Re: wild card mask for mulitcast

Forte

my question isn't doubting the TTL rather the reasoning behind it, if
you read my question again :)

On 17 March 2013 20:56, <oghenetejiri.groupstudy_at_gmail.com> wrote:
> Would add screen and packet captures but do not have internet access except
> for my blackberry.
>
> Just as Nabrik suggested. Connect two routers together in GNS3 and run the
> protocols...GNS3 comes with wireshark these days, so you can easily see
> their respective TTLs from the packet captures.
>
> Will update with packet captures once I get internet access for my laptop
> anyway.
>
> Regards
>
>
> FORTE
> Sent from my BlackBerry. wireless device
> ________________________________
> From: marc edwards <renorider_at_gmail.com>
> Date: Sun, 17 Mar 2013 13:49:16 -0700
> To: oghenetejiri.groupstudy_at_gmail.com<oghenetejiri.groupstudy_at_gmail.com>
> Cc: Narbik Kocharians<narbikk_at_gmail.com>; Tony Singh<mothafungla_at_gmail.com>;
> Imran Ali<immrccie_at_gmail.com>; Cisco certification<ccielab_at_groupstudy.com>
> Subject: Re: wild card mask for mulitcast
>
> I will take your word for it :D
>
> On Sunday, March 17, 2013, wrote:
>>
>> Hi All,
>>
>> Just confirmed.
>>
>> EIGRP and RIP, TTL of 2 while OSPF, TTL of 1
>>
>> HTH
>>
>> FORTE
>> Sent from my BlackBerry. wireless device
>>
>> -----Original Message-----
>> From: Narbik Kocharians <narbikk_at_gmail.com>
>> Sender: nobody_at_groupstudy.com
>> Date: Sun, 17 Mar 2013 13:17:26
>> To: marc edwards<renorider_at_gmail.com>
>> Reply-To: Narbik Kocharians <narbikk_at_gmail.com>
>> Cc: Tony Singh<mothafungla_at_gmail.com>; Imran Ali<immrccie_at_gmail.com>;
>> Cisco certification<ccielab_at_groupstudy.com>
>> Subject: Re: wild card mask for mulitcast
>>
>> marc,
>>
>> Please configure two routers running RIPv2 and capture some packets and
>> check the TTL field. I think we all know the documents. I don't have
>> dynamips loaded on my laptop.
>>
>> Thanks
>>
>> On Sun, Mar 17, 2013 at 11:35 AM, marc edwards <renorider_at_gmail.com>
>> wrote:
>>
>> >
>> >
>>
>> http://www.cisco.com/en/US/tech/tk828/technologies_white_paper09186a00802d464
>> 3.shtml
>> >
>> > Local Network Control Block
>> >
>> > The range of 224.0.0.0 through 224.0.0.255 is considered the Local
>> > Network Control Block more commonly known as the Link-Local Block and
>> > is used by network protocols on a local subnet segment. Packets with
>> > an address in this range are local in scope and always should be
>> > transmitted with a Time To Live (TTL) of 1 so that they go no farther
>> > than the local subnet.
>> >
>> > Table 2 is a list of the Link-Local multicast addresses taken directly
>> > from the IANA database at the time this paper was written. The table
>> > lists the reserved multicast addresses, the network protocol function
>> > to which it has been assigned, and the person who requested the
>> > address or the RFC associated with the protocol.
>> >
>> > Table 2 Local Network Control Block
>> >
>> > Address
>> > Usage
>> > Reference
>> > 224.0.0.1
>> >
>> > All Hosts
>> >
>> > [RFC 1112, JBP]
>> >
>> > 224.0.0.2
>> >
>> > All Multicast Rrouters
>> >
>> > [IANA]
>> >
>> > 224.0.0.3
>> >
>> > Unassigned
>> >
>> > [IANA]
>> >
>> > 224.0.0.4
>> >
>> > DVMRP Routers
>> >
>> > [RFC 1075, JBP]
>> >
>> > 224.0.0.5
>> >
>> > OSPF Routers
>> >
>> > [RFC 1583, JXM1]
>> >
>> > 224.0.0.6
>> >
>> > OSPF Designated Rrouters
>> >
>> > [RFC 1583, JXM1]
>> >
>> > 224.0.0.7
>> >
>> > ST Routers
>> >
>> > [RFC 1190, KS14]
>> >
>> > 224.0.0.8
>> >
>> > ST Hosts
>> >
>> > [RFC 1190, KS14]
>> >
>> > 224.0.0.9
>> >
>> > RIP2 Routers
>> >
>> > [RFC 1723, SM11]
>> >
>> > 224.0.0.10
>> >
>> > IGRP Routers
>> >
>> > [Farinacci]
>> >
>> > 224.0.0.11
>> >
>> > Mobile-Agents
>> >
>> > [Bill Simpson]
>> >
>> > 224.0.0.12
>> >
>> > DHCP Server/Relay Agent
>> >
>> > [RFC1884]
>> >
>> > 224.0.0.13
>> >
>> > All PIM Routers
>> >
>> > [Farinacci]
>> >
>> > 224.0.0.14
>> >
>> > RSVP-ENCAPSULATION
>> >
>> > [Braden]
>> >
>> > 224.0.0.15
>> >
>> > all-cbt-routers
>> >
>> > [Ballardie]
>> >
>> > 224.0.0.16
>> >
>> > designated-sbm
>> >
>> > [Baker]
>> >
>> > 224.0.0.17
>> >
>> > all-sbms
>> >
>> > [Baker]
>> >
>> > 224.0.0.18
>> >
>> > VRRP
>> >
>> > [Hinden]
>> >
>> > 224.0.0.19
>> >
>> > IPAllL1Iss
>> >
>> > [Przygienda]
>> >
>> > 224.0.0.20
>> >
>> > IPAllL2Iss
>> >
>> > [Przygienda]
>> >
>> > 224.0.0.21
>> >
>> > IPAllIntermediate Systems
>> >
>> > [Przygienda]
>> >
>> > 224.0.0.22
>> >
>> > IGMP
>> >
>> > [Deering]
>> >
>> > 224.0.0.23
>> >
>> > GLOBECAST-ID
>> >
>> > [Scannell]
>> >
>> > 224.0.0.24
>> >
>> > Unassigned
>
>
>
> --
> Marc Edwards - CCIE #38259

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Received on Sun Mar 17 2013 - 20:58:27 ART