[ECOS] how does ecos build its routing tables?

[ECOS] how does ecos build its routing tables?

[Lambrecht Jürgen]

Hello,

We cannot set our routing tables correct!
We use the freeBSD network stack.

We configure it with a fixed IP adress (172.24.0.0/13) with netmask 
255.248.0.0.
But always in the routing table the netmaskk 255.255.0.0 is present??
How is this possible?

Here the result of a print of the routing tables (I use functions that 
you can find back on the ecos mailing list):
-----------------------------------------------------------------
Televic telnet shell. Welcome.

$> ifconfig

Routing tables
Destination     Gateway         Mask            Flags    Interface
127.0.0.0       127.0.0.1       255.0.0.0       UG       lo0
127.0.0.1       127.0.0.1                       UH       lo0
172.24.0.0      172.24.0.0      255.255.0.0     U        eth0
Interface statistics
eth0    IP: 172.24.0.11, Broadcast: 172.31.255.255, Netmask: 255.248.0.0
         UP BROADCAST RUNNING MULTICAST MTU: 1500, Metric: 0
         Rx - Packets: 44, Bytes: 3660, Tx - Packets: 23, Bytes: 2090
lo0     IP: 127.0.0.1, Broadcast: 127.0.0.1, Netmask: 255.0.0.0
         UP LOOPBACK RUNNING MULTICAST MTU: 16384, Metric: 0
         Rx - Packets: 0, Bytes: 0, Tx - Packets: 0, Bytes: 0
-----------------------------------------------------------------
Our RedBoot uses the 255.255.0.0 netmask, could that explain it?

And when we add the correct route and then delete the wrong route, our 
network connection goes away - a ping fails..

Any help is appreciated!

Kind regards,
Jürgen

-
Jürgen Lambrecht
R&D Associate
Tel: +32 (0)51 303045    Fax: +32 (0)51 310670
http://www.televic-rail.com
Televic Rail NV - Leo Bekaertlaan 1 - 8870 Izegem - Belgium
Company number 0825.539.581 - RPR Kortrijk

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and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss

Re: [ECOS] how does ecos build its routing tables?

[Lambrecht Jürgen]

On 10/16/2012 04:53 PM, Lambrecht Jürgen wrote:
> Hello,
>
> We cannot set our routing tables correct!
> We use the freeBSD network stack.
>
> We configure it with a fixed IP adress (172.24.0.0/13) with netmask
> 255.248.0.0.
> But always in the routing table the netmaskk 255.255.0.0 is present??
> How is this possible?
We also have a network with netmask 248.0.0.0, and then in the routing 
table the netmask 255.0.0.0 is present.
So I think the freeBSD network stack only can set the netmask in the 
routing table per byte.
Can somebody confirm this?
Any solution?

Regards,
Jürgen
> Here the result of a print of the routing tables (I use functions that
> you can find back on the ecos mailing list):
> -----------------------------------------------------------------
> Televic telnet shell. Welcome.
>
> $>  ifconfig
>
> Routing tables
> Destination     Gateway         Mask            Flags    Interface
> 127.0.0.0       127.0.0.1       255.0.0.0       UG       lo0
> 127.0.0.1       127.0.0.1                       UH       lo0
> 172.24.0.0      172.24.0.0      255.255.0.0     U        eth0
> Interface statistics
> eth0    IP: 172.24.0.11, Broadcast: 172.31.255.255, Netmask: 255.248.0.0
>           UP BROADCAST RUNNING MULTICAST MTU: 1500, Metric: 0
>           Rx - Packets: 44, Bytes: 3660, Tx - Packets: 23, Bytes: 2090
> lo0     IP: 127.0.0.1, Broadcast: 127.0.0.1, Netmask: 255.0.0.0
>           UP LOOPBACK RUNNING MULTICAST MTU: 16384, Metric: 0
>           Rx - Packets: 0, Bytes: 0, Tx - Packets: 0, Bytes: 0
> -----------------------------------------------------------------
> Our RedBoot uses the 255.255.0.0 netmask, could that explain it?
>
> And when we add the correct route and then delete the wrong route, our
> network connection goes away - a ping fails..
>
> Any help is appreciated!
>
> Kind regards,
> Jürgen
>
> -
> Jürgen Lambrecht
> R&D Associate
> Tel: +32 (0)51 303045    Fax: +32 (0)51 310670
> http://www.televic-rail.com
> Televic Rail NV - Leo Bekaertlaan 1 - 8870 Izegem - Belgium
> Company number 0825.539.581 - RPR Kortrijk
>


-- 
Jürgen Lambrecht
R&D Associate
Tel: +32 (0)51 303045    Fax: +32 (0)51 310670
http://www.televic-rail.com
Televic Rail NV - Leo Bekaertlaan 1 - 8870 Izegem - Belgium
Company number 0825.539.581 - RPR Kortrijk

--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss