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GNS3でEIGRP検証環境を作ってみる。

■GNS3でEIGRP検証環境を作ってみる。

$ echo "[SW] -- [R1] -- [FR-SW] -- [R2] -- [R3] -- [FR-SW]" | graph-easy --dot | \
    sed -e 's/^}/  {rank = same; R2; R3}\n}/' | dot -T png -o eigrp_test.png

f:id:labunix:20160824001114p:plain
f:id:labunix:20160824002529p:plain

■R1/R2/R3のS1/0設定

$ for n in `seq 1 3`;do \
    echo "
enable
configure terminal
  hostname R${n}
  interface serial 1/0
  ip address 10.1.10.${n} 255.255.255.0
  encapsulation frame-relay
  clock rate 9600
  no shutdown
  exit
  router eigrp 1
  network 10.1.0.0
  end
write memory"; \
  done

R3#show controllers s1/0 | include ^cable
cable type : V.11 (X.21) DCE cable, received clockrate 9600

■R2/R3のE0/0設定

$ for n in 2 3;do \
    echo "
#R${n}
configure terminal
  interface Ethernet 0/0
  ip address 10.1.20.${n} 255.255.255.0
  no shutdown
  end
write memory"; \
  done | tr '#' '!'

■R1のE0/0設定

!R1
configure terminal
  interface Ethernet 0/0
  ip address 10.1.30.1 255.255.255.0
  no shutdown
  end
write memory

■DLCIの確認

R1#show frame-relay pvc interface s1/0 | include ^[DP]
PVC Statistics for interface Serial1/0 (Frame Relay DTE)
DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
DLCI = 103, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0

R2#show frame-relay pvc interface s1/0 | include ^[DP]
PVC Statistics for interface Serial1/0 (Frame Relay DTE)
DLCI = 201, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
DLCI = 203, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0

R3#show frame-relay pvc interface s1/0 | include ^[DP]
PVC Statistics for interface Serial1/0 (Frame Relay DTE)
DLCI = 301, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0
DLCI = 302, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0

■トポロジーの確認。

=> show run
autostart = False
[127.0.0.1:7200]
    workingdir = /tmp
    udp = 10001
    [[3620]]
        image = /Images/ios/c3620-is-mz.123-1.image
        ram = 128
        idlepc = 0x603d5308
        sparsemem = True
        ghostios = True
    [[ETHSW SW1]]
        1 = access 1 R1 e0/0
    [[FRSW FR1]]
        1:102 = 2:201
        1:103 = 3:301
        2:201 = 1:102
        2:203 = 3:302
        3:301 = 1:103
        3:302 = 2:203
        1 = R1 s1/0
        2 = R2 s1/0
        3 = R3 s1/0
    [[ROUTER R1]]
        model = 3620
        console = 2104
        aux = 2501
        slot0 = NM-1E
        e0/0 = SW1 1
        slot1 = NM-4T
        s1/0 = FR1 1
    [[ROUTER R2]]
        model = 3620
        console = 2105
        aux = 2502
        slot0 = NM-1E
        e0/0 = R3 e0/0
        slot1 = NM-4T
        s1/0 = FR1 2
    [[ROUTER R3]]
        model = 3620
        console = 2106
        aux = 2503
        slot0 = NM-1E
        e0/0 = R2 e0/0
        slot1 = NM-4T
        s1/0 = FR1 3
=> 

■FrameSwitchとEIGRPルーティングの確認

R1#show frame-relay map    
Serial1/0 (up): ip 10.1.10.2 dlci 102(0x66,0x1860), dynamic,
              broadcast,, status defined, active
Serial1/0 (up): ip 10.1.10.3 dlci 103(0x67,0x1870), dynamic,
              broadcast,, status defined, active
R1#show ip eigrp neighbors 
IP-EIGRP neighbors for process 1
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
1   10.1.10.3               Se1/0            177 00:00:07    1  4500  0  11
0   10.1.10.2               Se1/0            161 00:00:18   30   200  0  7
R1#show ip route | begin ^Gateway
Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 3 subnets
C       10.1.10.0 is directly connected, Serial1/0
C       10.1.30.0 is directly connected, Ethernet0/0
D       10.1.20.0 [90/2195456] via 10.1.10.2, 00:01:27, Serial1/0
                  [90/2195456] via 10.1.10.3, 00:01:27, Serial1/0

