Configuring an Internal DHCP Server Policy File Parameters and Syntax
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 22-26
7Lease
Expiration
SleepTime
Lease
Expiration
SleepTime = 
120000
60000 
msecs
Specifies the time interval in milli seconds after 
which the lease expiration processing occurs.
Note: This value must not be less than 1 minute.
8MaxPending
Seconds
MaxPending
Seconds = 20
10 Specifies the number of seconds that an offered lease 
remains in a pending state. 
When a client sends a DHCPDISCOVER request, the 
DHCP server responds with a DHCPOFFER and 
offers an IP address. The address is marked as 
pending for the specified period of time. 
9Max
Unavailable
Time
Max
Unavailable
Time = 14000
86400 Determines the period of time that an IP address is 
not available after a DHCPDECLINE or ping packet 
is sent as response. After this time period, the server 
considers this address as available.
10 Nak
Unknown
Clients
NakUnknown
Clients = 
False
True Prevents the DHCP server from providing DHCP 
addresses to clients which are not in the defined 
subnets of the DHCP server. 
This policy must be set to False in environments 
where multiple DHCP services are active in the same 
subnet or subnets.
11 NackDhcp
RequestsFor
Duplicates
NackDhcp
RequestsFor
Duplicates
= False
True If this value is set to True, the DHCP server sends a 
NAK if a RENEW/REBIND request or SELECTING 
request is received for an IP address already owned 
by another hardware interface. 
If this value is set to False, the invalid request is 
dropped.
12 PingAttempts
Ping
Attempts = 3
1 Specifies the number of attempts to ping through 
which DHCP server determines if the IP address is 
already in use.
13 PingDelay
PingDelay =
200
N/A Specifies the delay in milliseconds between two 
consecutive pings to check the IP address usage in the 
network.
14 PingSendDelay
PingSend
Delay = 1000
500 Specifies the number of milliseconds between 
subsequent pings. This is applicable only if the ping 
attempts are greater than 1. If the value of 
PingAttempts is greater than 1, then the 
PingSendDelay overrides the PingDelay policy.
15 PingRetention
Ping
Retention
= 200
0 Specifies the number of seconds for which a ping is 
valid. If a ping is attempted and no response is 
returned, then the address is considered to be 
available. During the ping retention period, other ping 
requests are ignored.
Num Policy Usage
Default 
Value
Description