[Xorp-users] multicast problem

Diogo Della ap010@terra.com.br
Fri, 27 May 2005 13:04:52 -0300


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I have tried initially to use mrouted of FreeBSD. It does not work.

Then I installed xorp and properly configured it, but it does not seems t=
o work too. 

The traffic (udp packets) of one interface it is not routed to the other =
on the two tries (mrouted and xorp). I am using PIM-SM, than the traffic =
should not be replicated to all interfaces, but there is proporly igmp me=
mbership request and pim join running on the network.

The architeture is:

C1 --192.168.67.0/24 --  R1 --192.168.68.0/24-- R2 --192.168.69.0/24-- C2=


The video (multicast traffic) flows from C2 to C1.

C1 sends IGMP Membership Report. R2 receives PIM join. R2 is set as a sta=
tic RP and this seems to be well configured as it can be seem with show p=
im rps.

"show pim mfc" and "show pim mrib" returns nothing. I think this is not c=
onstructing the table but I cant figure out why.

I made another test, taking of R2 and running Xorp to route multicast pac=
kets from 192.168.68.0/24 to 192.168.67.0/24. Nothing again. I tried the =
same with mrouted that should send the traffic to every interface other t=
han where it receives the traffic. Againg nothig.

Can anyone help me?

Additional information:
1- Kernel recompiled with the following options:
options MROUTING
options PIM
options IPFW
options DUMMYNET
and other more of ipfw, ipfw2 and etc..

2- Xorp is configured for
igmp
rip
interfaces
pim4sm
mfea
fea

Thank you all!

Diogo Della

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<DIV style=3D"FONT-SIZE: 14px; FONT-FAMILY: verdana, arial">
<DIV>I have tried initially to use mrouted of FreeBSD. It does not work.<=
/DIV>
<DIV>&nbsp;</DIV>
<DIV>Then I installed xorp and properly configured it, but it does not se=
ems to work too. </DIV>
<DIV>&nbsp;</DIV>
<DIV>The traffic (udp packets) of one interface it is not routed to the o=
ther on the two tries (mrouted and xorp). I am using PIM-SM, than the tra=
ffic should not be replicated to all interfaces, but there is proporly ig=
mp membership request and pim join running on the network.</DIV>
<DIV>&nbsp;</DIV>
<DIV>The architeture is:</DIV>
<DIV>&nbsp;</DIV>
<DIV>C1 --192.168.67.0/24 --&nbsp; R1 --192.168.68.0/24-- R2 --192.168.69=
.0/24-- C2</DIV>
<DIV>&nbsp;</DIV>
<DIV>The video (multicast traffic) flows from C2 to C1.</DIV>
<DIV>&nbsp;</DIV>
<DIV>C1 sends IGMP Membership Report. R2 receives PIM join. R2 is set as =
a static RP and this seems to be well configured as it can be seem with s=
how pim rps.</DIV>
<DIV>&nbsp;</DIV>
<DIV>"show pim mfc" and "show pim mrib" returns nothing. I think this is =
not constructing the table but I cant figure out why.</DIV>
<DIV>&nbsp;</DIV>
<DIV>I made another test, taking of R2 and running Xorp to route multicas=
t packets from 192.168.68.0/24 to 192.168.67.0/24. Nothing again. I tried=
 the same with mrouted that should send the traffic to every interface ot=
her than where it receives the traffic. Againg nothig.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Can anyone help me?</DIV>
<DIV>&nbsp;</DIV>
<DIV>Additional information:</DIV>
<DIV>1- Kernel recompiled with the following options:</DIV>
<DIV>options MROUTING</DIV>
<DIV>options PIM</DIV>
<DIV>options IPFW</DIV>
<DIV>options DUMMYNET</DIV>
<DIV>and other more of ipfw, ipfw2 and etc..</DIV>
<DIV>&nbsp;</DIV>
<DIV>2- Xorp is configured for</DIV>
<DIV>igmp</DIV>
<DIV>rip</DIV>
<DIV>interfaces</DIV>
<DIV>pim4sm</DIV>
<DIV>mfea</DIV>
<DIV>fea</DIV>
<DIV>&nbsp;</DIV>
<DIV>Thank you all!</DIV>
<DIV>&nbsp;</DIV>
<DIV>Diogo Della</DIV>
<DIV>&nbsp;</DIV></DIV>

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