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Lab 15-3: Cấu hình Spase-mode tĩnh
Vẫn dùng sơ đồ trên, ta phải enable multicast trên toàn bộ router. Cấu hình địa chỉ RP tĩnh trên tất cả các router. Ở đây ta sẻ sử dụng R2 làm RP và sử dụng interface loopback 0 của R2 là địa chỉ của RP
Lệnh router(config)# ip pim rp-address 192.168.4.1
Cấu hình
R1#
!
hostname R1
!
enable password cisco
!
no ip domain lookup
ip host Host_1 192.168.3.2
ip host R3 192.168.1.18
ip host R4 192.168.1.14
ip host R5 192.168.1.6
ip host r2 192.168.1.22
!
interface Serial0/0
ip address 192.168.1.1 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
clockrate 64000
!
interface FastEthernet0/1
ip address 192.168.3.1 255.255.255.0
ip pim sparse-mode
no ip mroute-cache
duplex auto
speed auto
!
interface Serial0/1
ip address 192.168.1.21 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
clockrate 64000
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip classless
no ip http server
ip pim rp-address 192.168.4.1
!
End
R2#
!
hostname R2
!
enable password cisco
!
no ip domain lookup
!
ip multicast-routing
interface Loopback0
ip address 192.168.4.1 255.255.255.255
ip pim sparse-mode
!
interface Serial0/0
ip address 192.168.1.17 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
no fair-queue
clockrate 64000
!
interface Serial0/1
ip address 192.168.1.22 255.255.255.252
no ip mroute-cache
ip pim sparse-mode
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip classless
ip http server
ip pim rp-address 192.168.4.1
!
End
R3
!
hostname R3
!
no ip domain lookup
!
ip multicast-routing
!
interface Ethernet0/0
ip address 192.168.2.1 255.255.255.0
ip pim sparse-mode
no ip mroute-cache
half-duplex
!
interface Serial0/0
ip address 192.168.1.13 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
no fair-queue
!
interface Serial0/1
ip address 192.168.1.18 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip http server
ip classless
!
ip pim rp-address 192.168.4.1
End
R4
!
hostname R4
!
enable password cisco
!
ip multicast-routing
interface Ethernet0/0
ip address 192.168.1.5 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
half-duplex
!
interface Serial0/0
ip address 192.168.1.2 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
no fair-queue
interface Serial0/1
ip address 192.168.1.14 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
clockrate 64000
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip classless
ip http server
ip pim rp-address 192.168.4.1
End
R5
!
hostname R5
!
enable password cisco
!
ip subnet-zero
!
no ip domain lookup
!
ip multicast-routing
!
interface FastEthernet0/0
ip address 192.168.1.6 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 192.168.2.2 255.255.255.0
ip pim sparse-mode
no ip mroute-cache
duplex auto
speed auto
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip classless
ip http server
ip pim rp-address 192.168.4.1
!
End
Show ip mroute
R1#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:54:11/00:00:00, RP 192.168.4.1, flags: SJCL
Incoming interface: Serial0/1, RPF nbr 192.168.1.22
Outgoing interface list:
Serial0/0, Forward/Sparse, 00:53:52/00:00:00
FastEthernet0/1, Forward/Dense, 00:54:11/00:00:00
(*, 228.0.0.1), 00:53:48/00:02:59, RP 192.168.4.1, flags: SJCF
Incoming interface: Serial0/1, RPF nbr 192.168.1.22
Outgoing interface list:
FastEthernet0/1, Forward/Dense, 00:53:48/00:00:00
Serial0/0, Forward/Sparse, 00:53:48/00:00:00
(192.168.3.2, 228.0.0.1), 00:00:15/00:03:15, flags: CFT
Incoming interface: FastEthernet0/1, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/0, Forward/Sparse, 00:00:16/00:03:13
R2#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:54:22/00:00:00, RP 192.168.4.1, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/0, Forward/Sparse, 00:54:18/00:03:24
Serial0/1, Forward/Sparse, 00:54:22/00:02:49
(*, 228.0.0.1), 00:35:45/00:03:21, RP 192.168.4.1, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Sparse, 00:35:45/00:02:50
