Date: Wed, 06 Jan 1999 12:56:16 +0800 From: Michael Lee <kclee@leadtek.com.tw> To: freebsd-questions@FreeBSD.ORG Subject: [Server inside NAT]Is it possible Message-ID: <3692ECF0.714C3C41@leadtek.com.tw>
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這是一封 MIME 格式的多部份郵件。 --------------CA5EDE5C9F9EEF1345BEA186 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi Everyone, I know this could be a very strange question. I set up a server in our local net, using FreeBSD 2.2.8-Release. Our local net is protected by a commercial NAT box, which I think it runs under Windows NT. The strange ( and might be weird ) problem is that I can connect to my server box via the external ISP dial up account ( It works fine for telnet, http, ftp, and pop3 ) , however it is impossible to connect to this machine when I tried to connect it from other Win98 box inside our local net. We have a licensed Class C subnet, which goes from 203.79.220.xxx ( xxx=1~255 ) ( when I telnet to other machine outside, I get my address as 203.79.220.aaa ) the local network address is 203.75.249.xxx ( xxx=1~255 ) which corresponds to the external viewable address one by one in the following form: 203.75.249.aaa --> 203.79.220.aaa (Internal ) ( External ) The sysadm of our company does not set for the protection of the address from 251~254 ( 254 is our default router). that means you can connect to these machine from the outside 203.75.249.251~254 The connection from the outside for the following addrs. is not allowed. ( To protect our database server running under SCO UNIX. ) 203.75.249.2 ~ 250 203.75.249.1 runs on WinNT and is our ftp, http, dns server. It is strange that I can connect it under our local net and from the outside. Does FreeBSD have any limitation for this kind of arrangements? Why the WinNT server works fine but the FreeBSD server cannot work? How can I modify my setting or suggest the necessary modifications to our sysadm? Thank you very much! Michael Lee --------------CA5EDE5C9F9EEF1345BEA186 Content-Type: text/x-vcard; charset=us-ascii; name="kclee.vcf" Content-Transfer-Encoding: 7bit Content-Description: Michael Lee 的聯絡卡 Content-Disposition: attachment; filename="kclee.vcf" begin:vcard n:Lee;Michael x-mozilla-html:FALSE org:Leadtek Research Inc. version:2.1 email;internet:kclee@leadtek.com.tw title:Sales tel;fax:+886-2-22484103 tel;home:+886-935-014298 tel;work:+886-2-22484101 ext. 140 note:Graphics, Multimedia, and Communication adr;quoted-printable:;;5F,4,Alley11,Lane327,Sec.2,ChungShan Rd.,=0D=0AChung Ho,;Taipei Hsien;;235;Taiwan,R.O.C x-mozilla-cpt:;0 fn:Michael Lee end:vcard --------------CA5EDE5C9F9EEF1345BEA186-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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