Multicast AutoRP

From: Nick Davey (nicky.davey@gmail.com)
Date: Tue Jul 25 2006 - 07:39:57 ART


Hi all,

I configured autorp as follows:

ip pim send-rp-announce Loopback0 scope 16 group-list MCast

ip access-list standard MCast
 deny 239.0.0.0 0.255.255.255
 permit 232.0.0.0 7.255.255.255

When i do a show ip pim rp mapping i see the following

Group(s) 232.0.0.0/5
  RP 150.1.6.6 (?), v2v1
    Info source: 150.1.6.6 (?), elected via Auto-RP
         Uptime: 00:32:43, expires: 00:02:13
Group(s) (-)239.0.0.0/8
  RP 150.1.6.6 (?), v2v1
    Info source: 150.1.6.6 (?), elected via Auto-RP
         Uptime: 00:32:43, expires: 00:02:16

Why is group 239.0.0.0 assigned an RP when it is denied in the ACL?

And what does the (-) before 239.0.0.0/8 mean?

Hope someone can answer this

Regards,

Nick



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