R2#show frame-relay map   
Serial1/0 (up): ip 10.1.10.1 dlci 201(0xC9,0x3090), dynamic,
              broadcast,, status defined, active
Serial1/0 (up): ip 10.1.10.3 dlci 203(0xCB,0x30B0), dynamic,
              broadcast,, status defined, active
R2#show ip eigrp neighbors 
IP-EIGRP neighbors for process 1
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
2   10.1.10.3               Se1/0            169 00:00:14    1  3000  0  11
1   10.1.10.1               Se1/0            154 00:00:30   36   216  0  2
0   10.1.20.3               Et0/0             13 00:04:07   82   492  0  10
R2#show ip route | begin ^Gateway
Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 3 subnets
C       10.1.10.0 is directly connected, Serial1/0
D       10.1.30.0 [90/2195456] via 10.1.10.1, 00:01:58, Serial1/0
C       10.1.20.0 is directly connected, Ethernet0/0

R3#show frame-relay map   
Serial1/0 (up): ip 10.1.10.1 dlci 301(0x12D,0x48D0), dynamic,
              broadcast,, status defined, active
Serial1/0 (up): ip 10.1.10.2 dlci 302(0x12E,0x48E0), dynamic,
              broadcast,, status defined, active
R3#show ip eigrp neighbors 
IP-EIGRP neighbors for process 1
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
2   10.1.10.2               Se1/0            163 00:00:31   32   200  0  9
1   10.1.10.1               Se1/0            164 00:00:35   36   216  0  3
0   10.1.20.2               Et0/0             11 00:04:09   93   558  0  8
R3#show ip route | begin ^Gateway 
Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 3 subnets
C       10.1.10.0 is directly connected, Serial1/0
D       10.1.30.0 [90/2195456] via 10.1.10.1, 00:02:08, Serial1/0
C       10.1.20.0 is directly connected, Ethernet0/0

■R3に対するEIGRPの確認コマンド

R3#show ip protocols    
Routing Protocol is "eigrp 1"
  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 1
  EIGRP NSF-aware route hold timer is 240s
  Automatic network summarization is in effect
  Maximum path: 4
  Routing for Networks:
    10.0.0.0
  Routing Information Sources:
    Gateway         Distance      Last Update
    10.1.10.1             90      00:12:09
    10.1.10.2             90      00:12:09
    10.1.20.2             90      00:12:09
  Distance: internal 90 external 170

R3#show ip eigrp neighbors detail  
IP-EIGRP neighbors for process 1
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
2   10.1.10.2               Se1/0            171 00:12:56   32   200  0  9
   Version 12.3/1.2, Retrans: 4, Retries: 0
1   10.1.10.1               Se1/0            132 00:13:00   36   216  0  3
   Version 12.3/1.2, Retrans: 5, Retries: 0
0   10.1.20.2               Et0/0             12 00:16:35   93   558  0  8
   Version 12.3/1.2, Retrans: 5, Retries: 0

R3#show ip eigrp interfaces 
IP-EIGRP interfaces for process 1

                        Xmit Queue   Mean   Pacing Time   Multicast    Pending
Interface        Peers  Un/Reliable  SRTT   Un/Reliable   Flow Timer   Routes
Se1/0              2        0/0        34       0/15          50           0
Et0/0              1        0/0        93       0/10         440           0

R3#show ip eigrp topology          
IP-EIGRP Topology Table for AS(1)/ID(10.1.10.3)

