From: Jongsoo (bstrt2004@gmail.com)
Date: Sun Oct 16 2005 - 23:49:19 GMT-3
That proves the multicast should be 1.
What about the broadcast/unicast rip packets?
I think they all should be 1 as well
Are there any supporting standards? or IOS just does that?
On 10/16/05, Scott Morris <swm@emanon.com> wrote:
>
> All packets using 224.0.0.x (link local multicast) are, as defined, link
> local. Meaning the TTL is 1.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Chris
> Sent: Sunday, October 16, 2005 10:13 PM
> To: 'Tim'; ccielab@groupstudy.com
> Subject: RE: TTL on RIP updates
>
> Looking through the RFC, there does not seem to be anything that specifies
> that an IP packet containing a RIP update should mark IP header TTL any
> differently then whatever the default IP stack implementation dictates for
> a
> TTL. I would not think there would be any reason to do so since RIP
> normally
> sends updates to neighbors by broadcast or multicast which would bound the
> packet to the closest router where TTL would normally decrement, but that
> is
> just me theorizing. As I said the rfc does not say anything about marking
> the IP header TTL for RIP any differently.
>
>
>
>
> Chris
>
>
>
> --------------------------------------------------
>
> Christopher Larson CCIE#12380, PMP
> Superior Technology Networks Corp
> www.supertechnetworks.com <http://www.supertechnetworks.com> - Technology
> Consulting www.ccierackrental.com <http://www.ccierackrental.com>
> -Cisco Rack Rental
> tel: 703 577 3303 fax: 703 286 5018
>
> --------------------------------------------------
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Tim
> Sent: Sunday, October 16, 2005 4:24 PM
> To: ccielab@groupstudy.com
> Subject: TTL on RIP updates
>
> Hi guys,
>
>
>
> I seem to recall that the TTL for rip updates is 2.
>
>
>
> Is that true only if the neighbor command is used? Or if the default dest
> address is 224.0.0.9 <http://224.0.0.9>? Or, never?
>
>
>
> TIA, Tim
>
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