[Dnsmasq-discuss] Issues with multiple subnets on dnsmasq

Simon Kelley simon at thekelleys.org.uk
Tue Sep 4 17:00:43 BST 2012


On 03/09/12 18:02, Ryan Chapman wrote:
> On the host that pulls a 172.16.48 address, try a ping of 172.16.48.4
> and then check the arp table to make sure it resolved to a hardware
> address.  If not, tcpdump arp traffic.
> 
> It might be interesting to see what an ifconfig, "route -n" and "arp -a"
> look like on the 172.16.48 host…
> 
> 
> On Sep 3, 2012, at 7:29 AM, subhranshu dwivedi
> <subhranshu.dwivedi at erminsystems.com
> <mailto:subhranshu.dwivedi at erminsystems.com>> wrote:
> 
>> Hi All,
>>
>> I have Untangle with DNS masq setup at my end,
>>
>> With interface:
>>
>> External
>> eth0      Link encap:Ethernet  HWaddr 00:04:23:c7:52:63 
>>           inet addr:172.16.57.10  Bcast:172.16.57.255  Mask:255.255.255.0
>>
>> INTERNAL
>> eth1      Link encap:Ethernet  HWaddr 00:04:23:c7:52:62 
>>           inet addr:172.16.48.4  Bcast:172.16.51.255  Mask:255.255.252.0
>> DMZ
>> eth2      Link encap:Ethernet  HWaddr 00:1b:21:0e:1f:46 
>>           inet addr:172.16.48.110  Bcast:172.16.49.255  Mask:255.255.254.0

Don't these two subnets overlap? That would be enough to cause strange
effects.


Simon.






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