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

P 10.1.10.0/24, 1 successors, FD is 2169856
         via Connected, Serial1/0
P 10.1.30.0/24, 1 successors, FD is 2195456
         via 10.1.10.1 (2195456/281600), Serial1/0
P 10.1.20.0/24, 1 successors, FD is 281600
         via Connected, Ethernet0/0

R3#show ip eigrp topology all-links
IP-EIGRP Topology Table for AS(1)/ID(10.1.10.3)

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

P 10.1.10.0/24, 1 successors, FD is 2169856, serno 6
         via Connected, Serial1/0
         via 10.1.20.2 (2195456/2169856), Ethernet0/0
P 10.1.30.0/24, 1 successors, FD is 2195456, serno 8
         via 10.1.10.1 (2195456/281600), Serial1/0
         via 10.1.20.2 (2221056/2195456), Ethernet0/0
P 10.1.20.0/24, 1 successors, FD is 281600, serno 2
         via Connected, Ethernet0/0
         via 10.1.10.2 (2195456/281600), Serial1/0

R3#show ip eigrp traffic           
IP-EIGRP Traffic Statistics for AS 1
  Hellos sent/received: 252/262
  Updates sent/received: 19/12
  Queries sent/received: 5/2
  Replies sent/received: 1/1
  Acks sent/received: 8/13
  Input queue high water mark 3, 0 drops
  SIA-Queries sent/received: 0/0
  SIA-Replies sent/received: 0/0
  Hello Process ID: 83
  PDM Process ID: 107

R3#debug eigrp packets 
EIGRP Packets debugging is on
    (UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB, SIAQUERY, SIAREPLY)
R3#
*Mar  1 00:19:48.239: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:19:48.239:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/
R3#no debug eigrp packets

■R1のs1/0をshutdown/no shutdownでdown/upした際のログ

R3#debug ip eigrp        
IP-EIGRP Route Events debugging is on
R3#
*Mar  1 00:21:14.475: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 10.1.10.1 (Serial1/0) is down: peer restarted
*Mar  1 00:21:14.491: IP-EIGRP(Default-IP-Routing-Table:1): 10.1.30.0/24 - do advertise out Ethernet0/0
*Mar  1 00:21:14.491: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.1.30.0/24 metric 4294967295 - 1657856 4294967295
*Mar  1 00:21:14.491: IP-EIGRP(Default-IP-Routing-Table:1): 10.1.30.0/24 - do advertise out Serial1/0
*Mar  1 00:21:14.495: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.1.30.0/24 metric 4294967295 - 1657856 4294967295
*Mar  1 00:21:14.531: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming REPLY packet
*Mar  1 00:21:14.531: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.1.30.0/24 M 2221056 - 1657856 563200 SM 2195456 - 1657856 537600
*Mar  1 00:21:14.535: IP-EIGRP(Default-IP-Routing-Table:1): Processing incoming REPLY packet
*Mar  1 00:21:14.535: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.1.30.0/24 M 4294967295 - 1657856 4294967295 SM 4294967295 - 1657856 4294967295
*Mar  1 00:21:14.555: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.1.30.0/24 metric 2221056 - 1657856 563200
*Mar  1 00:21:14.555: IP-EIGRP(Default-IP-Routing-Table:1): 10.1.30.0/24 - do advertise out Serial1/0
*Mar  1 00:21:14.555: IP-EIGRP(Default-IP-Routing-Table:1): Int 10.1.30.0/24 metric 2221056 - 1657856 563200
R3#no debug ip eigrp 
IP-EIGRP Route Events debugging is off

