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2-80 Command Line Interface Commands Reference
ip dhcp gen-option tag data { data_of_the_correct_format_given_data-type }
This command allows you to specify the gen-option data.
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If the data-type is ascii, then any printable character
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If the data-type is hex, then an even number of hex characters (e.g. "0123456789AbcdEf"
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If the data-type is dotted-decimal, then a series of numbers between 0 and 255, separated by a period (.).
IP addresses are generally represented in this form.
ip dhcp gen-option tag priority { low | high }
show ip dhcp gen-option tag priority { low | high }
no ip dhcp gen-option tag
These commands allow you to set, display, or disable whether the default handling behavior for a particular
option should be overridden by the specified gen-option. For most options this is irrelevant, but at least the
following options are handled in the router outside the context of gen-options:
Note:
In most cases overriding the CPE default behavior is not recommended. Also, if the CPE can, but does
not, serve an option in the above list, corresponding low-priority gen-options will be used to serve it.
OPTION_SUBNETMASK
OPTION_ROUTER
OPTION_DNSSERVER
OPTION_DOMAINNAME
OPTION_BCASTADDR
OPTION_ETHERNETENCAP
OPTION_NTPSERVERS
OPTION_NBNSNAMESERVERS
OPTION_NBTCPNODETYPE
OPTION_NBTCPSCOPE
OPTION_LEASETIME
OPTION_RENEWALTIME
OPTION_REBINDINGTIME
OPTION_VID_VENDOR_SPECIFIC (vendor identity)
OPTION_TFTP_SERVER_ADDR
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