[Dnsmasq-discuss] two DNSMASQ server online
richardvoigt at gmail.com
richardvoigt at gmail.com
Wed Apr 2 07:35:48 BST 2008
On Wed, Apr 2, 2008 at 1:54 AM, Philippe Faure <philippe at faure.ca> wrote:
> I have a unique setup. I have two private networks connected by a VPN
> connection. Both private networks have DNSMASQ running (using DNS and
> DHCP functionality). I am finding that a client from network 1 will
> receive IP address from DHCP server on network 2.
>
> Besides ignoring MAC addresss from the other network, which makes it
> difficult to keep up to date with wireless clients, that keep moving
> around, is there a way to stop dhcp replies coming from the other
> network?
Of course you can use packet filtering to drop all UDP port 67/68
traffic to the VPN interface.
>
> To add a level complexity. The DNS server built into dnsmasq need to
> be able to reference each other, since clients on network 1 need to
> know about clients on network 2. IP addresses have been assigned to
> each network, so they don't overlap.
>
> I don't know if this is something that dnsmasq can handle or if
> someone else has come across this situation, and found a way to block
> only DHCP requests to be transferred over the VPN connection?
>
> Thank you
>
> Philippe
>
>
>
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