R3#debug eigrp packets    
EIGRP Packets debugging is on
    (UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB, SIAQUERY, SIAREPLY)
R3#
*Mar  1 00:26:13.275: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:13.275:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:16.027: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:16.027:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:18.199: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:18.199:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:20.759: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:20.759:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:23.079: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:23.079:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:25.055: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:25.055:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:27.543: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:27.543:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:29.427: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:29.427:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:32.203: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:32.203:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:33.779: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:33.779:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:37.319: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:37.319:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:38.083: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:38.083:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:42.343: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:42.343:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:42.703: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:42.703:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:47.099: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:47.099:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:47.395: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:47.395:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:48.435: EIGRP: Sending HELLO on Serial1/0
*Mar  1 00:26:48.435:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:48.579: EIGRP: Received UPDATE on Serial1/0 nbr 10.1.10.1
*Mar  1 00:26:48.579:   AS 1, Flags 0x9, Seq 10/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:48.583: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 10.1.10.1 (Serial1/0) is down: peer restarted
*Mar  1 00:26:48.595: EIGRP: Enqueueing QUERY on Ethernet0/0 iidbQ un/rely 0/1 serno 21-21
*Mar  1 00:26:48.595: EIGRP: Enqueueing QUERY on Serial1/0 iidbQ un/rely 0/1 serno 21-21
*Mar  1 00:26:48.599: EIGRP: Sending QUERY on Ethernet0/0
*Mar  1 00:26:48.599:   AS 1, Flags 0x0, Seq 33/0 idbQ 0/0 iidbQ un/rely 0/0 serno 21-21
*Mar  1 00:26:48.599: EIGRP: Enqueueing QUERY on Serial1/0 nbr 10.1.10.2 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 21-21
*Mar  1 00:26:48.603: EIGRP: Sending QUERY on Serial1/0 nbr 10.1.10.2
*Mar  1 00:26:48.603:   AS 1, Flags 0x0, Seq 34/31 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 21-21
*Mar  1 00:26:48.643: EIGRP: Received ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:48.643:   AS 1, Flags 0x0, Seq 0/33 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:26:48.643: EIGRP: Ethernet0/0 multicast flow blocking cleared
*Mar  1 00:26:48.643: EIGRP: Received REPLY on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:48.647:   AS 1, Flags 0x0, Seq 32/33 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:48.647: EIGRP: Enqueueing ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:48.647:   Ack seq 32 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:26:48.647: EIGRP: Received ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:26:48.651:   AS 1, Flags 0x0, Seq 0/34 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:26:48.651: EIGRP: Serial1/0 multicast flow blocking cleared
*Mar  1 00:26:48.651: EIGRP: Received REPLY on Serial1/0 nbr 10.1.10.2
*Mar  1 00:26:48.651:   AS 1, Flags 0x0, Seq 33/34 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:48.655: EIGRP: Enqueueing ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:26:48.655:   Ack seq 33 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:26:48.659: EIGRP: Sending ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:48.659:   AS 1, Flags 0x0, Seq 0/32 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:26:48.663: EIGRP: Sending ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:26:48.663:   AS 1, Flags 0x0, Seq 0/33 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:26:48.667: EIGRP: Enqueueing UPDATE on Serial1/0 iidbQ un/rely 0/1 serno 22-22
*Mar  1 00:26:48.671: EIGRP: Enqueueing UPDATE on Serial1/0 nbr 10.1.10.2 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 22-22
