10-25-2007 10:53 PM - edited 03-03-2019 07:21 PM
Hello everyone:
I have a problem to mount two tunnels with multicast support, I have a server in the IP multicast video 192.168.1.123, group 224.1.1.1 and I must convey this to two multicast tunnels where there are several receivers. But do not get it, someone can help me with this?
Thank you for any help they can give me
pd: A diagram attached
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname cisco2811
!
boot-start-marker
boot-end-marker
!
no aaa new-model
!
!
ip cef
!
!
ip multicast-routing
!
!
voice-card 0
no dspfarm
!
!
!
username admin privilege 15 secret 5 $1$sFpN$SXXXXXXYo.KsE40
!
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface Tunnel0
ip address 10.10.1.1 255.255.255.0
ip pim sparse-dense-mode
tunnel source Loopback0
tunnel destination 217.127.XXX.188
!
interface Tunnel1
ip address 10.10.2.1 255.255.255.0
ip pim sparse-dense-mode
tunnel source Loopback0
tunnel destination 80.32.XXX.125
!
interface FastEthernet0/0
description INTERNAL_LAN$ETH-LAN$
ip address 192.168.1.254 255.255.255.0
ip pim sparse-dense-mode
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet0/1
description WAN$ETH-WAN$
ip address 195.77.XXX.70 255.255.255.248
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
no ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 195.77.XXX.65
ip route 192.168.3.0 255.255.255.0 Tunnel0
ip route 192.168.4.0 255.255.255.0 Tunnel1
!
!
ip http server
ip http access-class 23
ip http authentication local
no ip http secure-server
ip pim bidir-enable
ip nat inside source route-map salida-fibra interface FastEthernet0/1 overload
!
access-list 23 permit 192.168.1.0 0.0.0.255
access-list 120 deny ip 192.168.1.0 0.0.0.255 192.168.3.0 0.0.0.255
access-list 120 deny ip 192.168.1.0 0.0.0.255 192.168.4.0 0.0.0.255
access-list 120 permit ip 192.168.1.0 0.0.0.255 any
!
route-map salida-fibra permit 10
match ip address 120
!
10-26-2007 12:26 AM
Hi,
In the absence of the configs for the other 2800 I have a few questions/tips, which might help you:
I assume you have pim enabled tunnels on the other Cisco 2811 routers with loopback0 as the source and multicast globally configured [ip multicast-routing]
1) You are setup for PIM sparse-dence mode but I don't see any RP or mapping agent config. If you don't configure this on any of your routers, the network will treat the multicast group 224.1.1.1 as a dence mode group. It should still work albeit the traffic will be flooded everywhere initially, then pruned by those routers that have no members
2) You should have ip pim sparse-dense-mode configured on your loopback0 interfaces
3) Are you using Bi-dir? If not disable it on all routers with no ip pim bidir-enable
4) I hope you know that the static routes on the config you gave-
ip route 192.168.3.0 255.255.255.0 Tunnel0
ip route 192.168.4.0 255.255.255.0 Tunnel1
do nothing for your multicast traffic on that router. What you need to do on the other 2811 routers [192.168.4.254 & 192.168.3.254] is to configure ip route 192.168.1.0 255.255.255.0 tunnel
5) Make sure you have ip pim sparse-dense-mode configured on the interfaces [192.168.4.254 & 192.168.3.254]of the other Cisco 2811s.
Check: show ip pim nei On each router should show that the router 192.168.1.254 has 2 neighbours whilst the other routers only have one neighbour [192.168.1.254]
Check: sh ip rpf 192.168.1.123 On the other Cisco 2811s [192.168.4.254 & 192.168.3.254] should show that their tunnel interfaces are the rpf for the source.
HTH
10-26-2007 02:21 AM
HTH hello, thank you very much for your answer, and your suggestions, here attached configuration of two router, which is connected to the Sender multicast and one of the multicast receivers, two receivers are exactly the same.
You might be able to help shape the "RP" or "mapping agent config" because frankly not where to begin this task
Thank you for any help
Router 1: 2811- Connect to Multicast Sender
version 12.4
no service password-encryption
!
hostname cisco2811
!
no aaa new-model
!
!
ip cef
ip multicast-routing
!
username admin privilege 15 secret 5 $1$sFXXXXXX.EReYo.KsE40
!
