[gPXE] Not able to access Internet with sanboot

[Stefan Hajnoczi]

On Wed, Feb 17, 2010 at 6:29 PM, Andy Chen <andychen_ca at hotmail.com> wrote:
> I boot FC12 from sanboot with gpxe 1.0.0.
> It works perfect except seems to me that the network is occupied by iscsi
> and not share with FireFox brower cause it not able to access internet.
> Anybody has experienced this?
> Appreciate your help in advance.

This is most likely not an iSCSI issue and at this stage of execution
gPXE is no longer being used.  This is a Linux network configuration
issue.

iSCSI uses a TCP connection.  So in order for iSCSI to work, part of
your network configuration must be correct.  Perhaps DNS is not set up
and Firefox isn't able to look up of domain names?

You can test this by trying to ping google.com to see if ping resolves
the IP address:
$ ping google.com
PING google.com (209.85.227.106) 56(84) bytes of data.
64 bytes from wy-in-f106.1e100.net (209.85.227.106): icmp_seq=1 ttl=54
time=32.1 ms

The "google.com (209.85.227.106)" output shows me that ping was able
to resolve "google.com" to an IP address.  If ping cannot look up
"google.com" then DNS is not set up.

A few commands to check the network configuration:
/sbin/ifconfig
/sbin/route -n
cat /etc/resolv.conf
iptables -L -n   (needs to be run as root, e.g. use sudo)

If you post the output of these commands we should have a clearer
picture of what is missing.

Stefan