Concealing short disconnects

[Andrew P.]

Dan Nelson wrote:
> In the last episode (Feb 12), Andrew P. said:
> 
>>I have a few machines behind my FreeBSD box. The box connects to ISP
>>via ppp (PPPoE protocol). It's all working very nicely, but the ISP
>>is a pain - it disconnects every 24 hours. I can reconnect in just a
>>moment - so the diconnect is usually less than a second long, but
>>many applications, like ICQ/MSN and games "feel" the disconnect. The
>>matter is that these applications can handle fairly large packet loss
>>(e.g. Counter-Strike can cope with at least 15-second long 100%
>>packet loss), but AFAIK it's in the nature of the TCP/UDP that a
>>disconnect is a disconnect.
>>
>>As I know that FreeBSD is full of magic, is there any way to
>>conceal these reconnects as short moments of 100% packet loss?
>>I am ashamed to know very little about protocols' technicalities,
>>but I'll look into any sources you advise.
> 
> 
> Check to see if your IP number changes when you reconnect.  If it does,
> there's nothing you really can do; the remote system you were talking
> to knew you only by your old IP, and those packets coming to them from
> this other IP are unrelated.
> 

It changes only once in about a week. Let's say it doesn't change
at all. What then?

Best wishes,
Andrew P.