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Re: Re: Recent RedBoot/BOOTP change
Gary Thomas wrote:
Well, the DHCP server on RedHat 8.0+ definitely doesn't like it.
It treats it as an invalid lease request, not a BOOTP request at
all, and drops it without any response. At least the old value
was working - and no one complained for years.
I've just noticed that CYGSEM_REDBOOT_NETWORKING_USE_GATEWAY is default
enabled. This option is almost certainly only needed when you are actually
using a gateway for DHCP. We've gotten away with this before simply
because the option has indeed been wrong and been ignored, although I'm
not sure how DHCP-via-gateway can ever have worked.
I wonder if the DHCP server is happier if a gateway is specified with a
real gateway IP address.
But I think the better fix is probably to add a
CYGSEM_REDBOOT_NETWORKING_GATEWAY_DHCP option because just because a
gateway is needed in general doesn't necessarily mean it's required for
DHCP. Then add that option as default disabled under
CYGSEM_REDBOOT_NETWORKING_USE_GATEWAY and change bootp.c to use that instead.
Jifl
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