Date: Sun, 05 Apr 1998 20:01:32 -0500 From: Kris Kirby <kris@ninbox.ml.org> To: Andrew Stevens <andrew@log.on.ca> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@FreeBSD.ORG> Subject: Re: Using ICQ with an IP alias Message-ID: <3528296C.90326BF8@ninbox.ml.org> References: <m0yLyyD-0004G9C@logon.log.on.ca>
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> ICQ: I am able to establish chat sessions only if I initiate them. > Otherwise I will receive the request and click 'accept', but can't get any > further than that. Also, instant messages from other users must be sent > through the ICQ server (as if I'm offline), otherwise, the message "can't > establish direct connection to user" is displayed. > Speak Freely: The individual I'm talking to can hear me, but I can't hear > them. I can see the RD light on my modem busy, but these signals are not > being passed on to my voice machine. > I'm sure these problems are connected somehow. I added the necessary > ports to /etc/services in hopes that this would end the problem, but no luck > .. I've also tried "alias deny_incoming no" at the ppp prompt. Any thoughts You are correct. All of these problems are due to a unintentional firewall created by the gateway machine. I experience it myself and take full advantage of it. These services open sockets on your Windows machine which are linked to the programs, which act as servers. With a BSD box, these sockets aren't opened until you use a proxy. The good part is that your LAN cannot be seen from the internet without a proxy. So when you regulate the gateway (using ppp's packet filters or ipfw) you firewall the access methods to the LAN. Anything that comes from the internet to the LAN has to pass throught some form of proxy or gateway. -- Kris Kirby <kris@airnet.net> ------------------------------------------- TGIFreeBSD... 'Nuff said. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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