外网配置
配置主机
先认证再捆绑
使用CHAP认证进行
RT1主验证 （采用简单的接口验证
[RT1]local-user rt2 class network
New local user added.
[RT1-luser-network-rt2]password simple rt2
[RT1-luser-network-rt2]service-type ppp
[RT1-luser-network-rt2]quit
[RT1]inter s1/0
[RT1-Serial1/0]ppp authentication-mode chap
[RT1-Serial1/0]inter s2/0
[RT1-Serial2/0]ppp authentication-mode chap
）
RT1配置完成后，RT2马上开启认证
[RT2]inter s1/0
[RT2-Serial1/0]ppp chap password simple rt2
[RT2-Serial1/0]dis inter s1/0
Serial1/0
Current state: UP
Line protocol state: UP
Description: Serial1/0 Interface
Bandwidth: 64 kbps
Maximum transmission unit: 1500
Hold timer: 10 seconds, retry times: 5
Internet protocol processing: Disabled
Link layer protocol: PPP
LCP: opened
Output queue - Urgent queuing: Size/Length/Discards 0/100/0
Output queue - Protocol queuing: Size/Length/Discards 0/500/0
Output queue - FIFO queuing: Size/Length/Discards 0/75/0
Last link flapping: 0 hours 42 minutes 4 seconds
Last clearing of counters: Never
此时接口处于open状态，所以我们需要重启接口进行验证
[RT2-Serial1/0]shut
[RT2-Serial1/0]undo shut
[RT2-Serial1/0]dis inter s1/0
Serial1/0
Current state: UP
Line protocol state: UP
Description: Serial1/0 Interface
Bandwidth: 64 kbps
Maximum transmission unit: 1500
Hold timer: 10 seconds, retry times: 5
Internet protocol processing: Disabled
Link layer protocol: PPP
LCP: opened
Output queue - Urgent queuing: Size/Length/Discards 0/100/0
Output queue - Protocol queuing: Size/Length/Discards 0/500/0
Output queue - FIFO queuing: Size/Length/Discards 0/75/0
Last link flapping: 0 hours 0 minutes 34 seconds
Last clearing of counters: Never
接口仍处于open状态则说明验证成功，进入接口S2/0验证
[RT2]inter s2/0
[RT2-Serial2/0]ppp chap user rt2
[RT2-Serial2/0]ppp chap password simple rt2
[RT2-Serial2/0]dis inter s2/0
Serial2/0
Current state: UP
Line protocol state: UP
Description: Serial2/0 Interface
Bandwidth: 64 kbps
Maximum transmission unit: 1500
Hold timer: 10 seconds, retry times: 5
Internet protocol processing: Disabled
Link layer protocol: PPP
LCP: opened
Output queue - Urgent queuing: Size/Length/Discards 0/100/0
Output queue - Protocol queuing: Size/Length/Discards 0/500/0
Output queue - FIFO queuing: Size/Length/Discards 0/75/0
Last link flapping: 0 hours 54 minutes 43 seconds
Last clearing of counters: Never
[RT2-Serial2/0]shut
[RT2-Serial2/0]%Dec 23 11:57:36:968 2021 RT2 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial2/0 changed to down.
%Dec 23 11:57:36:968 2021 RT2 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial2/0 changed to down.
[RT2-Serial2/0]undo shut
[RT2-Serial2/0]%Dec 23 11:57:44:464 2021 RT2 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial2/0 changed to up.
%Dec 23 11:57:44:465 2021 RT2 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial2/0 changed to up.
[RT2-Serial2/0]dis inter s2/0
Serial2/0
Current state: UP
Line protocol state: UP
Description: Serial2/0 Interface
Bandwidth: 64 kbps
Maximum transmission unit: 1500
Hold timer: 10 seconds, retry times: 5
Internet protocol processing: Disabled
Link layer protocol: PPP
LCP: opened
Output queue - Urgent queuing: Size/Length/Discards 0/100/0
Output queue - Protocol queuing: Size/Length/Discards 0/500/0
Output queue - FIFO queuing: Size/Length/Discards 0/75/0
Last link flapping: 0 hours 0 minutes 4 seconds
Last clearing of counters: Never
验证结束，下面开始进行捆绑，先建立捆绑组，给捆绑组配置IP地址，再进入接口，把接口加入捆绑组
[RT1]inter mp
[RT1]inter MP-group 1
[RT1-MP-group1]ip add 100.0.0.1 24
[RT1-MP-group1]quit
[RT1]inter s1/0
[RT1-Serial1/0]ppp mp mp
[RT1-Serial1/0]ppp mp MP-group 1
[RT1-Serial1/0]%Dec 23 12:03:58:777 2021 RT1 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial1/0 changed to down.
%Dec 23 12:04:01:836 2021 RT1 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial1/0 changed to up.
[RT1-Serial1/0]inter s2/0
[RT1-Serial2/0]ppp mp mp1
[RT1-Serial2/0]%Dec 23 12:04:56:494 2021 RT1 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial2/0 changed to down.
%Dec 23 12:04:59:536 2021 RT1 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial2/0 changed to up.
