[BSCI]基本EIGRP试验

R1配置

r1(config)#int lo0
r1(config-if)#ip ad 1.1.1.1 255.255.255.0
r1(config)#int s2/1
r1(config-if)#ip ad 192.168.0.1 255.255.255.0
r1(config-if)#no sh
r1(config-if)#int f0/0
r1(config-if)#ip ad 172.16.0.1 255.255.255.0
r1(config-if)#no sh
r1(config-if)#end

r1#sh ip int bri
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            172.16.0.1      YES manual up                    up     
Serial2/0                  unassigned      YES unset  administratively down down   
Serial2/1                  192.168.0.1     YES manual up                    up     
Serial2/2                  unassigned      YES unset  administratively down down   
Serial2/3                  unassigned      YES unset  administratively down down   
Serial3/0                  unassigned      YES unset  administratively down down   
Serial3/1                  unassigned      YES unset  administratively down down   
Serial3/2                  unassigned      YES unset  administratively down down   
Serial3/3                  unassigned      YES unset  administratively down down   
Loopback0                  1.1.1.1         YES manual up                    up     

r1#conf t
r1(config)#router ei 100
r1(config-router)#net 1.1.1.1
r1(config-router)#net 172.16.0.1
r1(config-router)#net 192.168.0.1
r1(config-router)#end

 

R2配置

r2(config)#int lo0
r2(config-if)#ip ad 2.2.2.2 255.255.255.0
r2(config-if)#int s2/1
r2(config-if)#ip ad 192.168.0.2 255.255.255.0
r2(config-if)#no sh

r2#sh ip int bri
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            unassigned      YES unset  administratively down down   
Serial2/0                  unassigned      YES unset  administratively down down   
Serial2/1                  192.168.0.2     YES manual up                    up     
Serial2/2                  unassigned      YES unset  administratively down down   
Serial2/3                  unassigned      YES unset  administratively down down   
Serial3/0                  unassigned      YES unset  administratively down down   
Serial3/1                  unassigned      YES unset  administratively down down   
Serial3/2                  unassigned      YES unset  administratively down down   
Serial3/3                  unassigned      YES unset  administratively down down   
Loopback0                  2.2.2.2         YES manual up                    up     

r2#conf t
r2(config)#router ei 100
r2(config-router)#net 2.2.2.2
r2(config-router)#net 192.168.0.2

 

R3配置

r3(config)#int lo0
r3(config-if)#ip ad 3.3.3.3 255.255.255.0
r3(config-if)#int f0/0
r3(config-if)#ip ad 172.16.0.3 255.255.255.0
r3(config-if)#no sh
r3(config-if)#end

r3#sh ip int bri
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            172.16.0.3      YES manual up                    up     
Serial2/0                  unassigned      YES unset  administratively down down   
Serial2/1                  unassigned      YES unset  administratively down down   
Serial2/2                  unassigned      YES unset  administratively down down   
Serial2/3                  unassigned      YES unset  administratively down down   
Serial3/0                  unassigned      YES unset  administratively down down   
Serial3/1                  unassigned      YES unset  administratively down down   
Serial3/2                  unassigned      YES unset  administratively down down   
Serial3/3                  unassigned      YES unset  administratively down down   
Loopback0                  3.3.3.3         YES manual up                    up     

r3#conf t
r3(config)#router ei 100
r3(config-router)#net 3.3.3.3
r3(config-router)#net 172.16.0.3
r3(config-router)#end

 

R1看现象

r1#sh ip pro                                                   
Routing Protocol is "eigrp 100"
  Outgoing update filter list for all interfaces is not set
  Incoming update filter list for all interfaces is not set
  Default networks flagged in outgoing updates
  Default networks accepted from incoming updates
  EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
  EIGRP maximum hopcount 100
  EIGRP maximum metric variance 1
  Redistributing: eigrp 100
  EIGRP NSF-aware route hold timer is 240s
  Automatic network summarization is in effect
  Automatic address summarization:
    192.168.0.0/24 for Loopback0, FastEthernet0/0
    172.16.0.0/16 for Loopback0, Serial2/1
      Summarizing with metric 28160
    1.0.0.0/8 for FastEthernet0/0, Serial2/1
      Summarizing with metric 128256
  Maximum path: 4
  Routing for Networks:
    1.0.0.0
    172.16.0.0
    192.168.0.0
  Routing Information Sources:
    Gateway         Distance      Last Update
    (this router)         90      00:46:48
    192.168.0.2           90      00:45:56
    172.16.0.3            90      00:45:55
  Distance: internal 90 external 170

 

r1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C       1.1.1.0/24 is directly connected, Loopback0
D       1.0.0.0/8 is a summary, 00:47:29, Null0
D    2.0.0.0/8 [90/2297856] via 192.168.0.2, 00:47:01, Serial2/1
D    3.0.0.0/8 [90/156160] via 172.16.0.3, 00:46:37, FastEthernet0/0
     172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C       172.16.0.0/24 is directly connected, FastEthernet0/0
D       172.16.0.0/16 is a summary, 00:47:29, Null0
C    192.168.0.0/24 is directly connected, Serial2/1

