Second Ethernet Port

[faimbs]

Hello!

Is it possible to add a second Ethernet Port for a second network range?

Thanks

[John Syn]

On 12/20/14, 11:10 AM, "faimbs" <fai...@gmail.com> wrote:

>Hello!
>
>Is it possible to add a second Ethernet Port for a second network range?

This cannot be done with BBB because the pins for the second Ethernet Port
are available on the cape connectors. The TI AM335x EVM has two ethernet
ports and there are several third party boards/modules that bring out both
ports.

Regards,
John
>
>Thanks
>
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[faimbs]

Hello John!

There are a second port on the connectors?

Where can I find more information?

Thank you!

[John Syn]

Not all the signals are available. Gerald who designed the board says it
isn¹t possible, and he is the authority on this issue. If you have any
doubt, download the schematic of the AM335x EVM and see if all the signals
are available on the BBB cape connectors.

Regards,
John

>
>Where can I find more information?
>
>Thank you!
>

[meino....@gmx.de]

John Syn <john...@gmail.com> [14-12-21 03:10]:

Hi,

I dont know exactly whether you need a second eth port in the sense of a
physically exiting jack...

But if you need a second IP-address range this can easily be achieved
in linux.

Suppose ifconfig show this:


eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.17.18 netmask 255.255.255.0 broadcast 192.168.178.255
ether XX:XX:fX:XX:bX:XX txqueuelen XXXX (Ethernet)
RX packets XXXXXX bytes XXXXXXXXX (XXX.X MiB)
RX errors X dropped X overruns X frame X
TX packets XXXXX bytes XXXXXXX (X.X MiB)
TX errors X dropped X overruns X carrier X collisions X
device interrupt XX



and you need for example another eth interface with the address
192.168.00.7
submit the command

ifconfig eth0:1 192.168.00.7 up

and there it is...

HTH!

Best regards,
Meino

[faimbs]

Hello John!

Thank you!

The Reason is that I want to build an own physical network range.
Isolated Form the Main network.

USB to ETH is also not possible?

Thanks

[Thorsten von Eicken]

Another alternative is to use VLANs, assuming your switch supports that. I'm using an ODROID as firewall/router and it also onlu has one ethernet port, so I simply use two vlans. (The purists will say that this is not as secure as two physical ports, but I'm ok with that.)