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12672749
DHCP (DYNAMIC HOST CONFIGURATION PROTOCOL)
Description
configuracion de DHCP
No tags specified
dhcp
cisco ccnp
route 300-101 ccnp
Mind Map by
joseph chiong
, updated more than 1 year ago
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Created by
joseph chiong
almost 7 years ago
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Resource summary
DHCP (DYNAMIC HOST CONFIGURATION PROTOCOL)
DESCRIPCION
Facil administracion
Clientes usan temporalmente IPs
Lo usan los ISPs, conexion: DIAL UP, DSL
OPERACION
Cliente, envia: DHCP-DISCOVER (broadcast- busca server DHCP)
Server, responde: DHCP-OFFER (unicast - ofrece ip, gw, mk, dm, dns, etc)
Cliente, envia: DHCP-REQUEST (unicast-solicita IP)
Server, responde: DHCP-ACK (unicast-concede peticion)
Cliente, envia: ARP-REQUEST (verifica que no haya duplicacion IPs)
Roles routers DHCP CISCO
DHCP SERVER: Asigna IPs y otra informacion
DHCP CLIENT: Recibe IP desde un server dhcp
DHCP RELAY: Redirecciona las peticiones de clientes a un server dhcp
Por default: reenvia
NTP (UDP 37)
TACACS (UDP 49)
DNS (UDP 53)
DHCP (UDP 67 y 68)
TFTP (UDP 69)
NetBIOS name service (UDP 137)
NetBIOS datagram service (UDP 138)
Por configuracion: ip forward-protocol udp <port>
Operaciones en DHCPv6
SIN ESTADO (DHCPv6 SIN ESTADO
opcion1: SLAAC
opcion2: SLAAC + DHCPv6
CON ESTADO (SERVER DHCPv6)
CONFIGURACION
Configuracion DHCP SERVER
R1(config)#ip dhcp pool DIRECCIONES
R1(dhcp-config)#network 192.168.23.0 255.255.255.0
R1(config)#ip dhcp excluded-address 192.168.23.2
R1(config)#ip dhcp excluded-address 192.168.23.1
R1#sh ip dhcp server statistics
R1#sh ip dhcp binding
R1(config)#logging buffered debugging
R1#debug ip dhcp server events
R1#debug ip dhcp server packet
R1(config)#ip dhcp pool NETLEARNING
R1(dhcp-config)#network 192.168.255.0 /24
R1(dhcp-config)#default-router 192.168.255.1
R1(dhcp-config)#dns-server 200.23.242.193 200.23.242.201
R1(dhcp-config)#domain-name netlearning
R1(dhcp-config)#lease 2
R1(dhcp-config)#import all
Redirecciona los parametros configurados a otra interface
R1(config)#ip dhcp excluded-address 192.168.255.1 192.168.255.50
R1#clear ip dhcp binding *
Configurando DHCP RELAY
R3(config-if)#ip helper-address 192.168.12.1
R3(config-if)#int f0/1
R3(config)#ip forward-protocol udp <port>
Configurando DHCP CLIENT
R4(config)#int f0/1
R4(config-if)#ip add dhcp
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