[Dnsmasq-discuss] New setup. DNS OK, DHCP is silent

Lovelady, Dennis E. dlovelady1 at dtcc.com
Sat Nov 24 17:35:04 GMT 2012


Thanks, Peter.

I have:
Disabled iptables
Run iptables -F
Renamed iptables and all the associated symlinks
Rebooted. 

So I think iptables is out of the way.  (There are innumerable firewalls between you and that server; it can do without iptables for now.  And I can quickly restore.)

Still no joy.  Here's my netstat -nap output.  It's not quite like yours.  What might that mean?

netstat -nap | grep dnsmasq
tcp        0      0 0.0.0.0:53                  0.0.0.0:*                   LISTEN      1599/dnsmasq
udp        0      0 0.0.0.0:53                  0.0.0.0:*                               1599/dnsmasq
unix  2      [ ]         DGRAM                    4426   1599/dnsmasq

I appreciate the guidance.


-----Original Message-----
From: Peter Schiefer [mailto:peter at fli4l.de] 
Sent: Saturday, November 24, 2012 10:07 AM
To: dnsmasq-discuss at lists.thekelleys.org.uk
Subject: Re: [Dnsmasq-discuss] New setup. DNS OK, DHCP is silent

Hi Dennis,

Am 24.11.2012 15:30, schrieb Lovelady, Dennis E.:
> INPUT-INTERNAL  all  --  192.168.158.0/24     anywhere
> ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED
> ACCEPT     icmp --  anywhere             anywhere            icmp echo-request
> ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:http
> ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:https
> ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh
> REJECT     tcp  --  anywhere             anywhere            tcp dpt:auth reject-with icmp-admin-prohibited
> DROP       all  --  anywhere             anywhere

I Miss a rule like

ACCEPT   udp  --  anywhere             anywhere            udp dpt:dhcp

in your setup

dhcp-requests uses the udp-protokol and the port 67

See the following output on my fli4l-router-machine (dnsmasq is
configured as dns and dhcp-server)

netstat -nap | grep dnsmasq
tcp        0      0 0.0.0.0:53              0.0.0.0:*
LISTEN      3510/dnsmasq
udp        0      0 0.0.0.0:53              0.0.0.0:*
        3510/dnsmasq
udp        0      0 0.0.0.0:67              0.0.0.0:*
        3510/dnsmasq


Cheers,

Peter

-- 
mailto:peter at fli4l.de [fli4l-/eisfair-Team]


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