From: Vazman (vazman@gmail.com)
Date: Tue May 24 2005 - 22:02:53 GMT-3
Thanks for that info. But when a router or a host generate an arp or
any other kind of broadcast, which address is used when?
Thanks.
On 5/24/05, ccie2be <ccie2be@nyc.rr.com> wrote:
> Typically, routers don't send or forward broadcast traffic. For a router to
> do so, it's behaving in a non default manner.
>
> Various host protocols, on the hand, do use broadcasts for a variety of
> functions: arp, dhcp, and depending on the desktop OS and underlying
> transport protocols a whole slew of other reasons. Windows based hosts used
> to generate a lot of broadcast traffic although I don't know how true that
> still is.
>
> Off-hand, the only time I can think of when a router generates a directed
> broadcast is if it's configured with a helper-address which uses a
> directed-broadcast address parameter or if the router is configured to
> behave like a host. For example, you can configure a router interface as a
> dhcp client.
>
> A router also uses arp so that will generate a broadcast.
>
> HTH, Tim
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Ccie
> Be
> Sent: Tuesday, May 24, 2005 4:43 PM
> To: ccielab@groupstudy.com
> Subject: Broadcast address
>
> Lets say a router has an ethernet interface with IP 192.168.1.1/24. When
> would it use the broadcast address 192.186.1.255 vs 255.255.255.255. Any
> good examples would be helpful.
>
> Thanks.
>
>
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