Re: [ECOS] PCI Ethernet card (DHCP issue)

[Eric Doenges <Eric dot Doenges at DynaPel dot com>]

Andrew Lunn wrote:
> On Sun, Sep 14, 2003 at 12:53:41AM +0000, Michael Anburaj wrote:
>
> > Hi,
> >
> > The DHCP protocol was successful with Redboot, but fails with ecos. After 
> > analyzing the packet captures using ethereal, I found some differences in 
> > the "DHCP Discover" packet --> under Bootstrap protocol --> BootP Flags = 
> > 0x8000 (in case of ecos) & 0x0000 (in case of redboot).
>
>
> Redboot uses BOOTP and normally eCos uses DHCP. This could be the flag
> that differentiates between the two.

I'd just like to add here that ethereal claims this is the 'broadcast'
flag - since I'm no expert on BOOTP/DHCP, I don't know what this means
exactly.

> > In the case of redboot, the DHCP server (RH9 running my dhcpd.conf) 
> > responds with the DHCP offer soon after seeing the DHCP discover packet. 
> > But in case of ecos it responds 4 times after 4 DHCP discover packets.
> >
> > Please suggest me a way to debug this issue.
>
>
> Put some breakpoints in do_dhcp. One on each recvfrom will probably
> do. Run the code and see why its dropping the replys.
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