HP3000-L Archives

April 2001, Week 4

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Subject:
Re: Routable and non-routable networks
From:
Jeff Woods <[log in to unmask]>
Reply To:
Jeff Woods <[log in to unmask]>
Date:
Mon, 23 Apr 2001 19:52:28 -0600
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At  01:53 PM 4/23/01, James B. Byrne wrote:
>Can anyone provide instructions on HOWTO or point me to an "Idiots Guide"
>that will describe printing from an HP3000 with a routable IP address to
>an External JetDirect box that use a non-routable IP (192.68.0.0/16)
>address? The JetDirect and the HP3000 are on the same wire. In other
>words, there is no intervening router.

Anytime you are sending data from one subnet to another subnet (and that's
determined by the subnet mask and IP address of each node, *not* by the
physical cabling) then a router is required to forward the packets from one
subnet to another.  Said another way, IP packets can *only* be sent to
nodes on the same subnet.  Routers work by being "multi-homed" meaning they
logically (and often physically) are connected to two or more subnets
(whether on the same or separate cabling is irrelevant).

Therefore... to get IP packets from your 3000 to the JetDirect box will
require going through a router of some sort unless you put them on the same
logical subnet.

--
Jeff Woods

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