Can't resolve network names with PPP/DUN connections

[Mark A. Miller]

I have an Asus Z71A laptop running FC5 and WinXP.  I don't have any
problems with networking when I use Ethernet or 802.11g in either OS.

I am having problems with name resolution when I use my cell phone as a
networking device, but only when I boot into FC6.  Using the cell phone
as a modem works well in Windows, and even with the SLAX live CD
distro.  But in my Fedora environment, name resolution is so slow that
I can only ping/ssh/web browse to numerical addresses, for all
practical purposes.

I am using software called USB Modem, from Mobile Stream, on my phone. 
I have followed their suggestions (see below), except I couldn't find a
/etc/ppp/resolve.conf, so I do this instead:

# cat /etc/ppp/resolve.conf > /etc/resolve.conf

Can anyone suggest how I can trouble shoot this situation?

Thanks, 
Mark

---  USB Modem readme   ---

This is a quick USB Modem for Linux usage guide.

See the USBModem_UG.pdf for the full documentation.



[Requirements]

Linux distribution with CDC ACM class driver (either compiled in the

kernel or as a module named cdc-acm.ko) and a reasonably recent pppd

version.



These instructions were tested on a SLAX Live CD distribution and

should work on any modern distribution as well.





[Installation and Configuration]

Obtain the following connection parameters from the mobile operator:

user name, password. For GSM networks the APN is also required.



Copy either ppp-script-edge-template (for GSM GPRS/EDGE networks)

or ppp-script-evdo-template (for CDMA 1xRTT or EVDO networks) file

from the USB Modem distribution to /etc/ppp/peers/ppp-script-treo

(you may need to create the path by hand), replacing the USERNAME

and APN (for GSM only) words with the correct values.



Also add the user name and password line from the pap-secrets-template

to the /etc/ppp/pap-secrets file, replacing the USERNAME and PASSWORD

words with the correct values.



See the mts folder for the complete example scripts tuned for the

MTS GSM operator.





[Connecting the Treo to Linux PC]

Connect Treo with Linux PC using a USB cable and enable the USB Modem

mode. Linux will recognize the USB device and load the CDC ACM class

driver.



Type as root:



	bash-2.05# pppd /dev/ttyACM0 call ppp-script-treo



It will print how the connection setup is performed. If it was

successful a new network interface will be created (usually ppp0).

The only thing left is to copy the content of /etc/ppp/resolv.conf

to system-wide /etc/resolv.conf for proper name resolution. E.g.:



	bash-2.05# cat /etc/ppp/resolve.conf > /etc/resolve.conf



The connection setup is done.



To disconnect, kill the pppd process:



	bash-2.05# kill <pppd_process_pid>


---   USB Modem PPP script   ---

921600
connect '/usr/sbin/chat -s -v  "" "AT&F0E0V1S0=0"  OK ATD#777  CONNECT'
debug
updetach
crtscts
noipdefault
novj
lcp-echo-failure 0
nobsdcomp
novjccomp
nopcomp
noaccomp
user USERNAME
modem
usepeerdns
defaultroute
connect-delay 5000


---   ---   ---   ---   ---   ---   ---   ---

Mark A. Miller


 
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