[Dnsmasq-discuss] dns and cisco router in between

Rene Stoutjesdijk r.stoutjesdijk at gmail.com
Sun Jan 11 18:32:17 GMT 2015


Goodday,
unitll now i'm using dnsmasq where the clients are on the same interface
(and subnet) as the DHCP server is.

In my upcoming setup i'll need to put a cisco router between the clients
and the DHCP server. I do know that i've to configure the ip helper ip
address at the cisco config, but do i also have to make changes towards the
configuration at the DHCPserver part.
My current config looks like:

dhcp-range=net:CUST14,10.64.1.0,10.64.1.0,255.192.0.0,1h
dhcp-option=CUST14,option:router,10.127.255.254
dhcp-circuitid=CUST14,CUST14
dhcp-range=net:CUST15,10.64.1.10,10.64.1.13,255.192.0.0,1h
dhcp-option=CUST15,option:router,10.127.255.254
dhcp-circuitid=CUST15,CUST15
dhcp-range=net:CUST16,10.64.1.16,10.64.1.16,255.192.0.0,1h
dhcp-option=CUST16,option:router,10.127.255.254
dhcp-circuitid=CUST16,CUST16
dhcp-leasefile=/var/tmp/dnsmasq.leases
log-dhcp

currently the dhcp server is running at ip address 10.127.255.254 but this
will be migrated towards the cisco router. The dhcp server will get
10.10.1.2 255.255.255.252 and the 10.10.1.1 is at the router (which is also
having the ip address 10.127.255.254.


thx in advance for your response.
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