[lwip-devel] [patch #6721] Allow faster AutoIP fallback when LWIP_DHCP_AUTOIP_COOP is set

[Jakob Stoklund Olesen]

URL:
  <http://savannah.nongnu.org/patch/?6721>

                 Summary: Allow faster AutoIP fallback when
LWIP_DHCP_AUTOIP_COOP is set
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: stoklund
            Submitted on: Tue 13 Jan 2009 05:00:09 PM CET
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

Patch is against STABLE-1_3_0

The new opt.h macro DHCP_AUTOIP_COOP_TRIES is the number of DHCP
requests to send before starting AutoIP. The default value of 9 causes same
behaviour as before. A lower value allows an AutoIP address to be configured
much faster when there is no DHCP server.

Address some bugs when DHCP gets an IP address after AutoIP has started.
This is more likely to happen when AutoIP is started quickly.

- Turn AutoIP off before binding the new DHCP address.
- Don't set ciaddr unless in BOUND, RENEWING, or REBINDING state as per RFC
2131.




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File Attachments:


-------------------------------------------------------
Date: Tue 13 Jan 2009 05:00:10 PM CET  Name: dhcp-autoip-fast-coop  Size: 3kB
  By: stoklund

<http://savannah.nongnu.org/patch/download.php?file_id=17253>

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