buglwIP - A Lightweight TCP/IP stack - Bugs: bug #24479, Using LwIP for a gateway...

 
 

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bug #24479: Using LwIP for a gateway application

Submitted by:  Abhinay Patil <abhinaypatil>
Submitted on:  Tue 07 Oct 2008 02:51:57 PM UTC  
 
Category: NoneSeverity: 3 - Normal
Item Group: Feature RequestStatus: Invalid
Privacy: PublicAssigned to: None
Open/Closed: ClosedPlanned Release: None
lwIP version: 1.3.0

Tue 07 Oct 2008 03:06:02 PM UTC, comment #1:

The right place for such queries is the -unavailable- mailing list. I suggest you subscribe to that and post your query there. I'll close this bug.

Kieran Mansley <kieranm>
Project Administrator
Tue 07 Oct 2008 02:51:57 PM UTC, original submission:

Hello,
I am in need of some support in using lwIP for my application. This particular post is not to submit any bugs or such, but is a request for some information on the use of lwIP for my application. I am not sure whether this is the right place to post such a query. But since I couldn't find any other link on this website to post queries, I am going ahead with this post. I hope you will be able to reply on the queries, or atleast guide me to the proper channel for such queries (if this is not the one!). Thanks in advance.
Here's what I intend to do in my application:
I have a DSP processor with 2 ethernet ports and running lwIP stack. One port is to receive the incoming traffic and other port for outgoing traffic. The processor is expected to either filter or pass through the incoming traffic to the output port based on certain conditions. For this, the DSP should receive all the IP packets coming to the input port, regardless of the fact whether those packets were addressed to that port or not. The DSP will then analyse the packets and use some proprietary conditions to determine whether that packet has to be processed or just passed on to the output port. While passing on the packets to the output port, the DSP should ensure that the packets are in exactly the same format as they were when they entered the input port (i.e. the original source address and other control data etc..)
I hope I have explained my application clearly. I need your help in understanding where exactly to modify the lwIP stack to achieve this. (Just for your information, I already have a project with 2 ethernet ports running under lwIP. I need your help in the packet handling and forwarding part of the application.)

Thanks and regards,
Abhinay

Abhinay Patil <abhinaypatil>

 

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Carbon-Copy List
  • -unavailable- added by kieranm (Posted a comment)
  • -unavailable- added by abhinaypatil (Submitted the item)
  • -unavailable- added by abhinaypatil
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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Tue 07 Oct 2008 03:06:02 PM UTCkieranmStatusNone=>Invalid
      Open/ClosedOpen=>Closed
    Tue 07 Oct 2008 02:51:57 PM UTCabhinaypatilCarbon-Copy-=>Added -unavailable-

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