On 2013-03-15 14:14 (GMT-0400) James Knott composed:
Felix Miata wrote:
Is your server (default) gateway for STB?
No. Only gateway here I know of is the router.
How are you watching the traffic when connecting to the MIT NTP server? If you're using a switch, you won't see anything between the STB and the NTP server. To watch that traffic you'll need to use a hub or a managed switch with a mirror port, unless you have an Ethernet tap handy.
The router connected to the modem is a DIR-615. Normally only the modem, a printer and a DGS-2208 switch are plugged into its ethernet ports. The server is plugged into the DGS-2208. The STB is plugged into a TEG-S80g switch, which is also plugged into the DGS-2208. Moving the STB and the server straight to the router didn't change anything except slowing I/O to/from the server down from gigabit to 10/100, and shutting off internet access to equipment plugged into the TEG-S80g. I don't see anything about mirror port or managing on the feature lists on the switches' boxes.
I keep an old 10 Mb hub handy, just for such monitoring. It's supposedly possible to make a passive tap, but I've never tried it.
I looked. All I have are switches; no hubs, no tap, and no puters with more than one installed NIC.
On my home network, my router/firewall is an old computer running Linux. It has Wireshark installed, so I can ssh to it and run Wireshark to monitor the traffic passing through it.
AFAIK, an old puter functioning only as firewall/router consumes a whole lot more dead dinosaurs than the dedicated internet router I use. -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org