*Mar  1 00:26:48.671: EIGRP: Sending UPDATE on Serial1/0 nbr 10.1.10.2
*Mar  1 00:26:48.671:   AS 1, Flags 0x0, Seq 35/33 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 22-22
*Mar  1 00:26:48.675: EIGRP: Enqueueing UPDATE on Ethernet0/0 iidbQ un/rely 0/1 serno 22-22
*Mar  1 00:26:48.679: EIGRP: Sending UPDATE on Ethernet0/0
*Mar  1 00:26:48.679:   AS 1, Flags 0x0, Seq 36/0 idbQ 0/0 iidbQ un/rely 0/0 serno 22-22
*Mar  1 00:26:48.715: EIGRP: Received ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:48.715:   AS 1, Flags 0x0, Seq 0/36 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:26:48.719: EIGRP: Ethernet0/0 multicast flow blocking cleared
*Mar  1 00:26:48.719: EIGRP: Received ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:26:48.719:   AS 1, Flags 0x0, Seq 0/35 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:26:48.719: EIGRP: Serial1/0 multicast flow blocking cleared
*Mar  1 00:26:51.759: EIGRP: Received UPDATE on Serial1/0 nbr 10.1.10.1
*Mar  1 00:26:51.759:   AS 1, Flags 0x9, Seq 10/0 idbQ 0/0
*Mar  1 00:26:51.759: EIGRP: Neighbor(10.1.10.1) not yet found
*Mar  1 00:26:52.191: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:52.191:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:54.127: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:54.127:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:26:56.263: EIGRP: Received UPDATE on Serial1/0 nbr 10.1.10.1
*Mar  1 00:26:56.263:   AS 1, Flags 0x9, Seq 10/0 idbQ 0/0
*Mar  1 00:26:56.263: EIGRP: Neighbor(10.1.10.1) not yet found
*Mar  1 00:26:56.791: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:26:56.791:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:26:59.291: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:26:59.291:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:27:01.083: EIGRP: Received UPDATE on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:01.083:   AS 1, Flags 0x9, Seq 10/0 idbQ 0/0
*Mar  1 00:27:01.083: EIGRP: Neighbor(10.1.10.1) not yet found
*Mar  1 00:27:01.591: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:27:01.591:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:27:04.079: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:04.079:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:27:04.735: EIGRP: Received HELLO on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:04.735:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0
*Mar  1 00:27:04.735: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 10.1.10.1 (Serial1/0) is up: new adjacency
*Mar  1 00:27:04.739: EIGRP: Enqueueing UPDATE on Serial1/0 nbr 10.1.10.1 iidbQ un/rely 0/1 peerQ un/rely 0/0 serno 2-22
*Mar  1 00:27:04.743: EIGRP: Requeued unicast on Serial1/0
*Mar  1 00:27:04.747: EIGRP: Sending UPDATE on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:04.747:   AS 1, Flags 0x9, Seq 37/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 2-22
*Mar  1 00:27:05.899: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:27:05.899:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:27:06.747: EIGRP: Sending UPDATE on Serial1/0 nbr 10.1.10.1, retry 1, RTO 3000
*Mar  1 00:27:06.747:   AS 1, Flags 0x9, Seq 37/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 2-22
*Mar  1 00:27:06.791: EIGRP: Received UPDATE on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:06.791:   AS 1, Flags 0x9, Seq 10/37 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:27:06.795: EIGRP: Enqueueing ACK on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:06.795:   Ack seq 10 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:06.799: EIGRP: Sending ACK on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:06.799:   AS 1, Flags 0x0, Seq 0/10 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:06.807: EIGRP: Enqueueing UPDATE on Ethernet0/0 iidbQ un/rely 0/1 serno 23-23
*Mar  1 00:27:06.807: EIGRP: Enqueueing UPDATE on Serial1/0 iidbQ un/rely 0/1 serno 23-23
*Mar  1 00:27:06.843: EIGRP: Sending UPDATE on Ethernet0/0
*Mar  1 00:27:06.843:   AS 1, Flags 0x0, Seq 38/0 idbQ 0/0 iidbQ un/rely 0/0 serno 23-23
*Mar  1 00:27:06.843: EIGRP: Enqueueing UPDATE on Serial1/0 nbr 10.1.10.1 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 23-23
*Mar  1 00:27:06.843: EIGRP: Enqueueing UPDATE on Serial1/0 nbr 10.1.10.2 iidbQ un/rely 0/0 peerQ un/rely 0/0 serno 23-23
*Mar  1 00:27:06.847: EIGRP: Sending UPDATE on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:06.847:   AS 1, Flags 0x0, Seq 39/10 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 23-23
*Mar  1 00:27:06.863: EIGRP: Sending UPDATE on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:06.863:   AS 1, Flags 0x0, Seq 39/33 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 23-23
