Block file sharing inside the LAN
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I saw there is a package in pfsense which could help to block file sharing. I would like to hear about it more. I cannot remember its name and if some one knows, please reply.
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Firewall can't block anything from LAN TO LAN if it's filtering traffic from LAN to WAN.
You will need a lot of subnets to filter it.
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marcelloc is right, a Firwall or Gateway can't filter LAN to LAN because it is normally Layer3 device.
You should use something like Asymmetric VLAN, so you dont need a lot of subnets to filter. Ceep it simple
Here is something to read:
ftp://ftp.dlink.es/FAQs/TS_AV.pdf
ftp://ftp.dlink.de/anleitungen/Switch/DGS-12xxT_Howto_de_overlapping_vlan_Rev_D.pdfEdit:
Cisco explains it too
http://www.cisco.com/en/US/docs/switches/connectedgrid/cgs2520/software/release/15_0_2_ed/configuration/guide/cgs_asym-vlan.pdf