Re: [lwip-users] RE: DNS. Howto Discover DNS Server?

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Nick Thomas wrote:
> I now see the I can discover the DNS servers. There is some code in
> dhcp_handle_ack() which gives me chance to save upto two DNS server IP
> address returned.
> Which might give me a DNS IP address of 62.31.144.39 (for example). But, my
> local IP address is 192.168.0.7.
> Now when it comes to use this DNS to resolve google.co.uk (for example) I
> notice that the ip_route function cannot find a network interface because my
> netmask is blocking access to the DNS server!
>   
Outgoing IP traffic should be sent to the default gateway if it is for a 
different network (e.g. google.co.uk in your private network). Somehow 
this default routing didn't work for you. Did you set one netif as the 
default netif (using netif_set_default())? And if so, does this netif 
have a gateway set? (I don't really know how this is done with DHCP, but 
it should be handled there, I think.)

Simon