From: Khalid Nafie (knafie@xxxxxxxxxx)
Date: Fri Nov 02 2001 - 13:24:50 GMT-3
Well i tried something,i added one more group to the Ethernet interface of
the router directky connected to the cat and the cat can ping this group.
i noticed something else that the RP gives strange message after any try to
ping:
R1#ping 224.7.7.7
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.7.7.7, timeout is 2 seconds:
Reply to request 0 from 10.100.1.7, 216 ms
Reply to request 0 from 10.100.1.7, 508 ms
Reply to request 0 from 10.100.1.7, 420 ms
R1#
*Nov 3 09:56:34: IP: MAC sa=**Unknown SNPA type** (Loopback0)
*Nov 3 09:56:34: IP: IP tos=0x0, len=100, id=0x6, ttl=254, prot=1
*Nov 3 09:56:34: IP: s=100.100.100.100 (Loopback0) d=224.7.7.7 len 100,
mroutin
g interface disabled
R1#ping 224.3.3.3
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.3.3.3, timeout is 2 seconds:
.
R1#
*Nov 3 09:56:45: IP: MAC sa=**Unknown SNPA type** (Loopback0)
*Nov 3 09:56:45: IP: IP tos=0x0, len=100, id=0x7, ttl=254, prot=1
*Nov 3 09:56:45: IP: s=100.100.100.100 (Loopback0) d=224.3.3.3 len 100,
mroutin
g interface disabled
R1#
does any one face this b4?
-----Original Message-----
From: Khalid Nafie [mailto:knafie@ncr.com.kw]
Sent: Friday, November 02, 2001 7:35 AM
To: ccielab@groupstudy.com
Subject: Multicasting and CAt
Dear,
In boot camp #20 they r asking to make the cat ping the multicast
group,is this possible?
for me it didn't work,the switch is aware of the cgmp groups and knows the
routers that is participating in the multicasting but it still can't ping
the multicast group, any comments?
do we need to enable igmp as well?
Cat> (enable) sh multi gr
CGMP enabled
IGMP disabled
VLAN Dest MAC/Route Des Destination Ports or VCs / [Protocol Type]
---- ------------------
----------------------------------------------------
2 01-00-5e-00-01-28* 3/2-3
Total Number of Entries = 1
Cat> (enable) sh cgmp
Usage: show cgmp statistics [vlan_id]
show cgmp leave
Cat> (enable) sh cgm sta 2
CGMP enabled
CGMP statistics for vlan 2:
valid rx pkts received 8442
invalid rx pkts received 0
valid cgmp joins received 8424
valid cgmp leaves received 18
valid igmp leaves received 0
valid igmp queries received 15
igmp gs queries transmitted 0
igmp leaves transmitted 6
failures to add GDA to EARL 0
topology notifications received 4
number of CGMP packets dropped 0
Cat> (enable) sh mult router
CGMP enabled
IGMP disabled
Port Vlan
--------- ----------------
3/2 2
3/3 2
Total Number of Entries = 2
'*' - Configured
Cat> (enable) ping 224.1.1.1
no answer from 224.1.1.1
Cat> (enable) ping 10.100.1.1
10.100.1.1 is alive
Cat> (enable)
Cat> (enable) set igm
Usage: set igmp <enable|disable>
Cat> (enable) set igm ena
IGMP feature is not supported on this version of supervisor module
Cat> (enable)
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