well,
for V1 untagged on all ports:
ports 2,3,5 - on vlan tab → vlan mode “strict”, default vlan ID 1. on vlans tab → 1 vlan “always strip” for other vlans - “not a member”
for V12 tagged on 1,4 and untagged for 2,3,5
on Vlan tab - enabled and default vlan - 1(which gives V1 untagged), on vlans tab - for both vlans - “leave as is” (sometimes (depends on other hw) works “with add if missing”)