by Gunnar Helliese » Wed, 06 Dec 1995 04:00:00
Anyone tried using the code on http://www.apache.org/docs/vif.info to build
support for virtual interfaces into the kernel of DEC Ultrix 4.x?
Experiences, hints, patches, things to do/avoid??
Gunnar
-- __ _
Gunnar Helliesen | This .sig is | / / (_)__ __ ____ __| The choice
Systems Consultant| stolen property!| / /__/ / _ \/ // /\ \/ /| of a GNU
1. one physical interface, 3 virtual interfaces, and inetd
I have an embedded box with a single ethernet interface that I will
configure as some number of virtual interfaces:
eth0:0 - 192.168.1.1
eth0:1 - 192.168.1.2
eth0:2 - 192.168.1.3
A request will come in on a particular interface and port, say
192.168.1.2:8037 and will invoke a program.
Here's the part I don't understand:
The program that is invoked has to take different action depending on
which IP address was used.
Is there some way for a program invoked by inetd to get the connection
information?
The program acts as an intelligent relay of sorts, acting as a bridge
between the requestor on the network and a piece of hardware connected
to a serial port.
For reasons of scalability, it would be much easier to have 1 serial
mapped to 1 IP address; there are hundreds of these clusters, and some
have 1, 2, 3, or 4 connections.
(Yes I could probably do it with sockets, but I already have the bridge
software written and tested with inetd, so why reinvent the wheel if I
don't have to....)
--Yan
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