Um diagrama de topologia simples do serviço de retransmissão DHCP:
Ideias de serviço de retransmissão DHCP:
**LS1:**建立vlan 10 20
进入各接口分别设置access接口模式,设置对应vlan,开启接口:
Int e0/0/1 port link-type access port default vlan 10 undo shutdown
Int e0/0/2 port link-type access port default vlan 20 undo shutdown
Int e0/0/3 port link-type access port default vlan 10 undo shutdown
Int e0/0/4 port link-type access port default vlan20 undo shutdown
Int g0/0/1 port link-type trunk port trunk allow-pass vlan all(10、20) un sh
**R1:** 开启dhcp:dhcp enable
进入子接口, 设置dot1q termination vid (vlan号), 设置ip, 开启arp请求, 接口下宣告dhcp中继, 选择寻址接口ip, 最后顺便开启接口有备无患:
g0/0/1.10; dot1q termination vid 10; ip add 192.168.10.1 24 ; arp broadcast enable; dhcp select relay; dhcp relay server-ip 14.0.0.2; un sh
g0/0/1.20; dot1q termination vid 20; ip add 192.168.20.1 24 ; arp broadcast enable; dhcp select relay; dhcp relay server-ip 14.0.0.2; un sh
不要忘记设置g0/0/2和g0/0/0的ip: 分别是 ip add 14.0.0.1 24;un sh 和 ip add 12.0.0.1 24;un sh
设置静态路由: ip route-static 15.0.0.0 24 12.0.0.2 (往AR2方向)
因为AR4和AR1是直连路由,所以不需要设置路由了。
**R2:** 先开启dhcp:dhcp enable
进入端口g0/0/0 设置ip 12.0.0.2 24 ;un sh
g0/0/1 设置ip 15.0.0.1 24 ; un sh
端口模式g0/0/1下 宣告dhcp中继服务:dhcp select relay;
接着选择寻址接口ip:dhcp relay server-ip 14.0.0.2
最后不要忘记(末节网路)设置默认路由:ip route-static 0.0.0.0 0.0.0.0 12.0.0.1
**R4:** 二话不说先开启dhcp模式:dhcp enable
进入端口g0/0/0 设置ip 14.0.0.2 24 ; 在接口宣告去哪个地方找服务: dhcp select global ; 顺便开启接口 un sh
——设置地址池: ip pool DHCP15.0.0.0
网络号、子网掩码: network 15.0.0.0 mask 24
网关: gateway-list 15.0.0.1
设置dns: dns-list 8.8.8.8 2.2.2.2
——设置地址池: ip pool DHCPvlan10
网络号、子网掩码: network 192.168.10.0 mask 24
网关: gateway-list 192.168.10.1
设置dns: dns-list 8.8.8.8 2.2.2.2
——设置地址池: ip pool DHCPvlan20
网络号、子网掩码: network 192.168.20.0 mask 24
网关: gateway-list 192.168.20.1
设置dns: dns-list 8.8.8.8 2.2.2.2
最后别忘记(末节网络)设置默认路由:0.0.0.0 0.0.0.0 14.0.0.1
Teste de PC:
> ping ipconfig / renew para obter ip; ipconfig / release ip e
finalmente pode fazer o teste de captura de pacote ...
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Espero ajudá-lo ou inspirá-lo.
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