Quoting Glen Turner <[EMAIL PROTECTED]>: > On Sun, 2007-09-23 at 21:30 +1000, Minh Van Le wrote: > > > My idea is to install x2 quad port ethernet NICs in a Red Hat > server to > > compose the topology below. > > The topology is insane. Don't worry about using all of the > ports on the ADSL router -- it's only got 4 ports because > cheap ethernet switch ASICs come with 4 ports and a uplink.
Yeah the topology seems unnecessarily complex ... But I get additional flexibility with network segregation and experiments with subnetting. > Without a great deal of hassle you'll end up with all of > your traffic going down one of the four Server-Router links, > since all those links will necessarily be in the same subnet. > > To achieve what you want to do: > - configure the ADSL router as a ADSL bridge. Wow I didn't even think about turning on bridge mode :) Probably because I prefer not directly exposing a whole operating system to the internet even if it's hardened & firewalled. Atleast with the ADSL modem any software exposure is limited to firmware and all it does is NAT, whereas hooking up a Linux PC to a modem in bridge mode sounds a lot riskier to me. [...] > - configure fprobe-ulog (or similar) to generate NetFlow (IP > traffic) > records from NAT > - configure flow-tools to collect and report flow information. > - configure ntop is you want something more interactive. I plan on using pmacct (Promiscuous mode IP Accounting) with Cacti or something. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
