tonydotigrtonydotigr Member Posts: 129
Can VLANs utilize packet filtering to enhance network security? My inital guess would be NO, because this is a layer 2 device it only works with frames.

I believe the following are true in regards to VLANS?
- establish broadcast domains in switched networks
- all access to network services based on dept. not location
- can greatly simplify adding, moving, or changing hosts in a network



  • lordylordy Member Posts: 632 ■■■■□□□□□□
    You are right, VLAN's can NOT utilize packet filtering as they are implemented on Layer 2. Packet filtering can only be used if VLANs get interconnected through a Layer 3 device (e.g. a router).

    Your summarization of VLAN capabilities is also correct.

    Working on CCNP: [X] SWITCH --- [ ] ROUTE --- [ ] TSHOOT
    Goal for 2014: RHCA
    Goal for 2015: CCDP
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