The imRAD has two dashboards. One is for the RADIUS and the other is for the DHCP.
Each dashboard switches automatically in 30 seconds and you can stop the switching by clicking again one of the buttons at the top of the dashboard.
DHCP Assignment
It displays how many IP addresses are assigned and in lease for 72 hours.
The chart shows the IP Lease and the Assignment ratio and the lease ratio is always less or equal to the assignment ratio .
Current DHCP Pool Availability Top 5
This list displays the availability of each DHCP pool of the order in which availability is small.
The availability 0 means there are no more IP addresses to assign.
DHCP HPM(Hits per minute) / LPM(Leases per minute)
The HPM stands for Hits per minute and means how many DHCP requests the DHCP server receives in a minute.
The LPM stands for Leas per minute and means how many IP addresses are assigned to the DHCP clients in a minute.
The DHCP server does not reply to all DHCP requests from clients because the IP address for some requests may not find in the DHCP pool.
So the LPM is always less or equal to the HPM.
The HPM that is very greater than the LPM means the DHCP server could not assign IP addresses to many DHCP clients because of lack of IP addresses in a DHCP pool or no DHCP pools for the requests.
In this case, You must check the failure of reply for DHCP requests at the Post DHCP Log.
DHCP IP Address Assignment
It displays the assigned, released, declined, and expired IP addresses in real-time.
You can view the details of the IP address by clicking one of IP address in the list.
Post DHCP
It shows the result of processing the requests of DHCP clients.
By default, it only displays the results of failure and you can change the setting using the CLI.
The failure means that a DHCP server dose not reply to DHCP clients because of the specific reason. You can make sure what the reply means in the DHCP reply results.
RADIUS Accounting
시간별로 RADIUS Accounting을 나타내며 시간별로 얼마나 많은 호스트가 승인되어 네트워크에 연결되어있고 얼마나 많은 트래픽을 발생했는지를 표시합니다.
단, Accountig을 지원하지 않는 NAS 장비가 존재할 경우 그 NAS에 대한 데이터를 표시되지 않습니다.
- Default: Proxy를 통해 승인된 호스트 개수를 의미합니다.
- LOCAL: 로컬 사이트에서 승인된 호스트 개수를 의미합니다.
- 온라인: 현재 온라인 상태의 호스트 개수를 의미합니다.
RADIUS 시간별 인증처리
시간별로 얼마나 많은 클라이언트가 인증 요청을 했는지를 나타냅니다.