Serial0/0, Forward/Sparse, 00:35:45/00:03:21
(192.168.3.2, 228.0.0.1), 00:00:43/00:02:23, flags: PT
Incoming interface: Serial0/1, RPF nbr 192.168.1.21
Outgoing interface list: Null
R3# show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, Z - Multicast Tunnel
Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 228.0.0.1), 00:53:39/stopped, RP 192.168.4.1, flags: SJC
Incoming interface: Serial0/1, RPF nbr 192.168.1.17
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:53:39/00:02:34
Serial0/0, Forward/Sparse, 00:53:39/00:00:00
(192.168.3.2, 228.0.0.1), 00:00:57/00:02:48, flags: JT
Incoming interface: Ethernet0/0, RPF nbr 192.168.2.2
Outgoing interface list:
Serial0/0, Forward/Sparse, 00:00:57/00:02:02
(*, 224.0.1.40), 00:54:33/00:02:24, RP 192.168.4.1, flags: SJCL
Incoming interface: Serial0/1, RPF nbr 192.168.1.17
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:54:33/00:02:34
Serial0/0, Forward/Sparse, 00:54:31/00:00:00
R4#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:54:57/00:00:00, RP 192.168.4.1, flags: SJCL
Incoming interface: Ethernet0/0, RPF nbr 192.168.1.6
Outgoing interface list:
Serial0/1, Forward/Sparse, 00:54:54/00:00:00
Serial0/0, Forward/Sparse, 00:54:55/00:00:00
(*, 228.0.0.1), 00:01:18/00:02:59, RP 192.168.4.1, flags: SP
Incoming interface: Ethernet0/0, RPF nbr 192.168.1.6
Outgoing interface list: Null
(192.168.3.2, 228.0.0.1), 00:01:18/00:02:51, flags: T
Incoming interface: Serial0/0, RPF nbr 192.168.1.1
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:01:18/00:03:14
R5#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:55:53/00:00:00, RP 192.168.4.1, flags: SJCL
Incoming interface: FastEthernet0/1, RPF nbr 192.168.2.1
Outgoing interface list:
FastEthernet0/0, Forward/Sparse, 00:55:53/00:02:41
(*, 228.0.0.1), 00:55:19/00:02:59, RP 192.168.4.1, flags: SJC
Incoming interface: FastEthernet0/1, RPF nbr 192.168.2.1
Outgoing interface list:
FastEthernet0/0, Forward/Sparse, 00:55:15/00:00:00
(192.168.3.2, 228.0.0.1), 00:01:37/00:01:22, flags: CT
Incoming interface: FastEthernet0/0, RPF nbr 192.168.1.5
Outgoing interface list:
FastEthernet0/1, Forward/Sparse, 00:01:37/00:03:26
Kiểm tra
Sử dụng lênh show ip pim rp
R3#show ip pim rp
Group: 228.0.0.1, RP: 192.168.4.1, uptime 00:13:50, expires never
Group: 224.0.1.40, RP: 192.168.4.1, uptime 00:13:50, expires never
Ở R5 tương tụ
Sử dụng lênh Show ip pim rp map
R5#show ip pim rp mapping
PIM Group-to-RP Mappings
Group(s) 224.0.1.39/32
RP 192.168.4.1 (?), v1
Info source: local, elected via Auto-RP
Uptime: 00:11:28, expires: never
Group(s) 224.0.1.40/32
RP 192.168.4.1 (?), v1
Info source: local, elected via Auto-RP
Uptime: 00:11:28, expires: never
Group(s): 224.0.0.0/4, Static
RP: 192.168.4.1 (?)
Ở R3 tương tự
Ta ping từ Host1 đến Host2:kiểm tra trên R3 và R5: debug ip mpacket
R3#
*Mar 1 00:39:48.723: IP(0): s=192.168.3.2 (Ethernet0/0) d=228.0.0.1 id=432, prot=1, len=114(100), not RPF interface
*Mar 1 00:39:48.735: IP(0): s=192.168.3.2 (Serial0/1) d=228.0.0.1 (Ethernet0/0) id=432, prot=1, len=100(100),
mforward
*Mar 1 00:39:48.735: IP(0): s=192.168.3.2 (Serial0/1) d=228.0.0.1 (Serial0/0) id=432, prot=1, len=100(100), mforward
*Mar 1 00:39:50.726: IP(0): s=192.168.3.2 (Ethernet0/0) d=228.0.0.1 id=433, prot=1, len=114(100), mroute olist null
R5#
*Mar 1 00:41:16.447: IP: s=192.168.3.2 (FastEthernet0/0) d=228.0.0.1 (FastEthernet0/1) len 114, mforward
*Mar 1 00:41:18.451: IP: s=192.168.3.2 (FastEthernet0/0) d=228.0.0.1 (FastEthernet0/1) len 114, mforward
*Mar 1 00:41:20.455: IP: s=192.168.3.2 (FastEthernet0/0) d=228.0.0.1 (FastEthernet0/1) len 114, mforward
*Mar 1 00:41:22.459: IP: s=192.168.3.2 (FastEthernet0/0) d=228.0.0.1 (FastEthernet0/1) len 114, mforward
Vẫn dùng sơ đồ trên, ta phải enable multicast trên toàn bộ router. Cấu hình địa chỉ RP tĩnh trên tất cả các router. Ở đây ta sẻ sử dụng R2 làm RP và sử dụng interface loopback 0 của R2 là địa chỉ của RP
Lệnh router(config)# ip pim rp-address 192.168.4.1
Cấu hình
R1#
!
