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>
next in thread | raw e-mail | index | archive | help
This is a multi-part message in MIME format. ------=_NextPart_000_001F_01C06522.94675FB0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable 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,=20 >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 ------=_NextPart_000_001F_01C06522.94675FB0 Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content=3D"text/html; charset=3Dgb2312" http-equiv=3DContent-Type> <META content=3D"MSHTML 5.00.3103.1000" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>Thanks for your help, I still can not = understand=20 how it work.<BR>You mean, I must setup a firewall, A nat server is not = enough to=20 hide my<BR>network, right?<BR>In fact, I rebuild the BSD kernel and add = FIRWALL=20 option, but I set up<BR>firewall late to permit all package through = it.<BR>I=20 have a thought that if I have a firewall to translate packges, I will = do<BR>not=20 need NAT to share the internet, is it right?<BR>Sorry to bother=20 you.<BR><BR>----- Original Message -----<BR>From: "Adam LaBarge" <<A=20 href=3D"mailto:phinger@best.com">phinger@best.com</A>><BR>To: = "sunnice" <<A=20 href=3D"mailto:sunnicezhao@yahoo.com">sunnicezhao@yahoo.com</A>><BR>Se= nt:=20 Wednesday, December 13, 2000 12:06 PM<BR>Subject: Re: What this message=20 mean?<BR><BR><BR>> If you have a firewall and just one IP and route=20 connection the the net to<BR>> the other machines, that would hide = them from=20 the ISP. Because the<BR>> outside world would only see the=20 firewall. The outside world would<BR>> think that your = firewalled=20 machine is<BR>> making all the TCP/IP . ftp . whatever calls. = You can=20 also set you<BR>> firewall up so that people can not even see = it. =20 Manily it would not<BR>> return pings and whatnot. As far as = that=20 message, I am not sure.<BR>> -phinger<BR>><BR>><BR>> How = many times=20 have you committed suicide?<BR>><BR></FONT></DIV> <DIV><FONT face=3DArial size=3D2> <DIV><FONT face=3DArial size=3D2>>Hi, </FONT></DIV> <DIV><FONT face=3DArial size=3D2>>I setup a NAT server and it works = well. but I=20 always get a message from console:</FONT></DIV> <DIV><FONT face=3DArial size=3D2>>arp: 192.168.100.13 is on xl1 but = got reply=20 from 00:50:04:08:0c:dc on xl0.</FONT></DIV> <DIV>></DIV> <DIV><FONT face=3DArial size=3D2>>I have two 3c509 NIC in the box, = and the=20 address 192.168.100.13 is the IP address of our lan.</FONT></DIV> <DIV>></DIV> <DIV><FONT face=3DArial size=3D2>>So, could any one tell me what this = message=20 mean, is there some thing wrong? or I mean, how to avoid this=20 message?</FONT></DIV> <DIV>></DIV> <DIV><FONT face=3DArial size=3D2>>By the way, because I hide my = lan behind=20 this nat server, is it possible hide the information of my lan from my = ISP, I do=20 >not wnat they know how many computers I have and what IP address I = used in=20 my computers.</FONT></DIV> <DIV>></DIV> <DIV><FONT face=3DArial size=3D2>>Thanks.</FONT></DIV> <DIV>></DIV> <DIV><FONT face=3DArial = size=3D2>>Sunnice</FONT></DIV></DIV></FONT></BODY></HTML> ------=_NextPart_000_001F_01C06522.94675FB0-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-newbies" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?002201c0654c$7deeb650$0a64a8c0>