[RT2]inter MP-group 1
[RT2-MP-group1]ip add 100.0.0.2 24
[RT2-MP-group1]inter s1/0
[RT2-Serial1/0]ppp mp MP-group 1
[RT2-Serial1/0]inter s2/0
[RT2-Serial2/0]ppp mp MP-group 1
[RT2-Serial2/0]quit
//查看是否捆绑成功
[RT2]dis ppp mp
----------------------Slot0----------------------
Template: MP-group1
max-bind: 16, fragment: enabled, min-fragment: 128
Master link: MP-group1, Active members: 2, Bundle Multilink
Peer's endPoint descriptor: MP-group1
Sequence format: long (rcv)/long (sent)
Bundle Up Time: 2021/12/23 12:07:04:660
0 lost fragments, 0 reordered, 0 unassigned, 0 interleaved
Sequence: 0 (rcv)/0 (sent)
Active member channels: 2 members
Serial1/0 Up-Time:2021/12/23 12:07:04:660
Serial2/0 Up-Time:2021/12/23 12:07:42:40
给RT2的g0/0接口配置ip地址
[RT2]inter g0/0
[RT2-GigabitEthernet0/0]ip add 100.0.1.254 24
[RT2-GigabitEthernet0/0]quit
查看RT2路由表是否出现100.0.0以及100.0.1两个字段
[RT2]dis ip routing-table
Destinations : 17 Routes : 17
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
100.0.0.0/24 Direct 0 0 100.0.0.2 MP1
100.0.0.0/32 Direct 0 0 100.0.0.2 MP1
100.0.0.1/32 Direct 0 0 100.0.0.1 MP1
100.0.0.2/32 Direct 0 0 127.0.0.1 InLoop0
100.0.0.255/32 Direct 0 0 100.0.0.2 MP1
100.0.1.0/24 Direct 0 0 100.0.1.254 GE0/0
100.0.1.0/32 Direct 0 0 100.0.1.254 GE0/0
100.0.1.254/32 Direct 0 0 127.0.0.1 InLoop0
100.0.1.255/32 Direct 0 0 100.0.1.254 GE0/0
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
224.0.0.0/4 Direct 0 0 0.0.0.0 NULL0
224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0
255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
用ospf配置路由
[RT1-ospf-1]ospf
[RT1-ospf-1]ar
[RT1-ospf-1]area 0
[RT1-ospf-1-area-0.0.0.0]net 100.0.0.0 0.0.0.255
[RT1-ospf-1-area-0.0.0.0]quit
[RT1-ospf-1]quit
[RT2]ospf
[RT2-ospf-1]ar
[RT2-ospf-1]area 0
[RT2-ospf-1-area-0.0.0.0]net 100.0.0.0 0.0.0.255
[RT2-ospf-1-area-0.0.0.0]%Dec 23 12:28:22:096 2021 RT2 OSPF/5/OSPF_NBR_CHG: OSPF 1 Neighbor 100.0.0.1(MP-group1) changed from LOADING to FULL.
[RT2-ospf-1-area-0.0.0.0]net 100.0.1.0 0.0.0.255
[RT2-ospf-1-area-0.0.0.0]quit
[RT2-ospf-1]quit
查看RT2，RT1路由表，RT2直连最优，RT1出现100.0.1字段说明能连通外网主机，并通过ping命令检查连通性
[RT2]dis ip routing-table
Destinations : 17 Routes : 17
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
100.0.0.0/24 Direct 0 0 100.0.0.2 MP1
100.0.0.0/32 Direct 0 0 100.0.0.2 MP1
100.0.0.1/32 Direct 0 0 100.0.0.1 MP1
100.0.0.2/32 Direct 0 0 127.0.0.1 InLoop0
100.0.0.255/32 Direct 0 0 100.0.0.2 MP1
100.0.1.0/24 Direct 0 0 100.0.1.254 GE0/0
100.0.1.0/32 Direct 0 0 100.0.1.254 GE0/0
100.0.1.254/32 Direct 0 0 127.0.0.1 InLoop0
100.0.1.255/32 Direct 0 0 100.0.1.254 GE0/0
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
224.0.0.0/4 Direct 0 0 0.0.0.0 NULL0
224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0
255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
[RT1]dis ip routing-table
Destinations : 20 Routes : 20
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
10.0.0.0/30 Direct 0 0 10.0.0.2 GE0/0
10.0.0.0/32 Direct 0 0 10.0.0.2 GE0/0
10.0.0.2/32 Direct 0 0 127.0.0.1 InLoop0
10.0.0.3/32 Direct 0 0 10.0.0.2 GE0/0
100.0.0.0/24 Direct 0 0 100.0.0.1 MP1
100.0.0.0/32 Direct 0 0 100.0.0.1 MP1
100.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
100.0.0.2/32 Direct 0 0 100.0.0.2 MP1
100.0.0.255/32 Direct 0 0 100.0.0.1 MP1
100.0.1.0/24 O_INTRA 10 782 100.0.0.2 MP1
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
172.16.1.0/24 Static 60 0 10.0.0.1 GE0/0
172.16.2.0/24 Static 60 0 10.0.0.1 GE0/0
224.0.0.0/4 Direct 0 0 0.0.0.0 NULL0
224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0
255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
[RT1]
[RT1]ping 100.0.1.1
Ping 100.0.1.1 (100.0.1.1): 56 data bytes, press CTRL_C to break
56 bytes from 100.0.1.1: icmp_seq=0 ttl=254 time=1.000 ms
56 bytes from 100.0.1.1: icmp_seq=1 ttl=254 time=1.000 ms
56 bytes from 100.0.1.1: icmp_seq=2 ttl=254 time=1.000 ms
56 bytes from 100.0.1.1: icmp_seq=3 ttl=254 time=1.000 ms
56 bytes from 100.0.1.1: icmp_seq=4 ttl=254 time=1.000 ms
--- Ping statistics for 100.0.1.1 ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/std-dev = 1.000/1.000/1.000/0.000 ms
[RT1]%Dec 23 12:30:17:333 2021 RT1 PING/6/PING_STATISTICS: Ping statistics for 100.0.1.1: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 1.000/1.000/1.000/0.000 ms.
此时，整个外网均已连通
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