hostname R1
!
enable password cisco
!
no ip domain lookup
ip host Host_1 192.168.3.2
ip host R3 192.168.1.18
ip host R4 192.168.1.14
ip host R5 192.168.1.6
ip host r2 192.168.1.22
!
interface Serial0/0
ip address 192.168.1.1 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
clockrate 64000
!
interface FastEthernet0/1
ip address 192.168.3.1 255.255.255.0
ip pim sparse-mode
no ip mroute-cache
duplex auto
speed auto
!
interface Serial0/1
ip address 192.168.1.21 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
clockrate 64000
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip classless
no ip http server
ip pim rp-address 192.168.4.1
!
End
R2#
!
hostname R2
!
enable password cisco
!
no ip domain lookup
!
ip multicast-routing
interface Loopback0
ip address 192.168.4.1 255.255.255.255
ip pim sparse-mode
!
interface Serial0/0
ip address 192.168.1.17 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
no fair-queue
clockrate 64000
!
interface Serial0/1
ip address 192.168.1.22 255.255.255.252
no ip mroute-cache
ip pim sparse-mode
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip classless
ip http server
ip pim rp-address 192.168.4.1
!
End
R3
!
hostname R3
!
no ip domain lookup
!
ip multicast-routing
!
interface Ethernet0/0
ip address 192.168.2.1 255.255.255.0
ip pim sparse-mode
no ip mroute-cache
half-duplex
!
interface Serial0/0
ip address 192.168.1.13 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
no fair-queue
!
interface Serial0/1
ip address 192.168.1.18 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip http server
ip classless
!
ip pim rp-address 192.168.4.1
End
R4
!
hostname R4
!
enable password cisco
!
ip multicast-routing
interface Ethernet0/0
ip address 192.168.1.5 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
half-duplex
!
interface Serial0/0
ip address 192.168.1.2 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
no fair-queue
interface Serial0/1
ip address 192.168.1.14 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
clockrate 64000
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip classless
ip http server
ip pim rp-address 192.168.4.1
End
R5
!
hostname R5
!
enable password cisco
!
ip subnet-zero
!
no ip domain lookup
!
ip multicast-routing
!
interface FastEthernet0/0
ip address 192.168.1.6 255.255.255.252
ip pim sparse-mode
no ip mroute-cache
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 192.168.2.2 255.255.255.0
ip pim sparse-mode
no ip mroute-cache
duplex auto
speed auto
!
router ospf 1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!
ip classless
ip http server
ip pim rp-address 192.168.4.1
!
End
Show ip mroute
R1#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:54:11/00:00:00, RP 192.168.4.1, flags: SJCL
Incoming interface: Serial0/1, RPF nbr 192.168.1.22
Outgoing interface list:
Serial0/0, Forward/Sparse, 00:53:52/00:00:00
FastEthernet0/1, Forward/Dense, 00:54:11/00:00:00
(*, 228.0.0.1), 00:53:48/00:02:59, RP 192.168.4.1, flags: SJCF
Incoming interface: Serial0/1, RPF nbr 192.168.1.22
Outgoing interface list:
FastEthernet0/1, Forward/Dense, 00:53:48/00:00:00
Serial0/0, Forward/Sparse, 00:53:48/00:00:00
(192.168.3.2, 228.0.0.1), 00:00:15/00:03:15, flags: CFT
Incoming interface: FastEthernet0/1, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/0, Forward/Sparse, 00:00:16/00:03:13
R2#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:54:22/00:00:00, RP 192.168.4.1, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/0, Forward/Sparse, 00:54:18/00:03:24
Serial0/1, Forward/Sparse, 00:54:22/00:02:49
(*, 228.0.0.1), 00:35:45/00:03:21, RP 192.168.4.1, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/1, Forward/Sparse, 00:35:45/00:02:50
Serial0/0, Forward/Sparse, 00:35:45/00:03:21
