Date : Sat, 11 Jul 2009 18:58:46 +0100
From : C.J.Thornley@... (Chris Thornley)
Subject: Master Ethernet upgrade
> A bridge is specifically defined as a same-network to same-network
> connection,
> By whom? Citation?
A bridge is esentially a 2 port managed swtch. This operates at Layer 2 and
the layers below it.
This is generally the CISCO defination.
>So as this device process packets based on the Econet hardware address, it
functions as a bridge. It also
>then converts packets to the IP protocol and forwards them as a router. It
also provides translation
>between the networks
A device is catograised by the higest layer it can operate on. Layer 3
devices can operate also on Layer 2 and Layer 1
>a gateway and can runs daemons at the application level - a server, some of
which e.g. SMTP will be a proxy.
Yes this is a layer 7 device capacble of operting on layer 7 and the layers
below it.
But this over complicates things and esentially is not needed and will be
slower.
You only need a layer 3 device to do this task.
This makes me wonder that if there is simple confusion here, what on earth
is the software going to be like?
A router or a managed switch runs a startup-config which becomes a
running-config once the device is booted.
Hopefully things will operate like this on this piece of hardware.
Here is an example of a typical simple router configuration.
The router in this case has 2 serial interfaces and 2 ethernet ports. This
is configured for a specific senario but you get the picture.
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname Lab_C1
!
enable secret 5 $1$KM4e$QRKiRS8bjotGXJTHpq8ip0
enable password 7 14141B180F0B
!
ip subnet-zero
!
!
!
ip host Lab_A1 172.16.1.1 172.16.12.1 172.16.6.1
ip host Lab_B1 172.16.2.1 172.16.7.1 172.16.6.2
ip host Lab_C1 172.16.3.1 172.16.8.1 172.16.7.2
ip host Lab_D1 172.16.4.1 172.16.8.2
ip host Lab_E1 172.16.4.2
!
!
!
interface FastEthernet0/0
description Connection to Small Hub 3
ip address 172.16.3.1 255.255.255.0
duplex auto
speed auto
no shutdown
!
interface FastEthernet0/1
shutdown
!
interface Serial0/0
description Serial Lab_C1s0 to lab_D1s1
bandwidth 56
ip address 172.16.8.1 255.255.255.0
clockrate 56000
no shutdown
!
interface Serial0/1
description Serial Lab_C1s1 to Lab_B1s0
bandwidth 56
ip address 172.16.7.2 255.255.255.0
clockrate 56000
no shutdown
!
router rip
network 172.16.0.0
network 192.168.9.0
!
ip classless
ip http server
ip pim bidir-enable
ip default-gateway 192.168.9.99
!
!
banner motd # LAB_C1 Router #
!
!
line con 0
password 7 104D000A0618
login
speed 115200
line aux 0
password 7 104D000A0618
login
speed 115200
line vty 0 4
password 7 070C285F4D06
login
!
!
end
Chris
/> Christopher J. Thornley is cjt@...
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\> Home Page :-http://www.coolrose.fsnet.co.uk
-----Original Message-----
From: bbc-micro-bounces+c.j.thornley=coolrose.fsnet.co.uk@...
[mailto:bbc-micro-bounces+c.j.thornley=coolrose.fsnet.co.uk@...
uk] On Behalf Of Mark Usher
Sent: 11 July 2009 10:07
To: bbc-micro@...
Subject: Re: [BBC-Micro] Master Ethernet upgrade
-
Suggestions for a new name on a postcard...
-Mark
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