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
ip pim sparse-dense-mode
!
interface Tunnel0
ip address 10.10.1.1 255.255.255.0
ip pim sparse-dense-mode
tunnel source Loopback0
tunnel destination 217.127.XXX.188
!
interface Tunnel1
ip address 10.10.2.1 255.255.255.0
ip pim sparse-dense-mode
tunnel source Loopback0
tunnel destination 80.32.XXX.125
!
interface FastEthernet0/0
description LOCAL_LAN$ETH-LAN$
ip address 192.168.1.254 255.255.255.0
ip pim sparse-dense-mode
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet0/1
description WAN$ETH-WAN$
ip address 195.77.XXX.70 255.255.255.248
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
ip forward-protocol nd
no ip pim bidir-enable
ip route 0.0.0.0 0.0.0.0 195.77.XXX.65
ip route 192.168.3.0 255.255.255.0 Tunnel0
ip route 192.168.4.0 255.255.255.0 Tunnel1
!
ip nat inside source route-map salida-fibra interface FastEthernet0/1 overload
!
access-list 120 deny ip 192.168.1.0 0.0.0.255 192.168.3.0 0.0.0.255
access-list 120 deny ip 192.168.1.0 0.0.0.255 192.168.4.0 0.0.0.255
access-list 120 permit ip 192.168.1.0 0.0.0.255 any
!
route-map salida-fibra permit 10
match ip address 120
!
Router 2 2811 - Multicast Receiver
version 12.4
service password-encryption
!
ip cef
no ip domain lookup
ip multicast-routing
!
multilink bundle-name authenticated
username admin privilege 15 password 7 104CXXXXx13
!
interface Loopback0
ip address 4.4.4.4 255.255.255.255
ip pim sparse-dense-mode
!
interface Tunnel0
ip address 10.10.1.2 255.255.255.0
ip pim sparse-dense-mode
tunnel source Loopback0
tunnel destination 195.77.XXX.70
!
interface Ethernet0
ip address 192.168.3.251 255.255.255.0
ip pim sparse-dense-mode
ip nat inside
ip virtual-reassembly
hold-queue 100 out
!
interface ATM0
no ip address
no ip route-cache cef
no ip route-cache
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.1 point-to-point
ip address 217.127.XXX.188 255.255.255.192
ip nat outside
ip virtual-reassembly
no ip route-cache
no snmp trap link-status
pvc 8/32
encapsulation aal5snap
!
!
ip route 0.0.0.0 0.0.0.0 ATM0.1
ip route 192.168.1.0 255.255.255.0 Tunnel0
ip nat inside source route-map nonat interface ATM0.1 overload
!
access-list 100 permit ip 192.168.3.0 0.0.0.255 192.168.1.0 0.0.0.255
access-list 120 deny ip 192.168.3.0 0.0.0.255 192.168.1.0 0.0.0.255
access-list 120 permit ip 192.168.3.0 0.0.0.255 any
!
route-map nonat permit 10
match ip address 120
!
Commands en cisco 2811 source multicast
cisco2811#show ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
S - State Refresh Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
cisco2811#show ip rpf 192.168.1.123
RPF information for ? (192.168.1.123)
RPF interface: FastEthernet0/0
RPF neighbor: ? (192.168.1.123) - directly connected
RPF route/mask: 192.168.1.0/24
RPF type: unicast (connected)
RPF recursion count: 0
Doing distance-preferred lookups across tables
10-26-2007 02:42 AM
Hi,
Firstly it looks ti me like your PIM is not working properly, because you have no pim neighbours.
Firstly, let's see if your tunnels work.
On Cisco2811[loop 2.2.2.2]: ping 10.10.1.2 & ping 10.10.2.2
10-26-2007 07:55 AM
Hello cjnwodo:
Yes, both 10.10.1.2 as 10.10.2.2 not work, I have no experience in such tunnels through Loopback, because if the replacement "tunnel source Loopback0" with "tunnel source 195.77. XXX.70 "at all points, the tunnels work perfectly.
Any ideas?
Thanks
10-29-2007 10:55 AM
Hi,
It's ok to use the tunnel source as loopback0. The only caveat is that each router must be able to route to the loopback 0 of the other router.
Quick test: from cisco2811 [192.168.1.254] do the following: ping ip 80.32.xxx.125 source loopback0
IF this doesn't work then you need to make sure that both routers can route to the loopback address of the other.
HTH
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