网络类型大实验
解题思路：
1、网络部署——拓扑的搭建
2、底层部署——IP地址规划配置保证全网底层都有IP
R1-R4私网网段：192.168.1.0/24——192.168.4.0/24
公网各路由器间15.1.1.0/24；25.1.1.1/24；35.1.1.1/24；45.1.1.1/24
tunnel口地址：10.1.1.1 /24；——10.1.1.3/24；10.2.2.1/24-10.2.2.2/24
链路接口认证也是底层部署的一部分
R1和R5之间的PPP认证，R5为主认证方：
[R5]aaa //主认证方——服务端
[R5-aaa]local-user huawei password cipher huawei123
Info: Add a new user.
[R5-aaa]local-user huawei service-type ppp
[R5-aaa]int s4/0/0 //连接客户端接口
[R5-Serial4/0/0]link-protocol ppp
[R5-Serial4/0/0]ppp authentication-mode pap
[R5-Serial4/0/0]ip address 15.1.1.2 24
[R5-Serial4/0/0]q
[R1]int s4/0/0 //被认证方
[R1-Serial4/0/0]link-protocol ppp
[R1-Serial4/0/0]ppp pap local-user huawei password cipher huawei123
[R1-Serial4/0/0]ip address 15.1.1.1 24
R2与R5间使用PPP的chap认证：
[R5]aaa //主认证方
[R5-aaa]local-user qq password cipher qq123
Info: Add a new user.
[R5-aaa]local-user qq service-type ppp
[R5-aaa]int s4/0/1
[R5-Serial4/0/1]link-protocol ppp
[R5-Serial4/0/1]ppp authentication-mode chap
[R5-Serial4/0/1]ip address 25.1.1.1 24
[R2]int s4/0/1 //被认证方
[R2-Serial4/0/1]link-protocol ppp
[R2-Serial4/0/1]ppp chap user qq
[R2-Serial4/0/1]ppp chap password cipher qq123
[R2-Serial4/0/1]ip address 25.1.1.2 24
R3与R5间使用HDLC封装：
[R3-LoopBack0]int s4/0/0
[R3-Serial4/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y
[R3-Serial4/0/0]ip address 35.1.1.2 24
[R5]int s3/0/0
[R5-Serial3/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y
[R5-Serial3/0/0]ip address 35.1.1.1 24
3、路由保证全网可达——各路由器缺省指向R5
[R1]ip route-static 0.0.0.0 0 15.1.1.2
[R2]ip route-static 0.0.0.0 0 25.1.1.1
[R3]ip route-static 0.0.0.0 0 35.1.1.1
[R4]ip route-static 0.0.0.0 0 45.1.1.1
R1-4做net使得所有路由器基于环回私有地址为源ip时，可以正常访问R5环回。
[R1]acl 2000
[R1-acl-basic-2000]rule 5 permit source 192.168.1.0 0.0.0.255
[R1-acl-basic-2000]q
[R1]int s4/0/0
[R1-Serial4/0/0]nat outbound 2000
[R1-Serial4/0/0]display nat outbound
NAT Outbound Information:
Interface Acl Address-group/IP/Interface Type
Serial4/0/0 2000 15.1.1.1 easyip
[R2]acl 2000
[R2-acl-basic-2000]rule 5 permit source 192.168.2.0 0.0.0.255
[R2-acl-basic-2000]q
[R2]int s4/0/1
[R2-Serial4/0/1]nat outbound 2000
[R3]acl 2000
[R3-acl-basic-2000]rule 5 permit source 192.168.3.0 0.0.0.255
[R3-acl-basic-2000]q
[R3]int s4/0/0
[R3-Serial4/0/0]nat outbound 2000
[R3-Serial4/0/0]display nat outbound
[R4]acl 2000
[R4-acl-basic-2000]rule 5 permit source 192.168.4.0 0.0.0.255
[R4-acl-basic-2000]q
[R4]int g0/0/0
[R4-GigabitEthernet0/0/0]nat outbound 2000
[R4-GigabitEthernet0/0/0]display nat outbound
配置这一部分的时候遇到了两大问题：1）各路由器不能使用环回去pingR5的环回，这样做nat也是拼不通的，只能再额外加上一台PC。才可以ping通。2）在写PC3的时候网关地址和主机地址写错了导致一直没有ping通后来检查了几遍才通。
4、R1/2/3构建一个MGRE环境，R1为中心站点
R1/4间为点到点GRE
[R1]int Tunnel 0/0/1
[R1-Tunnel0/0/1]ip address 10.2.2.1 24
[R1-Tunnel0/0/1]tunnel-protocol gre
[R1-Tunnel0/0/1]source 15.1.1.1
[R1-Tunnel0/0/1]destination 45.1.1.2
Sep 28 2020 18:12:33-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/1 has entered the UP state.
[R4]int Tunnel 0/0/1
[R4-Tunnel0/0/1]ip address 10.2.2.2 24
[R4-Tunnel0/0/1]tunnel-protocol gre
[R4-Tunnel0/0/1]source 45.1.1.2
[R4-Tunnel0/0/1]destination 15.1.1.1
Sep 28 2020 18:34:38-08:00 R4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface Tunnel0/0/1 has entered the UP state.
4、整个私有网络基于RIP全网可达——配置rip并在R1上打破水平分割，否则部分学不到路由。
[R1]rip 1
[R1-rip-1]version 2
[R1-rip-1]network 192.168.1.0
[R1-rip-1]network 10.0.0.0
[R2]rip 1
[R2-rip-1]version 2
[R2-rip-1]network 192.168.2.0
[R2-rip-1]network 10.0.0.0
[R3]rip 1
[R3-rip-1]version 2
[R3-rip-1]network 192.168.3.0
[R3-rip-1]network 10.0.0.0
[R4]rip 1
[R4-rip-1]version 2
[R4-rip-1]network 192.168.4.0
[R4-rip-1]network 10.0.0.0
在R1上打破水平分割
[R1-Tunnel0/0/0]undo rip split-horizon
实验结束