On Tuesday 05 May 2009, Rony wrote: > Kenneth Gonsalves wrote: > > On Monday 04 May 2009 11:38:33 Ramkumar R wrote: > >> * Switching requires that you run a daemon that keeps pinging the > >> ISP's gateway to check if the link is up. When the link goes down, > >> it should automatically take the current ethernet interface down > >> and bring up the other interface. I'm not sure it's worth the > >> trouble. > > > > my experience with bsnl/airtel is that even if you can ping the > > gateway, the line may still be down further up the chain. You need > > to be able to ping something like google.com through the relevant > > ethernet card. > > True. Mostly it is the DNS servers that don't come up properly. >
This can be solved by using opendns or installing bind and running it as a caching NS; unless there are ISPs that block recursive queries going out of your network to the root servers/TLDs and the domain SOAs. MTNL and AirTel do not; Reliance/TataIndicom/BSNL ? -- Arun Khan -- http://mm.glug-bom.org/mailman/listinfo/linuxers
