[ale] can anyone explain this?

Vaidhy Mayilrangam vaidhy at loonys.net
Sat Dec 15 00:08:09 EST 2001


Are you running DNS on your linux gateway ??

Vaidhy

On Fri, Dec 14, 2001 at 11:22:00PM -0500, Christopher Bergeron wrote:
> I have a few boxen on my internal home network (192.168.0.x); among them are
> a few linux boxes and 1 lowly win 2k box.
> 
> Here's the inconceiveable part:  My work domain:  bass-associates.com just
> recently changed Network Solutions DNS entries to point at _our_ work DNS
> server.  Now, when I try to ping my work domain from my win box at
> home(which gateways out of a linux box) I get this:
> ----------------------------------------------------------------------------
> ---------
> C:\>time
> The current time is: 23:11:26.29
> Enter the new time:
> 
> C:\>ping www.bass-associates.com
> 
> Pinging www.bass-associates.com [12.108.240.165] with 32 bytes of data:
> 
> Reply from 12.108.240.165: bytes=32 time=40ms TTL=241
> Reply from 12.108.240.165: bytes=32 time=30ms TTL=241
> Reply from 12.108.240.165: bytes=32 time=30ms TTL=241
> Reply from 12.108.240.165: bytes=32 time=30ms TTL=241
> 
> Ping statistics for 12.108.240.165:
>     Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
> Approximate round trip times in milli-seconds:
>     Minimum = 30ms, Maximum =  40ms, Average =  32ms
> ----------------------------------------------------------------------------
> ----------
> Yet from my linux box (the gateway for the winbox), I get this:
> 
> [root at proto1 /]# date; ping www.bass-associates.com -c 3
> Fri Dec 14 23:01:30 EST 2001
> PING www.bass-associates.com (12.108.240.165) from 24.98.82.217 : 56(84)
> bytes of data.
> 
> --- www.bass-associates.com ping statistics ---
> 3 packets transmitted, 1 packets received, 66% packet loss
> round-trip min/avg/max/mdev = 74.240/74.240/74.240/0.000 ms
> ----------------------------------------------------------------------------
> ------------
> 
> The linux box(gateway) is getting 66% packet loss, and the win box isn't!!!
> DoH!!!
> Has the win box somehow gotten more accurate(/recent) DNS info?  The linux
> box (gateway) has it's clock set daily to the National Observatory / Naval
> Atomic Clock so it's the accurate one.   I use the win2k box to browse, but
> I use the linux for everything else [pron: important].  Could the winbox
> have gotten DNS info from sites it browses to or something?  When I ping by
> IP address, I get fast response time from _both_ machines.
> 
> This whole thing has me absolutely befuddled...
> Does anyone have any clues/ideas/suggestions about what is going on?
> 
> Much respect in advance!
> CB
> 
> 
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> 

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