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VLAN

By mdelacruz ·
cisco 2900 switch configured with two vlan.
What is the possibility that someone can hack from the first vlan to the second vlan
on thesame switch?

Thanks,

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VLAN

by eBob In reply to VLAN

High.

VLANs are not particularly security oriented devices. They are meant for defining groups of systems to more efficiently direct communications. But they are not there to PREVENT communications between systems on different VLANs.

Most of this has to do with containing Ethernet broadcasts.

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VLAN

by mdelacruz In reply to VLAN

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by McKayTech In reply to VLAN

I would say the risk depends on how the rest of the network is set up. If the VLANs have some common point (e.g. a core router/switch), that common point becomes the focus for an attack and the risk is related to how well-written your ACLs are.

As another answer correctly pointed out, a VLAN is not primarily a security device but if there is no common point between the VLANs, I would say the biggest risk would be that of someone hacking the switch itself.

paul

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by mdelacruz In reply to VLAN

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