Deployment Guide

478 | Dynamic Host Configuration Protocol (DHCP)
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Parameters
Command Mode
CONFIGURATION
Default
Disabled
Command
History
lease
c s
Specify a lease time for the addresses in a pool.
Syntax
lease {days [hours] [minutes] | infinite}
Parameters
Command Mode
DHCP <POOL>
Default
24 hours
Command
History
netbios-name-server
c s
Specify the NetBIOS Windows Internet Naming Service (WINS) name servers, in order of preference,
that are available to Microsoft Dynamic Host Configuration Protocol (DHCP) clients.
Syntax
netbios-name-server address [address2...address8]
Parameters
Command Mode
DHCP <POOL>
trust-downstream
Configure the system to trust Option 82 when it is received from the
previous-hop router.
vrf
(C-Series only) Enter the keyword vrf to include VRF related information in
the Option 82.
Note: This configuration enables the relay agent to include VRF related
information when it forwards the broadcasts from client to DHCP
server.
Version 8.4.7.0 Introduced support for VRF on C-Series.
Version 8.2.1.0 Introduced on C-Series and S-Series.
days
Enter the number of days of the lease.
Range: 0-31
hours
Enter the number of hours of the lease.
Range: 0-23
minutes
Enter the number of minutes of the lease.
Range: 0-59
infinite
Specify that the lease never expires.
Version 8.2.1.0 Introduced on C-Series and S-Series.
address
Enter the address of the NETBIOS name server. You may enter up to 8, in order of
preference.