On Fri, Mar 12, 2010 at 6:26 PM, Raja Subramanian <[email protected]> wrote: > On Fri, Mar 12, 2010 at 3:20 PM, Arun Khan <[email protected]> wrote: >> There is *no* client side ISP router - just a modem for media conversion > > Without a client side router, you can't setup any VLANs. Any VLAN > config needs to be done at the ISP end as your modem is just an L2 bridge. > > Btw, which ISP are you using here?
Tulip > > >> This would imply a switch supporting VLAN right? If yes, the client >> does *not* have the infra. > > A switch is not essential, you can use VLAN trunks between your > device and the local router. But as mentioned, you cannot run VLAN > trunks to a modem, so VLANs do not apply to you and this discussion > is just academic interest. > After I posted, google'd a bit more and arrived at the same conclusion. Thanks for the clarification nonetheless. >> The appliance is an Intel Atom DG945GCLF based nettop with 2 NICs (one >> for LAN and one for WAN) >> Would appreciate some pointers If you are suggesting to do VLAN in >> Linux on the WAN NIC. > > See vconfig/ifconfig man pages. There's plenty of docs online, here's one: > http://nixcraft.com/networking-firewalls-security/10447-linux-vlan-configuration.html Ditto as above. Looked at above link after google search :) > Not all NICs support VLAN interfaces, the VLAN tags add 4 bytes to the > ethernet > frame so the NIC must support 1512 bytes MTU. I have the same Intel Atom > board > at home and it runs tagged VLANs without any issues, so you'll have no > problems. That is good to know. VLAN tag does not apply to my specific setup confirmed by ISP and yourself. The Atom board is an excellent platform for small foot print appliance w/o the price tag. Have you been able to lay your hands on the DG945GCFL2 (Atom 930)? It has 2 multi-threaded cores (4 threads total). I have been unable to get any in the Mumbai channels. Thanks again for your inputs. -- Arun Khan _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
