思科路由器1841C如何设置，高手来回答下谢谢 急
配置ACL
access-list 1 permit 192.168.0.0 0.0.0.255
配置NAT
ip nat inside source list 1 int XX overload
这里的int XX，是本地出口路由器与运营商连接的端口
指定outside
int xx
ip nat outside
这里的XX同上
指定inside
int yy
ip nat inside
这里的YY接口，是下联PC或LAN的接口（PC网关）
HXrouter#show run
Building configuration...
Current configuration : 1503 bytes
!
! Last configuration change at 07:41:21 UTC Sat Mar 21 2015 by hailong
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname HXrouter
!
boot-start-marker
boot-end-marker
!
no aaa new-model
ip cef
!
no ip domain lookup
no ipv6 cef
ipv6 multicast rpf use-bgp
!
multilink bundle-name authenticated
!
username hailong privilege 15 password 0 hailong
username cisco privilege 15 password 0 cisco
!
tEthernet0/1
no ip address
media-type rj45
speed auto
duplex auto
negotiation auto
!
interface GigabitEthernet0/2
description *CNC1*
ip address 220.33.76.19 255.255.255.248
ip nat outside
media-type rj45
speed auto
duplex auto
negotiation auto
!
interface GigabitEthernet0/3
ip address 10.10.2.1 255.255.255.0
ip nat inside
media-type rj45
speed auto
duplex auto
negotiation auto
!
ip nat inside source list nat interface GigabitEthernet0/2 overload
ip nat inside source static tcp 192.168.2.104 9080 220.33.76.19 9080 extendable
ip forward-protocol nd
ip http server
no ip http secure-server
!
!
ip route 0.0.0.0 0.0.0.0 220.33.76.17
ip route 192.168.0.0 255.255.0.0 10.10.2.254
!
ip access-list extended nat
permit ip any any
!
!
!
!
control-plane
!
!
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
login local
!
!
end
router(config)#ip dhcp pool 1 开启DHCP功能
Router(dhcp-config)#network 192.168.2.0 255.255.254.0
Router(dhcp-config)#default-router 192.168.2.1
Router(dhcp-config)#dns-server 202.100.96.68 222.75.152.129
router(config)#interface FastEthernet0/0 配置公网接口
router(config-if)#ip address 124.224.177.x 255.x.x.x 配置运营商提供的ip地址及掩码
router(config-if)#ip nat outside
router(config-if)#no shudown
router(config)#interface FastEthernet0/1 配置内网接口
router(config-if)#ip address 192.168.2.1 255.255.254.0
router(config-if)#ip nat inside
router(config-if)#no shutdown
router(config)#ip route 0.0.0.0 0.0.0.0 124.224.177.xxx 配置路由124.224.177.xxx为运营商提供的网关IP
router(config)#access-list 101 permit ip any any 配置访问控制列表，运行访问公网的ip段
router(config)#ip nat inside source list 101 interface FastEthernet0/0 overload 配置nat转换
那么配置如下：
enable 进入特权模式
conf t 进入全局配置模式
interface fa0/0 进入内网接口
ip add 192.168.1.1 255.255.255.0 配置内网IP
no shut
ip nat inside 设置为对内转换接口
int fa0/1
ip add 1.1.1.2 255.255.255.252 配置申请的IP和掩码
no shut
ip nat outside 设置为对外转换接口
exit
access-list 1 permit 192.168.1.0 0.0.0.255
ip nat inside source list 1 interface fa0/1 overload 设置nat转换
ip route 0.0.0.0 0.0.0.0 1.1.1.1 设置默认路由
ip dhcp pool pool1 设置内网DHCP服务
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1 设置内网网关
dns-server 219.150.32.132 202.99.216.113 设置DNS服务器
exit
ip dhcp excluded-address 192.168.1.1 192.168.1.10 排除这十个地址
end 退出到特权模式下
copy run start 然后回车 保存配置
应该就这些了。
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