I have two machines : A with DHCP server, an Ethernet card and a Modem. It is connected to the ISP with the modem. Machine B is a laptop, with an Ethernet card. I connect B to A with a crosswired RJ45 cable, and its IP address is given by the DHCP server from A.
Strangely, when B is connected to A, I can connect to the ISP, but cannot navigate on Internet. The DNS seems to be blocked. I have to disconnect B to be able to recall my ISP and the DNS works. As soon as I reconnect B, I cannot reach any web page anymore with A. What's wrong in the configuration ?