*Mar  1 00:27:06.887: EIGRP: Received ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:06.887:   AS 1, Flags 0x0, Seq 0/38 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:27:06.891: EIGRP: Ethernet0/0 multicast flow blocking cleared
*Mar  1 00:27:06.891: EIGRP: Received UPDATE on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:06.891:   AS 1, Flags 0x0, Seq 11/39 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:27:06.891: EIGRP: Enqueueing ACK on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:06.895:   Ack seq 11 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:06.895: EIGRP: Sending ACK on Serial1/0 nbr 10.1.10.1
*Mar  1 00:27:06.895:   AS 1, Flags 0x0, Seq 0/11 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:06.919: EIGRP: Received ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:06.919:   AS 1, Flags 0x0, Seq 0/39 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:27:06.919: EIGRP: Serial1/0 multicast flow blocking cleared
*Mar  1 00:27:10.659: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:27:10.659:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:27:11.207: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:11.207:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:27:12.559: EIGRP: Received HELLO on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.559:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:27:12.583: EIGRP: Received QUERY on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:12.583:   AS 1, Flags 0x0, Seq 34/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:27:12.587: EIGRP: Enqueueing ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:12.587:   Ack seq 34 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:12.587: EIGRP: Received QUERY on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.587:   AS 1, Flags 0x0, Seq 35/39 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:27:12.591: EIGRP: Enqueueing ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.591:   Ack seq 35 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:12.591: EIGRP: Sending ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:12.595:   AS 1, Flags 0x0, Seq 0/34 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:12.595: EIGRP: Sending ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.595:   AS 1, Flags 0x0, Seq 0/35 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:12.599: EIGRP: Enqueueing REPLY on Ethernet0/0 nbr 10.1.20.2 iidbQ un/rely 0/1 peerQ un/rely 0/0 serno 24-24
*Mar  1 00:27:12.603: EIGRP: Requeued unicast on Ethernet0/0
*Mar  1 00:27:12.603: EIGRP: Enqueueing REPLY on Serial1/0 nbr 10.1.10.2 iidbQ un/rely 0/1 peerQ un/rely 0/0 serno 25-25
*Mar  1 00:27:12.607: EIGRP: Requeued unicast on Serial1/0
*Mar  1 00:27:12.607: EIGRP: Sending REPLY on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:12.607:   AS 1, Flags 0x0, Seq 40/34 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 24-24
*Mar  1 00:27:12.611: EIGRP: Sending REPLY on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.611:   AS 1, Flags 0x0, Seq 41/35 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 serno 25-25
*Mar  1 00:27:12.655: EIGRP: Received ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:12.655:   AS 1, Flags 0x0, Seq 0/40 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:27:12.655: EIGRP: Received UPDATE on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:12.655:   AS 1, Flags 0x0, Seq 37/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:27:12.659: EIGRP: Enqueueing ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:12.659:   Ack seq 37 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:12.659: EIGRP: Received ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.659:   AS 1, Flags 0x0, Seq 0/41 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1
*Mar  1 00:27:12.663: EIGRP: Received UPDATE on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.663:   AS 1, Flags 0x0, Seq 36/41 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
*Mar  1 00:27:12.663: EIGRP: Enqueueing ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.667:   Ack seq 36 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:12.667: EIGRP: Sending ACK on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:12.667:   AS 1, Flags 0x0, Seq 0/37 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:12.671: EIGRP: Sending ACK on Serial1/0 nbr 10.1.10.2
*Mar  1 00:27:12.671:   AS 1, Flags 0x0, Seq 0/36 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 1/0
*Mar  1 00:27:15.011: EIGRP: Sending HELLO on Ethernet0/0
*Mar  1 00:27:15.011:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar  1 00:27:17.659: EIGRP: Received HELLO on Ethernet0/0 nbr 10.1.20.2
*Mar  1 00:27:17.659:   AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0