ProCurve 2910al switch VLANs

[leonic]

Hi guys,

I have a Procurve 2910al switch with 3 VLANs:
VLAN 10: 192.168.10.0/24
VLAN 20: 192.168.20.0/24

VLAN 30: 192.168.30.0/24

Is it possible to allow the traffic from VLAN 10 to VLAN 20 & VLAN 30 but block the traffic from VLAN 20 & VLAN 30 to VLAN 10 ?

Does someone has a working example (configs) ?

Thank you for your time and help!

[Arimo]

Hi leonic

TCP traffic is bi-directional, there's a packet sent, and acknowledgement. If you allow traffic from .10 to .20 but deny traffic to the opposite direction, the acknowledgements or re-send requests won't receive the device in .10. Consequently there will be no connection between the hosts.

If the traffic is UDP only, it's unidirectional, no acknlowledgements etc will be required. In that case yes, this is achievable just by creating appropriate ACLs.