Multicasting over GRE - su VPN IPSec

[AndreaBallone]

In allegato la topologia che utilizzo.

Gli ASA normalmente bloccano il traffico Multicast, quindi ho configurato i due router (a cui sono connessi i due host, source e receiver multicast) a tirar sù un tunnel Gre.

Sugli ASA ho solo aggiunto le ACL e regole necessarie per aprire le comunicazioni in VPN statica.
Ho connettività totale: tra le interfacce, tra gli host, tra le loopback, host e loopback..etc.

Ma il Multicast non và:
Faccio joinare il receiver al gruppo 239.1.1.20; poi dal Source faccio ping 239.1.1.20....ma non và!!! (Non ricevo risposta al ping) - Qualcuno ha qlc consiglio su cosa sbaglio?

Vi riporto le config dei due router interessati:

R1-Config (Sender):
dot11 syslog
ip source-route
!
ip cef
ip multicast-routing
multilink bundle-name authenticated
!
!
interface Loopback0
ip address 172.31.1.1 255.255.255.0
!
interface Tunnel0
ip address 192.168.255.1 255.255.255.252
ip pim sparse-dense-mode
tunnel source Loopback0
tunnel destination 172.31.0.1
!
interface FastEthernet0/0
description L3_Multicast
ip address 10.40.50.4 255.255.255.0
ip pim sparse-dense-mode
no ip mroute-cache
duplex auto
speed auto
!
interface FastEthernet0/1
description link_CS
ip address 10.40.0.4 255.255.255.0
duplex auto
speed auto
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 10.40.0.2
ip http server
!
ip pim bidir-enable
control-plane
!
end
----------------------------------------------------------------------------
R0-Config (Receiver):
!
boot-start-marker
boot-end-marker
!
!
ip subnet-zero
ip cef
!
ip ips po max-events 100
ip multicast-routing
no ftp-server write-enable
!
!
no crypto isakmp ccm
!
!
interface Tunnel0
ip address 192.168.255.2 255.255.255.252
ip pim sparse-dense-mode
tunnel source Loopback0
tunnel destination 172.31.1.1
!
interface Loopback0
ip address 172.31.0.1 255.255.255.0
!
interface FastEthernet0/0
description Link_to_IDF_SideB
ip address 192.168.100.10 255.255.255.0
duplex auto
speed auto
!
!
interface Ethernet1/0
description Int_Multicast
ip address 10.40.60.1 255.255.255.0
ip pim sparse-dense-mode
ip virtual-reassembly
half-duplex
!
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.100.1
ip route 10.40.50.10 255.255.255.255 Tunnel0
!
ip http server
no ip http secure-server
ip mroute 10.40.50.0 255.255.255.0 Tunnel0
!
control-plane

[zerokol]

puoi postare uno show ip mroute count?