Related Documentation
DHCP Attributes for Address-Assignment Pools
Table 1 describes the DHCP client attributes that you can use with the dhcp-attributes statement when you configure address-assignment pools. Table 2 describes the DHCPv6 client attributes for configuring IPv6 address-assignment pools.
Table 1: DHCP Attributes
Attribute | Description | DHCP Option |
|---|---|---|
Boot filename advertised to the client, and used by the client to complete configuration. | 67 | |
Boot server containing the boot file. | 66 | |
Domain in which clients search for a DHCP server host. | 15 | |
Grace period offered with the lease. | – | |
Maximum lease time allowed by the DHCP server. | 51 | |
IP address of DNS server to which clients can send DNS queries. | 6 | |
NetBIOS node type. | 46 | |
User-defined options. | – | |
Maps option 82 value to named address range. | – | |
IP address for routers on the subnetwork. | 3 | |
IP address used as the DHCP source address | 54 | |
Trivial File Transfer Protocol (TFTP) server that the client uses to obtain the client configuration file. | 150 | |
IP address of the Windows NetBIOS name server. | 44 |
Table 2: DHCPv6 Attributes
Attribute | Description | DHCPv6 Option |
|---|---|---|
IPv6 address of DNS server to which clients can send DNS queries. | 23 | |
Grace period offered with the lease. | – | |
Maximum lease time allowed by the DHCP server. | – | |
User-defined options. | – | |
IPv6 address of SIP outbound proxy server. | 22 | |
Domain name of the SIP outbound proxy server. | 21 |
