What happens when you ping from R1 or R2 ? I assume R2 knows how to reach 125.125.125.5.
Regards, Antonio Soares, CCIE #18473 (R&S) [email protected] _____ From: [email protected] [mailto:[email protected]] On Behalf Of Rin Sent: quarta-feira, 17 de Junho de 2009 5:23 To: [email protected] Subject: [OSL | CCIE_SP] VOL2 - Section 1 - Task 9.1 Hi all, I cannot ping 239.2.2.2 from R5. Here my information: Configuration for R1: ip multicast-routing interface Loopback0 ip pim sparse-mode interface FastEthernet0/0 interface ATM2/0.105 point-to-point ip pim sparse-mode interface Serial4/2 ip pim sparse-mode ip pim rp-address 125.125.125.2 +++++++++++++++++++++++++++++++++++++++ Configuration on R2: ip multicast-routing interface Loopback0 ip pim sparse-mode ip igmp join-group 239.2.2.2 interface Serial4/2 ip pim sparse-mode interface Serial4/3 ip pim sparse-mode ip pim rp-address 125.125.125.2 +++++++++++++++++++++++++++++++++++++++ Configuration on R5: ip multicast-routing interface Loopback0 ip pim sparse-mode interface ATM2/0.105 point-to-point ip pim sparse-mode interface Serial4/3 ip pim sparse-mode ip pim rp-address 125.125.125.2 +++++++++++++++++++++++++++++++++++++++ Debug on R5 shows packets are forward but no Reply from R2 (note the small dot at the line end) R5#ping Protocol [ip]: Target IP address: 239.2.2.2 Repeat count [1]: 5 Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: y Interface [All]: loopback0 Time to live [255]: Source address: 125.125.125.5 Type of service [0]: Set DF bit in IP header? [no]: Validate reply data? [no]: Data pattern [0xABCD]: Loose, Strict, Record, Timestamp, Verbose[none]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 239.2.2.2, timeout is 2 seconds: Packet sent with a source address of 125.125.125.5 02:55:29: IP(0): s=125.125.125.5 (Loopback0) d=239.2.2.2 (Serial4/2) id=98, ttl=254, prot=1, len=100(100), mroute olist null. 02:55:31: IP(0): s=125.125.125.5 (Loopback0) d=239.2.2.2 (Serial4/3) id=99, ttl=254, prot=1, len=100(100), mforward. 02:55:33: IP(0): s=125.125.125.5 (Loopback0) d=239.2.2.2 (Serial4/3) id=100, ttl=254, prot=1, len=100(100), mforward. 02:55:35: IP(0): s=125.125.125.5 (Loopback0) d=239.2.2.2 (Serial4/3) id=101, ttl=254, prot=1, len=100(100), mforward. 02:55:37: IP(0): s=125.125.125.5 (Loopback0) d=239.2.2.2 (Serial4/3) id=102, ttl=254, prot=1, len=100(100), mforward. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Mrouting table on R2 shows ok: R2#sho ip mroute 239.2.2.2 (*, 239.2.2.2), 00:03:24/stopped, RP 125.125.125.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Loopback0, Forward/Sparse, 00:03:24/00:02:24 (125.125.125.5, 239.2.2.2), 00:01:01/00:02:06, flags: L Incoming interface: Serial4/2, RPF nbr 172.16.52.5 Outgoing interface list: Loopback0, Forward/Sparse, 00:01:01/00:02:24 ++++++++++++++++++++++++++++++++++++++++++++ However, when I show mroute count, the output is confusing: Packets forwarded: 5, Packets received: 5 but Forwarding: 0/0/0/0 R2#sho ip mroute count IP Multicast Statistics 3 routes using 2084 bytes of memory 2 groups, 0.50 average sources per group Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc) Group: 239.2.2.2, Source count: 1, Packets forwarded: 5, Packets received: 5 RP-tree: Forwarding: 5/0/100/0, Other: 5/0/0 Source: 125.125.125.5/32, Forwarding: 0/0/0/0, Other: 0/0/0 Group: 224.0.1.40, Source count: 0, Packets forwarded: 0, Packets received: 0 Can anyone give me some hints? FYI: I'm using Dynamips, all routers are 7200, IOS 12.2(25)S9. My configuration on R6, R7, R8 (task 9.2) works without any problem. Thanks. Rin
