DHCP Starvation and Rogue DHCP Server: A Snooping Lab
Exhaust a 12-address DHCP pool, observe a rogue gateway, fix an untrusted snooping uplink, and verify bindings, burst isolation, and rogue OFFER drops.
DHCP on Cisco IOS XE and Linux, from the four-packet lease to relay agents and snooping. Articles tagged DHCP cover pool design, ip helper-address, option decoding from real captures, and the failures that leave clients unaddressed.
Exhaust a 12-address DHCP pool, observe a rogue gateway, fix an untrusted snooping uplink, and verify bindings, burst isolation, and rogue OFFER drops.
Discover, Offer, Request, Ack. You can recite DORA in your sleep, and it still will not help you the day a client comes up with a 169.254 address and the server insists the pool is fine. What helps is