[j-nsp] IGMP problem

[Vladislav Vasilev]

Robert,

Just noticed you actually have "ip pim passive" under the interface...

The "ip igmp join-group" in Cisco IOS generates IGMP joins (and PIM joins upstream), and packets sent to the group address get sent up to the CPU (the router would reply back to icmp-echo packets sent to the group address - convenient for troubleshooting).

On the other hand, the "ip igmp static-group" in Cisco IOS generates IGMP joins (and PIM joins upstream), but packets sent to the group address do not get sent up to the CPU.

As Krasi said, in JunOS, you still have the PIM joins upstream, but no IGMP joins are generated.

Regards,
Vladislav A. VASILEV


On 10 Sep 2013, at 11:24, Krasimir Avramski wrote:

> Hello,
> Actually this config generates PIM (*,G) joins upstream to RP.
> I'm not aware of static igmp joins(generated) or igmp proxies support in junos (excluding junosE) - though there is a  feature that translates PIM to IGMP/MLD  
> 
> Krasi
> 
> 
> On 10 September 2013 12:55, Vladislav Vasilev <vladislavavasilev at gmail.com> wrote:
> Hi Robert,
> 
> What you have below only adds the interface to the OIL for that group. No IGMP joins are generated!
> 
> Regards,
> Vladislav A. VASILEV
> 
> 
> On 10 Sep 2013, at 07:51, Robert Hass wrote:
> 
> > Hi
> > I would like to setup static IGMP joins between Cisco and Juniper.
> > But it's not working. Juniper is not sending IGMP Joins.
> > Same configuration Cisco + Cisco working without issues. Any clues ?
> >
> > Interface configuration for Juniper at Cisco side:
> >
> > interface GigabitEthernet1/1/1
> > description Juniper
> > no switchport
> > ip address 10.10.10.21 255.255.255.252
> > ip pim passive
> > !
> >
> > Here is output of IGMP membership - none :(
> >
> > cisco#sh ip igmp membership | include GigabitEthernet1/1/1
> > cisco#
> >
> > Here is JunOS configuration:
> >
> > interfaces {
> >    ge-0/0/0 {
> >        unit 0 {
> >            family inet {
> >                address 10.10.10.22/30;
> >            }
> >        }
> >    }
> > routing-options {
> >    static {
> >        route 0.0.0.0/0 next-hop 10.10.10.21;
> >    }
> > }
> > protocols {
> >    igmp {
> >        interface ge-0/0/0.0 {
> >            version 2;
> >            static {
> >                group 231.0.0.3;
> >                group 231.0.0.4;
> >            }
> >        }
> >    }
> >    pim {
> >        rp {
> >            static {
> >                address 10.10.10.255 {
> >                    version 2;
> >                }
> >            }
> >        }
> >        interface ge-0/0/0.0 {
> >            mode sparse;
> >            version 2;
> >        }
> >        join-load-balance;
> >    }
> > }
> >
> > Rob
> > _______________________________________________
> > juniper-nsp mailing list juniper-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/juniper-nsp
> 
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