My internet connection is via a mobile broadband service.
My laptop is dual boot VISTA & F10 (patched)
When I connect with a VISTA Windows boot, I see the result of the connection via ipconfig /all and note what it says. When I reboot to F10 and get a connection, the DNS is always incorrect. It is using the WINS servers instead of the DNS servers.
Here is a sample from /var/log/messages
Mar 11 07:48:48 billlaptop pppd[12475]: Plugin /usr/lib64/pppd/2.4.4/nm-pppd-plugin.so loaded.
Mar 11 07:48:48 billlaptop pppd[12475]: pppd 2.4.4 started by root, uid 0
Mar 11 07:48:48 billlaptop pppd[12475]: Using interface ppp0
Mar 11 07:48:48 billlaptop pppd[12475]: Connect: ppp0 <--> /dev/ttyUSB0
Mar 11 07:48:48 billlaptop NetworkManager: <info> (ttyUSB0): device state change: 5 -> 6
Mar 11 07:48:48 billlaptop pppd[12475]: CHAP authentication succeeded
Mar 11 07:48:48 billlaptop pppd[12475]: CHAP authentication succeeded
Mar 11 07:48:48 billlaptop NetworkManager: <info> (ttyUSB0): device state change: 6 -> 7
Mar 11 07:48:55 billlaptop pppd[12475]: Could not determine remote IP address: defaulting to 10.64.64.64
Mar 11 07:48:55 billlaptop pppd[12475]: local IP address 10.247.196.216
Mar 11 07:48:55 billlaptop pppd[12475]: remote IP address 10.64.64.64
Mar 11 07:48:55 billlaptop pppd[12475]: primary DNS address 10.11.12.13
Mar 11 07:48:55 billlaptop pppd[12475]: secondary DNS address 10.11.12.14
Under Windows, the DNS info specifies the real DNS servers. Under F10 I always get the ISP's WINs servers instead. When I manually fix /etc/resolv.conf everything works as expected, but the ISP changes the DNS settings frequently, so periodically I have to boot VISTA to see what they are today and then reboot to F10 and patch resolv.conf . I had the same issue with F9.
How do I perform a test DHCP request to see what is being sent back. I prefer not to use tcpdump as its too messy.