[Xorp-users] Simple configuration

[Iain Grant]

Thanks Pavlin,

I don't know if a simple PIM-SM is what I need ?
As I said I am new and unexperienced in these things.

A quick explanation of what I am after is this.

I have a Linux box on a network, I want to add a seperate network card to the
box and pass only multicast messages between the two network cards, nothing
else.

Is Xorp my best solution. I don't want to have any other routers involved if I
can help it.

I will admit now, I am not a network expert. That may be why I am 
struggling to
set this up.

Thanks

Iain



Quoting Pavlin Radoslavov <pavlin@icir.org>:

>> Ok I am new to this and have been scratching my head a lot...
>>
>> I have a Linux Fedora 2 server with 2 network cards. eth0 and eth1.
>> eth0 is on a world network, eth1 is on a private network.
>>
>> I want to be able to bridge multicast packets between the two ports. I don't
>> think that should be two difficult, but the dents in the wall and my 
>> desk have
>> proved me wrong.
>>
>> I have modified the simple multicast client and server examples 
>> kicking around
>> in the internet so the server is listenening on my eth1 port. I 
>> don't seem to
>> receive any packets from the client sending 'hello messages'.
>>
>> I have also got ethereal running, listening to traffic on eth1, but I am not
>> seeing any multicast messages.
>>
>> Can someone please help me, my desk and wall solve this.
>>
>> Thanks in advance
>>
>> Iain
>>
>> This is what my config.boot file looks like
>
> Iain,
>
> Two comments about the config below:
>
>  * You don't need the mld section, if you don't need IPv6
>    forwarding. Otherwise, you have to add a mfea6 and pimsm6
>    sections as well.
>
>  * Who is the RP? Inside the pimsm4 section you haven't specified
>    static RPs, and you haven't specified that you are a Candidate
>    BSR or Candidate-RP. Hence, your PIM-SM router will listen for
>    Bootstrap messages from other PIM-SM routers to obtain the
>    RP-Set. If you are not running the Bootstrap mechanism on the
>    other PIM-SM routers in your domain, then no RP-set, and no
>    multicast forwarding.
>
>    If you have a single PIM-SM router, the simplest solution is to
>    add one of its IP addresses to the "static-rps" XORP
>    configuration section.
>    Alternatively, configure it as a "cand-bsr" and a "cand-rp" in
>    the "bootstrap" config section, but after a startup make sure
>    that you wait up to 3 minutes or so until the "show pim rps"
>    xorpsh operational command shows the RP entry.
>
> Regards,
> Pavlin
>
>>
>> ---------------------------------------------------------------
>> interfaces {
>>     interface eth0 {
>>        description: "World interface"
>>        enabled: true
>>        default-system-config
>>     }
>>     interface eth1 {
>>        description: "Private interface"
>>        enabled: true
>>        default-system-config
>>     }
>> }
>>
>> fea {
>>     enable-unicast-forwarding4: true
>> }
>>
>>
>> plumbing {
>>     mfea4 {
>>        enabled: true
>>
>>        interface eth0 {
>>           vif eth0 {
>>              enabled: true
>>           }
>>        }
>>
>>        interface eth1 {
>>           vif eth1 {
>>              enabled: true
>>           }
>>        }
>>
>>        interface register_vif {
>>           vif register_vif {
>>              enabled: true
>>           }
>>        }
>>
>>        traceoptions {
>>           flag all {
>>              enabled: true
>>           }
>>        }
>>     }
>> }
>>
>> protocols {
>>     igmp {
>>        enabled: true
>>
>>        interface eth0 {
>>           vif eth0 {
>>              enabled: true
>>           }
>>        }
>>
>>        interface eth1 {
>>           vif eth1 {
>>              enabled: true
>>           }
>>        }
>>
>>        traceoptions {
>>           flag all {
>>              enabled: true
>>           }
>>        }
>>     }
>> }
>>
>> protocols {
>>     mld {
>>        enabled: true
>>
>>        interface eth0 {
>>           vif eth0 {
>>              enabled: true
>>           }
>>        }
>>
>>        interface eth1 {
>>           vif eth1 {
>>              enabled: true
>>           }
>>        }
>>
>>        traceoptions {
>>           flag all {
>>              enabled: true
>>           }
>>        }
>>     }
>> }
>>
>> protocols {
>>     pimsm4 {
>>        enabled: true
>>
>>        interface eth0 {
>>           vif eth0 {
>>              enabled: true
>>           }
>>        }
>>
>>        interface eth1 {
>>           vif eth1 {
>>              enabled: true
>>           }
>>        }
>>
>>        interface register_vif {
>>           vif register_vif {
>>              enabled: true
>>           }
>>        }
>>
>>
>>        switch-to-spt-threshold {
>>           enabled: true
>>           interval-sec: 100
>>           bytes: 102400
>>        }
>>     }
>> }
>>
>> protocols {
>>     fib2mrib {
>>        enabled: true
>>     }
>> }
>> ---------------------------------------------------------------
>>
>>
>> \"Only two things are infinite, the universe and human stupity, and 
>> I'm not sure
>> about the former.\"
>> - Albert Einstein
>> _______________________________________________
>> Xorp-users mailing list
>> Xorp-users@xorp.org
>> http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/xorp-users
>
>





\"Only two things are infinite, the universe and human stupity, and I'm 
not sure
about the former.\"
- Albert Einstein