Vlan 1 in LAN and WAN interface

foreverlearningforeverlearning Member Posts: 42 ■■■□□□□□□□
Isnt there a conflict when I put vlan 1 in LAN interface and then the WAN interface for the isp also uses vlan 1?
E.g. lan interface :
And then wan interface also vlan 1 but public ip
e.g next hop

Some people say wan interface is layer 3 but I saw in some equipment that it needs me to put access vlan 1
So I am confused. 



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