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DHCP snooping S3300 switches
I'm thinking about enabling DHCP snooping on my Netgear switches. This is my first time, and I have a few questions to make sure I'm not doing anything wrong. I have 4 VLANs in my network.
- I have a total of 15 Netgear switches, and some UniFi. Do I enable DHCP snooping on all of them or only on the core switches?
- I have a Voice VLAN also, do I add it to the DHCP snooping?
- Do you recommend I enable DHCP snooping to make my network more safe? I understand DHCP snooping is done to prevent rogue dhcp servers.
- Any recommendations?
https://www.downloads.netgear.com/files/GDC/S3300/S3300_SWA_EN.pdf
By rule of thumb:
- Enable DHCP Snooping on all switches
- Define the uplink interfaces for the DHCP snooping
- Define the DHCP server MAC on each VLAN to establish the trust
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One more question. Lets say I have VLANS 2,4. What if I enable DHCP snooping for those VLANs, but the rouge DHCP server is also on VLAN 2 or 4?
Watched this YouTube video, seems straight forward. Although not on a Netgear switch, but it shouldn't matter right?
https://www.youtube.com/watch?v=2eNsoS9Ri6w&ab_channel=NorthwoodsPS
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