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  • Understanding VLAN tagging and untagging of ports
    Only trunk ports can have more than one VLAN -- zero or one can be untagged (native), while all the rest must be tagged If you want VL 100 on a port, you must decide if you want to send it tagged or untagged-- that is, 802 1q format or 802 3 format Most end hosts only understand 802 3, i e untagged format –
  • Tagged and Untagged - Network Engineering Stack Exchange
    If a trunk port is configured with VLAN1 untagged, and VLAN 2 tagged, then all devices that use untagged frames (PCs etc) will communicate on VLAN 1 and be blissfully unaware of any other VLANs If a device can tag frames with a PVID =2, then it can communicate on VLAN 2
  • Tagged vs Untagged Question - Network Engineering Stack Exchange
    To clarify the the "rejected" traffic, I didn't clearly explain that Image 1 was to show that if the switch did not have the v50 tagged or untagged on that port, it would not allow that traffic through In the second image, I was trying to depict what would happen to untagged traffic if the port did not have an untagged vlan associated with it
  • What is the difference between an untagged port and a tagged port?
    Not to confuse the issue, but a tagged port generally will have zero or one untagged VLAN assigned to it as well An untagged port is more specifically one on which no traffic is 802 1Q tagged In some environments (Solaris, some HP switches, etc), a trunk is used to refer to link aggregation, or what Cisco calls etherchannel
  • Why and how are Ethernet Vlans tagged?
    ingress untagged: this is where the native vlan of the port comes in If the switch has multiple VLANs configured, you have to tell the switch to which VLAN an incoming untagged packet belongs ; ingress tagged: well, if it comes in tagged, then it's tagged, and you can't do much about it
  • Managed Switch, Setting up VLAN Tagged, Untagged, allowed tagged only . . .
    Generally, you need to use the same VLAN scheme on both sides - hosts don't use VLAN tags, so access ports are assigned an untagged VLAN Your question doesn't specify what you've configured on the router, although confirmed that by connecting to simple switch and connecting devices to that switch seems to indicate untagged ports
  • Behaviour of untagged traffic on TRUNK and ACCESS VLAN ports
    As Adam stated, generally in a well designed network, you should not be receiving untagged frames on a trunk port Based on your description, you only want and expect to send and receive VLAN 24 on the uplink port Thus, configure the port as an access port in VLAN 24: interface gig0 1 switchport access vlan 24
  • cisco - Is the default VLAN simply the default native (untagged) VLAN . . .
    Leave the Native VLAN at its default (VLAN1) On the uplink switch, set the port as a trunk port And set its Native VLAN to the VLAN you want the lower switch to be a part of Since the lower switch will send traffic to the upper switch untagged, the upper switch will receive it and associate it with what it considers the Native VLAN
  • Untagged VLAN to Tagged VLAN - Network Engineering Stack Exchange
    When you set a port to "Untagged VLAN 10" (switchport access vlan 10 in Cisco-speak), a frame entering that port is associated with VLAN 10 If the frame is forward out a port that is tagged, the frame is converted to 802 1q format, which includes a VLAN tag
  • vlan - My tagged vs untagged configuration in my switch is not working . . .
    On the WAP ports, just use the guest VLAN untagged However, this puts your WAPs' management completely inside the guest network If you want to avoid that, use the same VLAN trunks - production untagged, guest tagged - with the WAP ports (on both switch and WAP side) and associate the guest VLAN with the guest SSID





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