DHCP relay agent
E844550
A DHCP relay agent is a network device or software component that forwards DHCP messages between clients and servers across different IP subnets, enabling centralized address management in larger networks.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
DHCP infrastructure element
ⓘ
network component ⓘ network function ⓘ |
| abbreviation | DHCP relay NERFINISHED ⓘ |
| addsOption |
DHCP option 82
ⓘ
Relay Agent Information Option NERFINISHED ⓘ |
| avoidsRequirement | DHCP server on every subnet ⓘ |
| canBeImplementedAs |
layer 3 switch feature
ⓘ
router feature ⓘ server software process ⓘ |
| category |
IP address management
ⓘ
computer networking ⓘ |
| configuredWith | IP address of DHCP server ⓘ |
| definedIn |
RFC 1542
ⓘ
RFC 2131 NERFINISHED ⓘ RFC 3046 ⓘ |
| enables | centralized DHCP servers for multiple subnets ⓘ |
| fieldUsed | giaddr ⓘ |
| forwardsMessageType |
DHCPACK
ⓘ
DHCPDECLINE ⓘ DHCPDISCOVER ⓘ DHCPINFORM ⓘ DHCPNAK ⓘ DHCPOFFER ⓘ DHCPRELEASE ⓘ DHCPREQUEST ⓘ |
| giaddrMeaning | gateway IP address ⓘ |
| hasPurpose |
enable DHCP across different IP subnets
ⓘ
forward DHCP messages between clients and servers ⓘ support centralized IP address management ⓘ |
| operatesAtLayer | IP layer ⓘ |
| operatesOn | IP subnets ⓘ |
| relatedTo |
DHCP client
ⓘ
DHCP server NERFINISHED ⓘ |
| requires | IP routing between client subnet and DHCP server subnet ⓘ |
| securityConsideration |
can insert identifying information about access circuit
ⓘ
may be used to enforce DHCP snooping policies ⓘ |
| setsField | giaddr to indicate client subnet ⓘ |
| supportsAddressFamily |
IPv4
ⓘ
IPv6 (DHCPv6 relay) ⓘ |
| typicalDeployment |
campus networks
ⓘ
enterprise networks ⓘ service provider access networks ⓘ |
| usesClientPort | 68 ⓘ |
| usesIPProtocolNumber | 17 ⓘ |
| usesProtocol | Dynamic Host Configuration Protocol NERFINISHED ⓘ |
| usesServerPort | 67 ⓘ |
| usesTransportProtocol | UDP NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.