RE: NetBIOS Messenger spam - how did it get in?
From: Damon McMahon (inst_karma@hotmail.com)Date: 10/31/02
- Previous message: Leonard.Ong@nokia.com: "RE: Physical Firewalls VS NAT"
- Maybe in reply to: Jason Coombs: "RE: NetBIOS Messenger spam - how did it get in?"
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From: "Damon McMahon" <inst_karma@hotmail.com> To: feltman@pacbell.net, security-basics@securityfocus.com Date: Thu, 31 Oct 2002 10:09:33 +1100
Ahhh yes my mistake, mixing up the source and destination addresses.
Of course, this begs the question why internet routers do not filter on
source address, but I'm sure the ISPs have their own self-justifying
reasons...
>
>1. Is this possible? I would have thought any packet
>with such a spoofed IP address would be deemed
>non-routable by any of the routers between the source
>host and mine, and hence would never make it to my host?
>The destination (your external address) is routable. Source is ignored
>unless prohibited. Non-routable addresses are not allowed to be the
>destination on the public Internet.
>
>jef
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- Previous message: Leonard.Ong@nokia.com: "RE: Physical Firewalls VS NAT"
- Maybe in reply to: Jason Coombs: "RE: NetBIOS Messenger spam - how did it get in?"
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