 

关闭R1上的自动汇总

r1#conf t
r1(config)#router ei 100
r1(config-router)#no au

查看现象

r1#sh ip pro
Routing Protocol is "eigrp 100"
  Outgoing update filter list for all interfaces is not set
  Incoming update filter list for all interfaces is not set
  Default networks flagged in outgoing updates
  Default networks accepted from incoming updates
  EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
  EIGRP maximum hopcount 100
  EIGRP maximum metric variance 1
  Redistributing: eigrp 100
  EIGRP NSF-aware route hold timer is 240s
  Automatic network summarization is not in effect          说明已经关闭掉了自动汇总
  Maximum path: 4
  Routing for Networks:
    1.0.0.0
    172.16.0.0
    192.168.0.0
  Routing Information Sources:
    Gateway         Distance      Last Update
    (this router)         90      00:48:56
    192.168.0.2           90      00:00:36
    172.16.0.3            90      00:00:36
  Distance: internal 90 external 170

 

查看R1路由信息

r1#sh ip ro
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/24 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, Loopback0
D    2.0.0.0/8 [90/2297856] via 192.168.0.2, 00:00:28, Serial2/1
D    3.0.0.0/8 [90/156160] via 172.16.0.3, 00:00:28, FastEthernet0/0
     172.16.0.0/24 is subnetted, 1 subnets
C       172.16.0.0 is directly connected, FastEthernet0/0
C    192.168.0.0/24 is directly connected, Serial2/1

 

调试eigrp

r1#debug ei pa
EIGRP Packets debugging is on
    (UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB, SIAQUERY, SIAREPLY)
r1#
*Jul 16 18:05:06.295: EIGRP: Received HELLO on FastEthernet0/0 nbr 172.16.0.3
*Jul 16 18:05:06.295:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Jul 16 18:05:06.523: EIGRP: Sending HELLO on Loopback0
*Jul 16 18:05:06.523:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Jul 16 18:05:06.527: EIGRP: Received HELLO on Loopback0 nbr 1.1.1.1
*Jul 16 18:05:06.527:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0
*Jul 16 18:05:06.527: EIGRP: Packet from ourselves ignored
*Jul 16 18:05:06.791: EIGRP: Sending HELLO on FastEthernet0/0
*Jul 16 18:05:06.791:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
r1#
*Jul 16 18:05:08.527: EIGRP: Sending HELLO on Serial2/1
*Jul 16 18:05:08.527:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
r1#
*Jul 16 18:05:09.567: EIGRP: Received HELLO on Serial2/1 nbr 192.168.0.2
*Jul 16 18:05:09.567:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
r1#
*Jul 16 18:05:10.631: EIGRP: Received HELLO on FastEthernet0/0 nbr 172.16.0.3
*Jul 16 18:05:10.631:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Jul 16 18:05:10.795: EIGRP: Sending HELLO on Loopback0
*Jul 16 18:05:10.795:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Jul 16 18:05:10.795: EIGRP: Received HELLO on Loopback0 nbr 1.1.1.1
*Jul 16 18:05:10.799:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0
*Jul 16 18:05:10.799: EIGRP: Packet from ourselves ignored
r1#
*Jul 16 18:05:11.695: EIGRP: Sending HELLO on FastEthernet0/0
*Jul 16 18:05:11.695:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
r1#
*Jul 16 18:05:13.407: EIGRP: Sending HELLO on Serial2/1
*Jul 16 18:05:13.407:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Jul 16 18:05:14.267: EIGRP: Received HELLO on Serial2/1 nbr 192.168.0.2
*Jul 16 18:05:14.267:   AS 100, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0

查看EIGRP邻居信息

r1#sh ip ei nei
IP-EIGRP neighbors for process 100
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
1   192.168.0.2             Se2/1             11 00:03:12   68   408  0  6
0   172.16.0.3              Fa0/0             12 00:03:14   32   200  0  5

 

查看EIGRP交换信息

r1#sh ip ei top
IP-EIGRP Topology Table for AS(100)/ID(1.1.1.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - reply Status, s - sia Status

P 1.1.1.0/24, 1 successors, FD is 128256
        via Connected, Loopback0
P 2.0.0.0/8, 1 successors, FD is 2297856
        via 192.168.0.2 (2297856/128256), Serial2/1
P 3.0.0.0/8, 1 successors, FD is 156160
        via 172.16.0.3 (156160/128256), FastEthernet0/0
P 192.168.0.0/24, 1 successors, FD is 2169856
        via Connected, Serial2/1
P 172.16.0.0/24, 1 successors, FD is 28160
        via Connected, FastEthernet0/0