WB1 8.8 PIM Accept Register

8.8 PIM Accept Register
• Configure R5 so that the only source allowed on the VLAN 146 segment is R6.
• Your configuration should not affect sources on any other segments.

R5:
ip access-list extended VLAN146_SOURCES
deny ip host 155.1.146.6 any
permit ip 155.1.146.0 0.0.0.255 any
!
route-map ACCEPT_REGISTER deny 10
match ip address VLAN146_SOURCES
!
route-map ACCEPT_REGISTER permit 100
!
ip pim accept-register route-map ACCEPT_REGISTER

For our scenario, we create an access-list applied with “negative” filtering in a route-map. The access-list permits all sources on VLAN 146 with the exception of R6. Later, all those sources are denied by the route-map. Everything else is permitted.