Ascend Archive
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Re: (ASCEND) IP Addresses needed for 4048
This is true. I haven't been using pool summary. Is there any advantages
when using a router to direct traffic?
Bennie
>> Why give more than 48 addresses. It only has 2 T-1's available so at a
>> max that's 48 connections.
>
>A couple of reasons:
>
>- There have been address pool leak bugs at at least one time in the past.
>If this bug should ever reappear, you have some slop so it will take more
>time to matter.
>
>- If you are using Pool Summary then your pool must be of a size equal to
>a power of two.
>
>- If you have more addresses than channels, then even if all your
>channels are constantly used, addresses get to have a little "rest"
>between uses. This means that if the previous user logged off
>uncleanly, possibly leaving some TCP connections open or otherwise
>leaving references to its address somewhere on the net, those
>connections and references are given a chance to time out before the
>address is reused. It's a bit farfetched, but there's actually a
>TCP connection hijacking potential here (security issue).
>
>- If you receive complaints about net abuse coming from a dynamic IP
>address, and you track it down using the supplied address and timestamp,
>to user A, but user A logged off very soon after the incident and
>user B immediately logged on thereafter and was given the same address
>as A, you have to consider that the culprit might be B if the
>timestamp given to you could be a few minutes off. If the address is
>not immediately reused, then you can be pretty certain the culprit is A.
>
>-Phil
**************************************
Bennie Warren /\
LemooreNet / /
320 West D Street / /
Lemoore, CA 93245 / / /\ /\
Phone: 209.924.5909 / /_ _ / \ / /
Fax 209.924.9578 \ _ _ / /\ \/ /
bennie@lemoorenet.com / / \ /
http://www.lemoorenet.com /_/ \/
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