[Dnsmasq-discuss] Issues with multiple subnets on dnsmasq

subhranshu dwivedi subhranshu.dwivedi at erminsystems.com
Mon Sep 3 14:29:32 BST 2012


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

Extra ones:
eth3      Link encap:Ethernet  HWaddr fc:75:16:8e:57:2b
          inet addr:172.16.52.20  Bcast:172.16.53.255  Mask:255.255.254.0

eth4      Link encap:Ethernet  HWaddr fc:75:16:8e:57:42
          inet addr:172.16.56.2  Bcast:172.16.56.255  Mask:255.255.255.0

Now my dnsmasq.conf,

localise-queries
server=202.56.224.135 # uplink.1
server=59.144.127.16 # uplink.1
expand-hosts
addn-hosts=/etc/untangle-net-alpaca/dnsmasq-hosts
no-hosts
domain=bpl.netlink.com
interface=eth1
interface=eth3
interface=eth4
dhcp-range=eth1,172.16.49.101,172.16.49.254,14400
dhcp-range=eth1,172.16.50.1,172.16.50.254,14400
dhcp-range=eth1,172.16.51.101,172.16.51.254,14400
dhcp-range=eth4,172.16.56.20,172.16.56.254,14400
dhcp-range=eth3,172.16.52.21,172.16.53.254,14400
dhcp-option=eth1,3,172.16.48.1
dhcp-option=eth4,3,172.16.56.1
dhcp-option=eth3,3,172.16.52.1
dhcp-option=eth1,1,255.255.252.0
dhcp-option=eth4,1,255.255.255.0
dhcp-option=eth3,1,255.255.254.0
dhcp-option=eth1,6,172.16.48.146,172.16.48.147
dhcp-option=eth4,6,172.16.48.146,172.16.48.147
dhcp-option=eth3,6,172.16.52.3,172.16.48.146
dhcp-lease-max=500
dhcp-host=00:13:02:a9:8b:57,172.16.48.106,24h
dhcp-host=94:39:e5:e6:a7:cf,172.16.48.208,24h


Now the issue is that i when we assign the ips with dnsmasq running with
multiple subnets as mentioned we face issues with range 49:
dhcp-range=eth1,172.16.49.101,172.16.49.254,14400
dhcp-range=eth1,172.16.50.1,172.16.50.254,14400
dhcp-range=eth1,172.16.51.101,172.16.51.254,14400

it assigns the 50 and 51 series fine with internet access but when assigns
49 series ip cant ping the untangles internal ip:172.16.48.4
and hence no internet for 49 series

Please suggest what can we do to resolve this.

-- 
Best Regards,

* *

*Subhranshu Dwivedi***

Technology Support

*Ermin Systems*

subhranshu.dwivedi@**erminsystems.com <subhranshu.dwivedi at erminsystems.com>



------------------------------

*Our Expertise: **Consulting Services | Data Centre Solutions | Storage
Solutions | Network Integration | IT Infrastructure Optimization | Managed
Services | Software Licensing | Audio-Visual Integration| Database
Migration | ERP Solutions| IVR Services | Virtualization |***

This email and any attachments are sent in confidence, subject to
applicable legal privilege and upon the basis that the recipient will
conduct appropriate virus checks. If you receive this email in error,
please telephone us upon receipt: you are strictly prohibited from using,
copying or disseminating it or any information contained in it, save to the
intended recipient. Internet communications are not secure and Ermin
Systems Pvt. Ltd. is not responsible for their abuse by third parties, nor
for any alteration or corruption in transmission, nor for any damage or
loss caused by any virus or other defects.

*P** **Please consider the environment before printing this e-mail.*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/attachments/20120903/d178213e/attachment.html>


More information about the Dnsmasq-discuss mailing list