RTEMS BOOTP and Linksys routers
Joel Sherrill <joel@OARcorp.com>
joel.sherrill at OARcorp.com
Wed Apr 27 21:15:27 UTC 2005
Kirspel, Kevin {Engineering - Osmetech} wrote:
> The Linksys router will not issue infinite leases. If one would add dhcp
> renew features to the current networking code where would one begin?
The bootp code is in cpukit/libnetworking/nfs/bootp_subr.c and appears
to be reasonably close to BSD original code. I would start by seeing
what was in there and what the BSD code needed to do to renew.
I am not familiar with the protocol but it may be as simple as spawning
a background task to wakeup periodically and do some subset of the
actions done during bootpc_init.
--joel
> Kevin Kirspel
> Osmetech
> 235 Hembree Park Drive
> Roswell GA, 30076
> 770-510-4444 x568
>
>
> -----Original Message-----
> From: Steve Holle [mailto:sholle at link-comm.com]
> Sent: Wednesday, April 27, 2005 3:02 PM
> To: Kirspel, Kevin {Engineering - Osmetech}; rtems-users at rtems.com
> Subject: Re: RTEMS BOOTP and Linksys routers
>
> Our experience is that some routers do not support bootp or bootp
> needs to be enabled. We wound up using umon to DHCP for an address
> which we then call from RTEMS to get the IP address.
>
> At 12:39 PM 4/27/2005, Kirspel, Kevin {Engineering - Osmetech} wrote:
>
>>I have rtems with networking support running on one of our instruments.
>>When I connect the instrument to our company network, I get a valid IP
>>address and everything seems to be working fine. I then connected the
>>instrument to a Linksys router ( BEFSR41 ) and I cannot get the linksys
>>rounter to give me a bootp reply packet. Instead I get a packet that
>>contains other packet data. Has anyone tried to connect the RTEMS stack
>>to a Linksys router? Here is the packet data I am receiving from the
>>router.
>>
>>Bootpc testing starting
>>bootpc hw address is 0:50:c2:3d:b0:32
>>
>>Packet Data Being Sent:
>>FF FF FF FF FF FF 00 50 C2 3D B0 32 08 00 45 00
>>02 08 00 02 00 00 40 11 78 E4 00 00 00 00 FF FF
>>FF FF 00 44 00 43 01 F4 4C D5 01 01 06 00 FF FF
>>FF 01 00 00 80 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 50 C2 3D B0 32 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 63 82 53 63 FF 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 10 00
>>
>>Packet Data Being Received:
>>FF FF FF FF FF FF 00 04 5A DB 16 CB 08 00 45 00
>>02 40 06 F0 00 00 96 11 5A 14 C0 A8 01 01 00 00
>>00 00 00 43 00 44 02 2C 83 A2 FF FF FF FF FF FF
>>00 04 5A DB 16 CB 08 00 45 00 02 40 06 C5 00 00
>>96 11 5A 3F C0 A8 01 01 00 00 00 00 00 43 00 44
>>02 2C 83 A2 FF FF FF FF FF FF 00 04 5A DB 16 CB
>>08 00 45 00 02 40 06 99 00 00 96 11 5A 6B C0 A8
>>01 01 00 00 00 00 00 43 00 44 02 2C C1 F7 FF FF
>>FF FF FF FF 00 04 5A DB 16 CC 08 00 45 00 02 40
>>00 00 00 00 96 11 22 AE 00 00 00 00 FF FF FF FF
>>00 44 00 43 02 2C 99 85 01 01 06 00 00 A7 28 F8
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 04 5A DB 16 CC 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 63 82 53 63 35 01 01 3D 07 01 00 04
>>5A DB 16 CC 0C 0C 30 30 30 34 35 41 44 42 31 36
>>43 43 FF 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>
>>Kevin Kirspel
>>Osmetech
>>235 Hembree Park Drive
>>Roswell GA, 30076
>>770-510-4444 x568
>
>
> Steve Holle
> Link Communications, Inc.
> 1035 Cerise Rd.
> Billings, MT 59101
> sholle at link-comm.com
>
--
Joel Sherrill, Ph.D. Director of Research & Development
joel at OARcorp.com On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
Support Available (256) 722-9985
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