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Windows95, w 2 network cards and Internal networks causing unre
From: syousif () arn net (Sami A. Yousif)
Date: Thu, 9 Jan 1997 23:39:46 -0600
I have just noticed something on one of the networks that I work with, and was wondering if this is "old news", or just some quirk or can someone else verify this: (I know its not a unix item, but since it affects a network and may affect unix machines....) Background: Windows 95 machines with at least 2 network interfaces. A machine that has an interface connection on network A (using the 192.168.x.y ron routable range), and a connection on network B (standard class C address, world routable). Windows 95 NOT set to route (ie, the registry item not modified). Here comes the strange behavior: A machine on the internet tries to connect to the windows95 machine on the class C address. The windows 95 machine responds that its address is the 192.168 address (which of course can not be "called back") instead of the "legal" class C address The strange observation (observed using both ethload in dos, and trafshow on linux) is that when the machine being called tries to "call back" it causes a mini ICMP broadcast storm. Some clients try to connect back via ICMPs with a return address of the 192.168 network. Please note that this has been observed with at least five clients that react the same way (so it is not reserved to just one client being "buggy" but seems to be a general windows95 behavior). I have checked all the network settings on the windows95 machines to make sure that the TCPIP settings for each card were set up correctly. (on another note, the same thing happens when a computer has just an internal network, and a dialup networking connection. Windows 95 reports that its address is the 192.168 address with similar reactions as above) -- http://users.arn.net/~syousif mailto:syousif () arn net win(talk): syousif () mc119b wtamu edu win(talk): syousif () teddyr arn net
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