Date: Wed, 13 Dec 2000 16:34:35 -0500 From: "sunnice" <sunnicezhao@yahoo.com> To: "newbies FreeBSD" <freebsd-newbies@freebsd.org> Subject: Re: What this message mean? Message-ID: <002201c0654c$7deeb650$0a64a8c0@domain.genextech.com>
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[-- Attachment #1 --] Thanks for your help, I still can not understand how it work. You mean, I must setup a firewall, A nat server is not enough to hide my network, right? In fact, I rebuild the BSD kernel and add FIRWALL option, but I set up firewall late to permit all package through it. I have a thought that if I have a firewall to translate packges, I will do not need NAT to share the internet, is it right? Sorry to bother you. ----- Original Message ----- From: "Adam LaBarge" <phinger@best.com> To: "sunnice" <sunnicezhao@yahoo.com> Sent: Wednesday, December 13, 2000 12:06 PM Subject: Re: What this message mean? > If you have a firewall and just one IP and route connection the the net to > the other machines, that would hide them from the ISP. Because the > outside world would only see the firewall. The outside world would > think that your firewalled machine is > making all the TCP/IP . ftp . whatever calls. You can also set you > firewall up so that people can not even see it. Manily it would not > return pings and whatnot. As far as that message, I am not sure. > -phinger > > > How many times have you committed suicide? > >Hi, >I setup a NAT server and it works well. but I always get a message from console: >arp: 192.168.100.13 is on xl1 but got reply from 00:50:04:08:0c:dc on xl0. > >I have two 3c509 NIC in the box, and the address 192.168.100.13 is the IP address of our lan. > >So, could any one tell me what this message mean, is there some thing wrong? or I mean, how to avoid this message? > >By the way, because I hide my lan behind this nat server, is it possible hide the information of my lan from my ISP, I do >not wnat they know how many computers I have and what IP address I used in my computers. > >Thanks. > >Sunnice [-- Attachment #2 --] <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=gb2312" http-equiv=Content-Type> <META content="MSHTML 5.00.3103.1000" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Thanks for your help, I still can not understand how it work.<BR>You mean, I must setup a firewall, A nat server is not enough to hide my<BR>network, right?<BR>In fact, I rebuild the BSD kernel and add FIRWALL option, but I set up<BR>firewall late to permit all package through it.<BR>I have a thought that if I have a firewall to translate packges, I will do<BR>not need NAT to share the internet, is it right?<BR>Sorry to bother you.<BR><BR>----- Original Message -----<BR>From: "Adam LaBarge" <<A href="mailto:phinger@best.com">phinger@best.com</A>><BR>To: "sunnice" <<A href="mailto:sunnicezhao@yahoo.com">sunnicezhao@yahoo.com</A>><BR>Sent: Wednesday, December 13, 2000 12:06 PM<BR>Subject: Re: What this message mean?<BR><BR><BR>> If you have a firewall and just one IP and route connection the the net to<BR>> the other machines, that would hide them from the ISP. Because the<BR>> outside world would only see the firewall. The outside world would<BR>> think that your firewalled machine is<BR>> making all the TCP/IP . ftp . whatever calls. You can also set you<BR>> firewall up so that people can not even see it. Manily it would not<BR>> return pings and whatnot. As far as that message, I am not sure.<BR>> -phinger<BR>><BR>><BR>> How many times have you committed suicide?<BR>><BR></FONT></DIV> <DIV><FONT face=Arial size=2> <DIV><FONT face=Arial size=2>>Hi, </FONT></DIV> <DIV><FONT face=Arial size=2>>I setup a NAT server and it works well. but I always get a message from console:</FONT></DIV> <DIV><FONT face=Arial size=2>>arp: 192.168.100.13 is on xl1 but got reply from 00:50:04:08:0c:dc on xl0.</FONT></DIV> <DIV>></DIV> <DIV><FONT face=Arial size=2>>I have two 3c509 NIC in the box, and the address 192.168.100.13 is the IP address of our lan.</FONT></DIV> <DIV>></DIV> <DIV><FONT face=Arial size=2>>So, could any one tell me what this message mean, is there some thing wrong? or I mean, how to avoid this message?</FONT></DIV> <DIV>></DIV> <DIV><FONT face=Arial size=2>>By the way, because I hide my lan behind this nat server, is it possible hide the information of my lan from my ISP, I do >not wnat they know how many computers I have and what IP address I used in my computers.</FONT></DIV> <DIV>></DIV> <DIV><FONT face=Arial size=2>>Thanks.</FONT></DIV> <DIV>></DIV> <DIV><FONT face=Arial size=2>>Sunnice</FONT></DIV></DIV></FONT></BODY></HTML>help
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