(192.168.3.2, 228.0.0.1), 00:00:43/00:02:23, flags: PT
Incoming interface: Serial0/1, RPF nbr 192.168.1.21
Outgoing interface list: Null
R3# show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, Z - Multicast Tunnel
Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 228.0.0.1), 00:53:39/stopped, RP 192.168.4.1, flags: SJC
Incoming interface: Serial0/1, RPF nbr 192.168.1.17
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:53:39/00:02:34
Serial0/0, Forward/Sparse, 00:53:39/00:00:00
(192.168.3.2, 228.0.0.1), 00:00:57/00:02:48, flags: JT
Incoming interface: Ethernet0/0, RPF nbr 192.168.2.2
Outgoing interface list:
Serial0/0, Forward/Sparse, 00:00:57/00:02:02
(*, 224.0.1.40), 00:54:33/00:02:24, RP 192.168.4.1, flags: SJCL
Incoming interface: Serial0/1, RPF nbr 192.168.1.17
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:54:33/00:02:34
Serial0/0, Forward/Sparse, 00:54:31/00:00:00
R4#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:54:57/00:00:00, RP 192.168.4.1, flags: SJCL
Incoming interface: Ethernet0/0, RPF nbr 192.168.1.6
Outgoing interface list:
Serial0/1, Forward/Sparse, 00:54:54/00:00:00
Serial0/0, Forward/Sparse, 00:54:55/00:00:00
(*, 228.0.0.1), 00:01:18/00:02:59, RP 192.168.4.1, flags: SP
Incoming interface: Ethernet0/0, RPF nbr 192.168.1.6
Outgoing interface list: Null
(192.168.3.2, 228.0.0.1), 00:01:18/00:02:51, flags: T
Incoming interface: Serial0/0, RPF nbr 192.168.1.1
Outgoing interface list:
Ethernet0/0, Forward/Sparse, 00:01:18/00:03:14
R5#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, s - SSM
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.40), 00:55:53/00:00:00, RP 192.168.4.1, flags: SJCL
Incoming interface: FastEthernet0/1, RPF nbr 192.168.2.1
Outgoing interface list:
FastEthernet0/0, Forward/Sparse, 00:55:53/00:02:41
(*, 228.0.0.1), 00:55:19/00:02:59, RP 192.168.4.1, flags: SJC
Incoming interface: FastEthernet0/1, RPF nbr 192.168.2.1
Outgoing interface list:
FastEthernet0/0, Forward/Sparse, 00:55:15/00:00:00
(192.168.3.2, 228.0.0.1), 00:01:37/00:01:22, flags: CT
Incoming interface: FastEthernet0/0, RPF nbr 192.168.1.5
Outgoing interface list:
FastEthernet0/1, Forward/Sparse, 00:01:37/00:03:26
Kiểm tra
Sử dụng lênh show ip pim rp
R3#show ip pim rp
Group: 228.0.0.1, RP: 192.168.4.1, uptime 00:13:50, expires never
Group: 224.0.1.40, RP: 192.168.4.1, uptime 00:13:50, expires never
Ở R5 tương tụ
Sử dụng lênh Show ip pim rp map
R5#show ip pim rp mapping
PIM Group-to-RP Mappings
Group(s) 224.0.1.39/32
RP 192.168.4.1 (?), v1
Info source: local, elected via Auto-RP
Uptime: 00:11:28, expires: never
Group(s) 224.0.1.40/32
RP 192.168.4.1 (?), v1
Info source: local, elected via Auto-RP
Uptime: 00:11:28, expires: never
Group(s): 224.0.0.0/4, Static
RP: 192.168.4.1 (?)
Ở R3 tương tự
Ta ping từ Host1 đến Host2:kiểm tra trên R3 và R5: debug ip mpacket
R3#
*Mar 1 00:39:48.723: IP(0): s=192.168.3.2 (Ethernet0/0) d=228.0.0.1 id=432, prot=1, len=114(100), not RPF interface
*Mar 1 00:39:48.735: IP(0): s=192.168.3.2 (Serial0/1) d=228.0.0.1 (Ethernet0/0) id=432, prot=1, len=100(100),
mforward
*Mar 1 00:39:48.735: IP(0): s=192.168.3.2 (Serial0/1) d=228.0.0.1 (Serial0/0) id=432, prot=1, len=100(100), mforward
*Mar 1 00:39:50.726: IP(0): s=192.168.3.2 (Ethernet0/0) d=228.0.0.1 id=433, prot=1, len=114(100), mroute olist null
R5#
*Mar 1 00:41:16.447: IP: s=192.168.3.2 (FastEthernet0/0) d=228.0.0.1 (FastEthernet0/1) len 114, mforward
*Mar 1 00:41:18.451: IP: s=192.168.3.2 (FastEthernet0/0) d=228.0.0.1 (FastEthernet0/1) len 114, mforward
*Mar 1 00:41:20.455: IP: s=192.168.3.2 (FastEthernet0/0) d=228.0.0.1 (FastEthernet0/1) len 114, mforward
*Mar 1 00:41:22.459: IP: s=192.168.3.2 (FastEthernet0/0) d=228.0.0.1 (FastEthernet0/1) len 114, mforward
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