ZyXEL Communications MSC1024G Series User Manual page 90

Chapter 4 Tutorials
However, if traffic between IES-1 and M is untagged, make sure that you have the MSC
of IES-1 remove VLAN 1000 from frames transmitted by Ethernet port 2 but add VLAN
1000 to frames received by Ethernet port 2. To configure this:
Click VLAN > VLAN.
Select Enable, type a name and enter 1000 in VID.
Select Fix and clear the Tag checkbox on Ethernet port 2 (enet2).
Click Apply.
Then click Switch > Switch Port Setup > 802.1P/1Q.
Type 1000 in Default VLAN ID on Ehternet port 2 (enet2).
Click Apply.
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MSC1000G/1024G/1224G Series User's Guide