Re: [gentoo-user] Net / dhcp (miss)behaviour

["Marko Kocić" <marko.kocic@gmail.com>]

> Actually, as long as the interface is up, you can sniff traffic even if
> it does not have an IP address. Emerge wireshark (somehow...), do (as
> root) an "ip link set eth0 up" (or "ifconfig eth0 up") and run
> wireshark. Start capturing packets, run dhcpcd from the command line (or
> whatever DHCP client you use), and see what goes on the wire. You should
> see DHCP discovery/offer/request messages, or maybe not all of them if
> things are not working correctly. For each DHCP packet, look at the DHCP
> payload details from wireshark (you can save the capture for later
> viewing too).
>
> Then, start windows, install wireshark for windows, and do the same. To
> force a DHCP negotiation in windows, open a command prompt and issue
> an "ipconfig /release" followed by an "ipconfig /renew" (IIRC). Look at
> the traffic captured after the /renew command, and look for obvious or
> blatant differences between windows and linux in DHCP packets of the
> same kind.

Thanks for the info. I'll try that.

Also, I just found by googling that there is dhcp client called
net-misc/pump which
have --win-client-ident option. I'll try that too.

Regards,
Marko
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