Date: Thu, 22 Nov 2001 16:18:54 -0500 From: "Ron Hensley" <ronh@intercom.net> To: "P K" <cyu0635@home.com>, <freebsd-questions@FreeBSD.ORG> Subject: Re: arp -a Message-ID: <001501c1739b$4f833ad0$0273150a@woodstock.lanalyse.com> References: <005301c173b5$96d8a5e0$0100a8c0@cr1034264a>
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This is a multi-part message in MIME format. ------=_NextPart_000_000E_01C17371.612C33B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 You only get MAC Addresses of devices on your own wire. When you ping a remote site like yahoo.com, your computer doesnt know how to get there, as yahoo.com's server isnt on your local wire. Thus it uses your default route. The MAC of your Router or Default Route Device would appear in your arp tables. - From there, that router learns how to get to the second router along the way and so on, until it makes it to yahoos LAN and then that WWW server. However your computer cant see any of that and never learns any MACs except devices talking on your own wire. - ---------------------------------------------------------------------- - ------- Ron Hensley (ronh@intercom.net) CCNA #10082337 - ---------------------------------------------------------------------- - ------- - ----- Original Message -----=20 From: P K=20 To: freebsd-questions@FreeBSD.ORG=20 Sent: Thursday, November 22, 2001 7:27 PM Subject: arp -a Hi all I ping yahoo.com. I couldn't get mac address from arp -a Why? How do I get the mac address? TIA -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.8 for non-commercial use <http://www.pgp.com>; iQA/AwUBO/1rvFFb04N5DzUjEQLc0gCeO1WtwngBoZ5ThHZQ0nzygAhL/W8An0Ck TNJdFX3AcPRi+zhjTPMo8saJ =3Da4IO -----END PGP SIGNATURE----- ------=_NextPart_000_000E_01C17371.612C33B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>-----BEGIN PGP SIGNED = MESSAGE-----<BR>Hash:=20 SHA1</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>You only get MAC Addresses of devices = on your own=20 wire.<BR>When you ping a remote site like yahoo.com, your computer = doesnt=20 know<BR>how to get<BR>there, as yahoo.com's server isnt on your local = wire. Thus=20 it uses<BR>your default route.<BR>The MAC of your Router or Default = Route Device=20 would appear in your<BR>arp tables.<BR>- From there, that router learns = how to=20 get to the second router along<BR>the way and so on, until it makes = it<BR>to=20 yahoos LAN and then that WWW server.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>However your computer cant see any of = that and=20 never learns any MACs<BR>except devices talking on your own = wire.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>-=20 ----------------------------------------------------------------------<BR= >-=20 -------<BR>Ron Hensley (<A=20 href=3D"mailto:ronh@intercom.net">ronh@intercom.net</A>) CCNA = #10082337<BR>-=20 ----------------------------------------------------------------------<BR= >-=20 -------<BR>- ----- Original Message ----- <BR>From: P K <BR>To: <A=20 href=3D"mailto:freebsd-questions@FreeBSD.ORG">freebsd-questions@FreeBSD.O= RG</A>=20 <BR>Sent: Thursday, November 22, 2001 7:27 PM<BR>Subject: arp = -a</FONT></DIV> <DIV> </DIV><FONT face=3DArial size=3D2> <DIV><BR>Hi all</DIV> <DIV> </DIV> <DIV>I ping yahoo.com. I couldn't get mac address from arp = -a<BR>Why?<BR>How do=20 I get the mac address?</DIV> <DIV> </DIV> <DIV>TIA</DIV> <DIV> </DIV> <DIV>-----BEGIN PGP SIGNATURE-----<BR>Version: PGPfreeware 6.5.8 for=20 non-commercial use <<A=20 href=3D"http://www.pgp.com">http://www.pgp.com</A>></DIV>; <DIV> </DIV> <DIV>iQA/AwUBO/1rvFFb04N5DzUjEQLc0gCeO1WtwngBoZ5ThHZQ0nzygAhL/W8An0Ck<BR>= TNJdFX3AcPRi+zhjTPMo8saJ<BR>=3Da4IO<BR>-----END=20 PGP SIGNATURE-----<BR></FONT></DIV></BODY></HTML> ------=_NextPart_000_000E_01C17371.612C33B0-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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