DHCP can be implemented on networks ranging in size from residential networks to large campus networks and regional ISP networks.
| FactSnippet No. 1,584,057 |
18 Facts About DHCP
1.
2.
DHCP services exist for networks running Internet Protocol version 4, as well as version 6.
| FactSnippet No. 1,584,058 |
3.
DHCP is based on BOOTP, but can dynamically allocate IP addresses from a pool and reclaim them when they are no longer in use.
| FactSnippet No. 1,584,059 |
4.
DHCP was first defined in RFC 1531 in October 1993, but due to errors in the editorial process was almost immediately reissued as RFC 1541.
| FactSnippet No. 1,584,060 |
5.
The DHCP server manages a pool of IP addresses and information about client configuration parameters such as default gateway, domain name, the name servers, and time servers.
| FactSnippet No. 1,584,061 |
7.
DHCP employs a connectionless service model, using the User Datagram Protocol.
| FactSnippet No. 1,584,063 |
8.
DHCP operations fall into four phases: server discovery, IP lease offer, IP lease request, and IP lease acknowledgement.
| FactSnippet No. 1,584,064 |
9.
DHCP server determines the configuration based on the client's hardware address as specified in the CHADDR field.
| FactSnippet No. 1,584,065 |
10.
When other DHCP servers receive this message, they withdraw any offers that they have made to the client and return their offered IP address to the pool of available addresses.
| FactSnippet No. 1,584,066 |
11.
RFC 2132 describes the available DHCP options defined by Internet Assigned Numbers Authority - DHCP and BOOTP PARAMETERS.
| FactSnippet No. 1,584,067 |
12.
The IP addresses of the DHCP servers are manually configured in the relay agent.
| FactSnippet No. 1,584,068 |
13.
The DHCP server uses the GIADDR-value to determine the subnet, and subsequently the corresponding address pool, from which to allocate an IP address.
| FactSnippet No. 1,584,069 |
14.
Client moves through DHCP states depending on how the server responds to the messages that the client sends.
| FactSnippet No. 1,584,070 |
15.
DHCP clients are allocated leases that last for some period of time.
| FactSnippet No. 1,584,071 |
16.
Basic methodology of DHCP was developed for networks based on Internet Protocol version 4.
| FactSnippet No. 1,584,072 |
18.
DHCP server has no secure mechanism for authenticating the client, clients can gain unauthorized access to IP addresses by presenting credentials, such as client identifiers, that belong to other DHCP clients.
| FactSnippet No. 1,584,074 |