[Dshield] DHCP/PPP (was Sobig IP list site.)
Porter, Richard USA
rwporter at nps.navy.mil
Sat Aug 23 02:47:27 GMT 2003
.... My netgear gets a new IP address (over PPPoE) around 2 day mark. Some ISPs (SBC in particular) force a renew.
From: Josh Tolley [mailto:josh at raintreeinc.com]
Sent: Fri 8/22/2003 4:14 PM
To: 'General DShield Discussion List'
Subject: RE: [Dshield] DHCP/PPP (was Sobig IP list site.)
...or if the connection is never cut on a DHCP network, there's never a need
to issue a new IP. My home netgear router has been on for... well... quite a
while anyway without cutting the connection, so I expect it's had the same
address the whole time.
> On Fri, 2003-08-22 at 14:25, Richard Roy wrote:
> > Am I off base here? I guess I don't follow the logic of
> targeting an
> > attack to happen after the worm reaches an estimated peak,
> using dial
> > ups that may or may not be there aside from the fact that
> the IP might
> > be there but in a dial up pool it might not be the same computer.
> ISPs can assign PPPoE users a static IP address based on the
> login. I'm
> sure regular dialup PPP could provide the same service: you dial a
> special number and log in and get the same IP address every time.
> DHCP (DSL or cable) can be configured to assign the same IP
> address to a
> given MAC address. If your MAC address changes, you get a different IP
> address. I've dealt with DSL providers in Canada that do
> this. ("Static
> IP address", hah!)
> John Hardin KA7OHZ
> Internal Systems Administrator voice:
> (425) 672-1304
> Apropos Retail Management Systems, Inc. fax:
> (425) 672-0192
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