Hello guys, I am having a multicast problem for the past 3 days. When I go to my cat500 switcha and type: show multicast group, I can't see the mac address. I have 3 routers running dense mode and they are all connect to the cat switch in the same vlan.I am running multicast on the switch to.... Any help will be great: This is the config: R8 interface Loopback0 ip address 172.16.250.1 255.255.255.0 no ip directed-broadcast ip pim dense-mode ip igmp join-group 226.6.6.6 ! interface Ethernet0/0 ip address 172.16.23.3 255.255.255.0 no ip directed-broadcast ! interface Serial0/0 encapsulation frame-relay ! interface Serial0/0.1 point-to-point ip address 172.16.11.8 255.255.255.0 no ip directed-broadcast ip pim dense-mode frame-relay interface-dlci 802 ! interface Serial0/0.2 multipoint ip address 172.16.10.8 255.255.255.0 no ip directed-broadcast ip pim dense-mode ip ospf network point-to-multipoint frame-relay map ip 172.16.10.9 809 broadcast frame-relay map ip 172.16.10.12 812 broadcast ! router ospf 100 network 172.16.0.0 0.0.255.255 area 0 r12 ip multicast-routing ip dvmrp route-limit 20000 ! interface Ethernet0 ip address 172.16.13.1 255.255.255.0 ip cgmp ! interface Serial0 ip address 172.16.10.12 255.255.255.0 ip pim dense-mode encapsulation frame-relay ip ospf network point-to-multipoint frame-relay map ip 172.16.10.8 128 broadcast frame-relay lmi-type cisco ! router ospf 100 network 172.16.0.0 0.0.255.255 area 0 r2 hostname r2 ! ip subnet-zero ! ip multicast-routing ip dvmrp route-limit 20000 cns event-service server ! ! ! interface Ethernet0 ip address 172.16.13.2 255.255.255.0 ip pim dense-mode no ip route-cache ip cgmp no ip mroute-cache ! interface Serial0 ip address 172.16.11.2 255.255.255.0 ip pim dense-mode encapsulation frame-relay no ip route-cache ip ospf network point-to-multipoint no ip mroute-cache logging event subif-link-status logging event dlci-status-change frame-relay map ip 172.16.11.8 208 broadcast _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20604&t=20604 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]