DHCP and Win7

Tue Feb 26 15:55:38 UTC 2013

Hello!
Are you sure that your problem lies on DHCP level? Have you tested the
connectivity between windows 7 client and the dhcp server using static
addresses?
If so and there is connectivity - can you start sniffer (i.e. wireshark) on
Win7, configure it to listen on an active interface and gather data?
BR
ŁS

2013/2/26 Héctor Herrera <hherreraa at gmail.com>

> Well, I assume the trouble here is Win7. But, why? That's my question. I
> don't understand why Win7 isn't asking the DHCP server for an IP address.
> (Or maybe is the DHCP server the trouble? I don't really understand it,
> that's why isn't so clear my question)
>
> I'm trying to collect information in the network between my Win7 test
> machine and the server. The network is dead, I haven't received any
> information. And I'm renewing all the connections in Win7 (ipconfig /renew).
>
> BTW, I tried with both ethernet interfaces for the IP information (I
> configured the server on eth0 and eth1), without good results. I dunno what
> else can I do. Do you have any ideas?
>
>
> 2013/2/26 Oskar Berggren <oskar.berggren at gmail.com>
>
>> You started with "unable to send IP addresses to Win7" but with your
>> latest info it seems like the proper question is the reverse: "why
>> can't win7 send DHCP requests to my DHCP server?".
>>
>> Is Win7 configured to use DHCP?
>> If you use wireshark or tcpdump on Win7 and on the DHCP server, do you
>> see any DHCPDISCOVER from the Win7 machine?
>>
>> /Oskar
>>
>>
>> 2013/2/26 Héctor Herrera <hherreraa at gmail.com>:
>> > That´s the trouble, I haven't any information about Windows 7 asking
>> for an
>> > IP to my server.
>> >
>> > This is my dhcpd.conf. It's really basic because I want, first of all,
>> the
>> > service working:
>> >
>> > option domain-name "galatea.cl";
>> > option domain-name-servers 8.8.8.8, 200.62.222.222;
>> > option routers 192.168.1.1;
>> > default-lease-time 600;
>> > max-lease-time 7200;
>> > server-identifier 192.168.1.1;
>> > #ddns-update-style none;
>> > authoritative;
>> > log-facility local7;
>> >
>> > subnet 192.168.1.0 netmask 255.255.255.0 {
>> >         range 192.168.1.15 192.168.1.100;
>> > }
>> >
>> > I have some rules on iptables too:
>> >
>> > Generated by iptables-save v1.4.8 on Tue Feb 26 11:48:15 2013
>> > *nat
>> > :PREROUTING ACCEPT [4:312]
>> > :POSTROUTING ACCEPT [0:0]
>> > :OUTPUT ACCEPT [0:0]
>> > -A PREROUTING -s 192.168.0.0/24 -p tcp -m tcp --dport 80 -j REDIRECT
>> > --to-ports 3128
>> > -A PREROUTING -s 192.168.1.0/24 -p tcp -m tcp --dport 80 -j REDIRECT
>> > --to-ports 3128
>> > COMMIT
>> > # Completed on Tue Feb 26 11:48:15 2013
>> > # Generated by iptables-save v1.4.8 on Tue Feb 26 11:48:15 2013
>> > *filter
>> > :INPUT ACCEPT [27:2066]
>> > :FORWARD ACCEPT [0:0]
>> > :OUTPUT ACCEPT [13:1324]
>> > -A INPUT -i eth1 -p tcp -m state --state NEW -m tcp --dport 3128 -j
>> ACCEPT
>> > COMMIT
>> > # Completed on Tue Feb 26 11:48:15 2013
>> >
>> > I don't have any other information. As I said, the logs doesn't show me
>> > information about Win7. Oh, and Win7 hasn't active the Firewall Service.
>> >
>> >
>> > 2013/2/26 Steven Carr <sjcarr at gmail.com>
>> >>
>> >> Can you see the requests coming in to the DHCP server from the Windows
>> >> 7 client? and can you also perform a packet capture on the Windows 7
>> >> machine to see if it is receiving the responses from the DHCP server.
>> >> If you can upload the logs (sanitised) and the packet capture then I
>> >> can have a look.
>> >>
>> >> Steve
>> >>
>> >>
>> >> On 26 February 2013 13:10, Héctor Herrera <hherreraa at gmail.com> wrote:
>> >> > Greetings to all!
>> >> >
>> >> > I have an issue with DHCP and Win7. I'm working with Debian 6.0.6,
>> and
>> >> > I''m
>> >> > trying to mount a DHCP server on it (DHCP ver. 4.1.1). But I'm
>> unable to
>> >> > send IP addresses to Win7 machines. I tried with other OS
>> (specifically
>> >> > Arch
>> >> > Linux and WinXP), and the server sends IP addresses to them, but with
>> >> > Win7... I cannot
>> >> >
>> >> > May someone knows how to handle it? And if it so, can someone send
>> some
>> >> > information?
>> >> >
>> >> > Thanks to all!
>> >> >
>> >> > P.D: Sorry about the English, it isn't my first language :P
>> >> >
>> >> > --
>> >> > Saludos
>> >> >
>> >> > Héctor Herrera Anabalón
>> >> > Egresado ICCI UNAP
>> >> > Servicio Arquitectura Galatea - Oficina Técnica
>> http://www.galatea.cl
>> >> > Miembro USoLIX Victoria
>> >> > Registered User #548600 (LinuxCounter.net)
>> >> >
>> >> > _______________________________________________
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>> >
>> >
>> >
>> >
>> > --
>> > Saludos
>> >
>> > Héctor Herrera Anabalón
>> > Egresado ICCI UNAP
>> > Servicio Arquitectura Galatea - Oficina Técnica http://www.galatea.cl
>> > Miembro USoLIX Victoria
>> > Registered User #548600 (LinuxCounter.net)
>> >
>> > _______________________________________________
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>
>
>
> --
> Saludos
>
> *Héctor Herrera Anabalón*
> Egresado ICCI UNAP
> Servicio Arquitectura Galatea - Oficina Técnica http://www.galatea.cl
> Miembro USoLIX Victoria
> Registered User #548600 (LinuxCounter.net)
>
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-- 

"Omnes homines natura scire desiderant"
                                           Aristotelis
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