From: Lachlan Kidd (lkidd@xxxxxxxxxxxxxxxxxxx)
Date: Wed Apr 25 2001 - 07:40:23 GMT-3
I stand corrected, sorry about that.
L
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Haohong Lin
Sent: Tuesday, 24 April 2001 8:19:PM
To: Lachlan Kidd
Cc: CCIELab
Subject: RE: Multicast
Hi Lachlan
Local multicast address ranges from 224.0.0.0 to 224.0.0.255, not all
224.0.0.0 subnet.
Regards,
Haohong Lin
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Lachlan Kidd
Sent: 2001 04 24 18:19
To: Haohong Lin; CCIELab
Subject: RE: Multicast
Hi Haohong,
I might well be wrong, but I seem to recall that addresses that being w
ith
224 are confined to a single LAN, that is packets containing these addresses
have a TTL of 1 hence routers will not pass them. Try 239 or something else.
Regards,
Lachlan
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Haohong Lin
Sent: Tuesday, 24 April 2001 4:02:PM
To: CCIELab
Subject: Multicast
Hi, group
I configure R1, R2, and R3 for IP multicast routing. I can ping
224.10.1.1 and 224.20.1.1 on R3, and ping 224.10.1.1 and 224.30.1.1 on R2,
but I can't ping 224.20.1.1 and 224.30.1.1on R1.
<------ TEST PART ------>
R1:
R1#ping 224.20.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.20.1.1, timeout is 2 seconds:
.
R1#ping 224.30.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.30.1.1, timeout is 2 seconds:
.
R1#
R2:
R2#ping 224.10.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.10.1.1, timeout is 2 seconds:
Reply to request 0 from 172.16.10.3, 4 ms
Reply to request 0 from 172.16.10.3, 8 ms
R2#ping 224.30.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.30.1.1, timeout is 2 seconds:
Reply to request 0 from 172.16.2.1, 4 ms
Reply to request 0 from 172.16.2.1, 8 ms
R2#
R3:
R3#ping 224.10.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.10.1.1, timeout is 2 seconds:
Reply to request 0 from 172.16.10.3, 8 ms
R3#ping 224.20.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.20.1.1, timeout is 2 seconds:
Reply to request 0 from 172.16.2.2, 4 ms
R3#
<---- TOPO --->
R1(f0/0:224.10.1.1)
\
\ ISL
+ ----------------R2(lo0:224.20.1.1)
/
/
R3(e0:224.30.1.1)
<---- CONFIG ---->
R1:
ip multicast-routing
ip dvmrp route-limit 20000
interface FastEthernet0/0
ip address 172.16.10.3 255.255.255.0
ip pim sparse-dense-mode
ip igmp join-group 224.10.1.1
ip cgmp
router eigrp 1
network 172.16.0.0
no auto-summary
!
R2:
ip multicast-routing
ip dvmrp route-limit 20000
interface Loopback0
ip address 172.16.11.2 255.255.255.0
ip pim sparse-dense-mode
ip igmp join-group 224.20.1.1
!
!
interface FastEthernet2/0
!
interface FastEthernet2/0.10
encapsulation isl 10
ip address 172.16.10.2 255.255.255.0
ip pim sparse-dense-mode
ip cgmp
!
interface FastEthernet2/0.20
encapsulation isl 20
ip address 172.16.2.2 255.255.255.0
ip pim sparse-dense-mode
ip cgmp
!
!
router eigrp 1
network 172.16.0.0
no auto-summary
!
R3:
!
ip multicast-routing
ip dvmrp route-limit 20000
!
interface Ethernet0
ip address 172.16.2.1 255.255.255.0
ip pim sparse-dense-mode
ip igmp join-group 224.30.1.1
ip cgmp
!
!
router eigrp 1
network 172.16.0.0
no auto-summary
!
regards,
Haohong Lin
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