Netgear M4200-10MG-PoE+ (GSM4210P) - Multigigabit Managed Switch with 8*2.5G and 2x10G SFP+ Layer 3 관리자 가이드
![Netgear](https://files.manualsbrain.com/attachments/cf1ad5de25a3f8d6c88ef0ab489c1b137eebe11f/common/fit/150/50/17742d1e0cdacf24edeb88c30757620088415c5f7699f69b4517262e21e0/brand_logo.jpeg)
Security Management
343
Managed Switches
Find a Rogue DHCP Server
If you enable DHCP snooping, you can find a rogue DHCP server in the network.
CLI: Find a Rogue DHCP server
1.
Check the statistics on the untrusted ports.
In the previous command output, the messages in the DHCP Server Msgs Rec’d column
for port 1/0/27 increased, indicating that the port is connected to a rogue DHCP server.
for port 1/0/27 increased, indicating that the port is connected to a rogue DHCP server.
(NETGEAR) #show ip dhcp snooping statistics
Interface MAC Verify Client Ifc DHCP Server
Failures Mismatch Msgs Rec'd
----------- ---------- ---------- -----------
1/0/1 0 0 0
1/0/2 0 0 0
1/0/3 0 0 0
1/0/4 0 0 0
1/0/5 0 0 0
1/0/6 0 0 0
1/0/7 0 0 0
1/0/8 0 0 0
1/0/9 0 0 0
1/0/10 0 0 0
1/0/11 0 0 0
1/0/12 0 0 0
1/0/13 0 0 0
1/0/14 0 0 0
1/0/15 0 0 0
1/0/16 0 0 0
1/0/17 0 0 0
1/0/18 0 0 0
1/0/19 0 0 0
1/0/20 0 0 0
1/0/21 0 0 0
1/0/22 0 0 0
1/0/23 0 0 0
1/0/24 0 0 0
1/0/25 0 0 0
1/0/26 0 0 0
1/0/27 3704 0 4634