920 User Handbook Manual page 63

Verify
1. According to the scenario, VLAN 100 PC1, PC2 & PC3 can't communicate
with each other, but they can communicate with Port 24 (uplink port) to
access the internet.
PC1 can't ping PC2
PC1 can't ping PC3
PC1 can ping uplink port 24.
www.zyxel.com
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