DHCP

Quiz Pagehttps://networkdirection.net/labsandquizzes/quizzes/juniper-jncia/dhcp

Lab Pagehttps://networkdirection.net/labsandquizzes/labs/jncia-labs/dhcp

Notes

There are two ways of configuring DHCP; Legacy and extended.

Both of these methods are valid. Legacy was created in an older version of Junos, while extended was updated to match across multiple platforms.

DHCP requires an active interface in the VLAN that addresses are being sent to

A juniper device can be configured as a dhcp server or a dhcp relay.

Command Summary

Command Mode Description
set vlans NAME l3-interface INTERFACE configuration Associate a layer-3 interface with a VLAN
set system services dhcp-local-server group NAME interface INTERFACE configuration Enable DHCP server on an interface (extended config)
set access address-assignment pool NAME family inet network SUBNET configuration Create a pool (extended)
set access address-assignment pool NAME family inet range NAME low START-IP high END-IP configuration Create pool range (extended)
set access address-assignment pool NAME family inet dhcp-attributes router IP configuration Sets a gateway (extended)
set access address-assignment pool NAME family inet dhcp-attributes name-server IP configuration Set a DNS server (extended)
show dhcp server binding operational Show dhcp leases (extended)
show dhcp server statistics operational Show dhcp stats (extended)
set system services dhcp pool SUBNET address-range low START-IP high END-IP configuration Configure a DHCP pool (legacy)
set system services dhcp pool POOL routerIP configuration Sets a gateway (legacy)
set system services dhcp name-server IP configuration Set a DNS server (legacy)
show system services dhcp binding operational See dhcp leases (legacy)
show system services dhcp statistics operational Show dhcp stats (legacy)
set forwarding-options helpers bootp server IP configuration Set DHCP relay IP
set forwarding-options helpers bootp interface INTERFACE configuration Set the interface to use when contacting the DHCP server
show helper statistics operational DHCP relay troubleshooting information

Additional References

DHCP for Switches https://www.juniper.net/documentation/en_US/junos/topics/topic-map/dhcp-for-switching-devices.html

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