Hi All
Tried implementing DHCP snooping on a stack of Cisco SG550 switches today and it caused issues.
Basically we have two SG550’s in a stack, they are layer 3 and the DHCP server is also connected to this stack.
Set the port going to DHCP as trusted and everything else as untrusted. When I enabled snooping on a VLAN (only did one to test) and all was fine for a while, I started to see the binding database populate then eventually random people (about half the clients) started failing to get a DHCP address.
Anyone have any experience as to why. I thought that if I had set the DHCP server port to trusted it would be fine.
TIA Ben
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