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I am currently looking at dhcp snooping on EX4300 switches. I have a few questions. If someone plugs in a dhcp server on an untrusted port. Where would I look to find out that something was blocked. Any counters or logs to check that out? Using what commands.
dhcp snooping is configured under each vlan. Any easy way to apply the same configuration to large amount of vlans? Any example?
The running statistics are shown with
show dhcp snooping statistics
The current status is monitored with
show dhcp snooping binding
The info you provided is when the client receives an address.
What I am interested in is more when a rogue dhcp is connected. I found in /var/log/messages entries when the dhcp server is being blocked. Was wondering if a command would show me that some rogue dhcp server was connected and to which port without searching through the logs. I did not see any info in the statistics about blocked answers.