>1) Client (10.3.0.11) sends DNS request. > [ src == 10.3.0.11:<high_port>, dst == 12.159.185.248:53 ] >2) Router redirects traffic. > [ src == 10.3.0.11:<high_port>, dst == 10.3.0.10:53 ] >3) Linux server receives packet. > [ src == 10.3.0.11:<high_port>, dst == 10.3.0.10:53 ] >4) Linux server returns packet to sender. > [ src == 10.3.0.10:53, dst == 10.3.0.11:<high_port> ] >5) Client receives return packet. > [ src == 10.3.0.10:53, dst == 10.3.0.11:<high_port> ] When something internally makes a DNS request, it works fine, and likewise, the packets come in externally to the box. It's only when my linux box tries to respond (internal out) to the request. I know for sure the request is coming in from 12.159.189.126, to my internal linux box, because I see this in named.log Nov 27 20:32:36.369 queries: info: client 12.159.189.126#35332: query: bl.blueshore.net IN A However, from 12.159.189.126's point of view, it just times out, because it never receives the response from my box. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list