[Dnsmasq-discuss] DHCP for multiple address not in the eth0

Santiago Zarate santiago at zarate.net.ve
Wed Feb 3 05:24:04 GMT 2010


Have you checked the routing tables?... also... any of the client has
ever got a ip from the dhcp server, and can you ping back other
clients + server?
2010/2/3 Kiswono Prayogo <kiswono at gmail.com>:
> hi, i have tried it.. but how do i debug it? what i mean is how can i
> know if there are any DHCP request packet sent to my box or from my
> box to the client..
>
> ***
> i run dnsmasq with this command instead of running it as service:
>
> sudo dnsmasq -d --log-dhcp
>
> and got these message:
>
> dnsmasq: started, version 2.47 cachesize 8192
> dnsmasq: compile time options: IPv6 GNU-getopt DBus I18N TFTP
> dnsmasq: DHCP, IP range 10.10.6.10 -- 10.10.6.254, lease time 12h
> dnsmasq: DHCP, IP range 10.10.5.10 -- 10.10.5.254, lease time 12h
> dnsmasq: DHCP, IP range 10.10.3.10 -- 10.10.3.254, lease time 12h
> dnsmasq: DHCP, IP range 10.10.2.10 -- 10.10.2.254, lease time 12h
> dnsmasq: DHCP, IP range 10.10.1.10 -- 10.10.1.254, lease time 12h
> dnsmasq: reading /etc/resolv.conf
> dnsmasq: using nameserver 208.67.220.220#53
> dnsmasq: using nameserver 208.67.222.222#53
> dnsmasq: read /etc/hosts - 14966 addresses
> [no more message, even if the client send DHCP requests]
>
> ***
> these are my configuration (my box (dhcp, gateway and dns server) ip
> address is 192.168.1.254):
>
> dhcp-range=WAP1,10.10.1.10,10.10.1.254,255.255.255.0,12h
> dhcp-option=WAP1,3,10.10.1.1
> dhcp-range=WAP2,10.10.2.10,10.10.2.254,255.255.255.0,12h
> dhcp-option=WAP2,3,10.10.2.1
> dhcp-range=WAP3,10.10.3.10,10.10.3.254,255.255.255.0,12h
> dhcp-option=WAP3,3,10.10.3.1
> dhcp-range=WAP5,10.10.5.10,10.10.5.254,255.255.255.0,12h
> dhcp-option=WAP5,3,10.10.5.1
> dhcp-range=WAP6,10.10.6.10,10.10.6.254,255.255.255.0,12h
> dhcp-option=WAP6,3,10.10.6.1
> dhcp-option=6,192.168.1.254
>
> ***
> the logical topology:
>
> client -- L3switch1 (forwarding bootp/dhcp to 192.168.1.254) -- my box
> (192.168.1.254)
>
> L3switch1: set forwarding-options helpers bootp server 192.168.1.254
> i.e. if the client got IP 10.10.2.33 then, the gateway is 10.10.2.1,
> and the dns server is 192.168.1.254
>
> ***
> the physical topology:
>
> client -- access point -- L3switch1 -- L3switch2 -- my box
> (192.168.1.254) -- internet
>
> --
> Regards,
> Kiswono P
> GB
>
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