Help!

My network is set up like this:

My gateway computer is connected to the internet through ppp0. I then use Firehol to act as a firewall and to route any requests from my ethernet device to the internet. I also run BIND and ISC's DHCP server in order to do Dynamic DNS. The ethernet port is connected to a 5-port hub, and the other computers in the network connect to that.

The problem is that the ping on my gateway to, for example, Google is approx. 200ms, which is fine for dialup, but the computers on the network ping 3000ms which is *not fine*. Where is the bottleneck? Is my system to slow to run Bind and DHCPD (2.0 GHz, 512 MB RAM)? Or maybe I should replace the hub with a switch? Or what? Why is my network so slow!?! Any help is appreciated, since I have no hair left.

3000ms constantly even when there is no other traffic on the internet link or LAN?

Yep, it is that bad. any ideas on what could be causing this? Maybe Bind and DHCP are too CPU-intensive? I'm planning to replace them with dnsmasq, but I appreciate any advice regardless.

Bind and dhcpd ran fine for me on a Pentium 200 MMX so your 2 GHz system is definitely not a problem. Are you running a traffic shaper or any kind of bandwidth management on the gateway? Is it possible you have virus traffic on the dialup link? Other than that, nothing comes to mind.

You could try running tcpdump -i ppp0 on the gateway and see if the echo requests from your LAN machines are delayed going out or if the echo replies are delayed coming back in.

Are there any !H entries in a traceroute output, like in this post: http://www.linuxquestions.org/questi...hreadid=368101