Hi Petr, Thank you for your response. I am actually looking for a way to forward packets to a specific interface. The DNS servers on all these interfaces are the same, so I can't use the method you mentioned in your response.
I am looking for something similar to the `ping -I interface` option [1] that sets the source IP address (or interface) for the ping packets. Thank you, -H [1] https://linux.die.net/man/8/ping On 9/23/20 2:47 PM, Petr Menšík wrote: > Hi, > > I doubt there is simple way to forward to "interface". DNS queries needs > target IP to forward to. You would need > dnsmasq ... --no-resolv --server=<ethX forwarder IP> > > I just guess you want to use DNS server configured by DHCP on given > ethernet interface. I doubt it is possible to integrate directly into > dnsmasq. It is not DHCP client, but DHCP server. You would have to find > a way to obtain DNS settings for given interface and prepare > configuration snippet for dnsmasq. > > With fixed IP addresses, it would be much easier :), just use different > --server on each instance. > > Cheers, > Petr > > On 9/23/20 8:13 PM, Hooman wrote: >> Hi, >> >> I am using `hostapd` to setup WiFi hotspot networks on my Ubuntu 18.04. >> I am using [this guide][1] to setup multiple SSIDs on my WiFi interface. >> And to enable DHCP on the hotspot networks, I use `dnsmasq`. >> >> I run a separate instance of `dnsmasq` for each SSID. Now, I have >> multiple Ethernet interfaces available on this computer and I want each >> `dnsmasq` instance to forward the DNS requests it receives on a >> different Ethernet interface. >> >> Is there an easy way to do this? In other words, is there a way to tell >> `dnsmasq` which Ethernet interface to use for forwarding DNS queries? I >> know that in theory I can use network namespaces to do this, but I'm >> looking for an easier way. >> >> Thank you! >> >> -H >> >> >> [1]: http://wiki.stocksy.co.uk/wiki/Multiple_SSIDs_with_hostapd >> >> >> _______________________________________________ >> Dnsmasq-discuss mailing list >> Dnsmasq-discuss@lists.thekelleys.org.uk >> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss >> _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
