Use ppp -nat, not ppp -alias (which is now depricated)
This commit is contained in:
Brian Somers
parent
73b282ac14
commit
9ffffe11ab
Notes:
svn2git
2020-12-08 03:00:23 +00:00
svn path=/head/; revision=6965
2 changed files with 30 additions and 30 deletions
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@ -13,7 +13,7 @@
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</author>
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</authorgroup>
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<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.46 2000/03/25 21:09:34 alfred Exp $</pubdate>
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<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.47 2000/04/03 09:36:31 brian Exp $</pubdate>
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<abstract>
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<para>This is the FAQ for FreeBSD versions 2.X and 3.X. All entries
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@ -5933,7 +5933,7 @@ program. <emphasis remap=tt>Natd</emphasis> allows you to connect an entire sub
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internet using only a single IP number.</para>
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<para>The <ulink URL="http://www.FreeBSD.org/cgi/man.cgi?ppp">ppp</ulink> program has similar functionality built in via
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the <option>-alias</option> switch. The <ulink URL="http://www.FreeBSD.org/cgi/man.cgi?libalias">alias library</ulink>
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the <option>-nat</option> switch. The <ulink URL="http://www.FreeBSD.org/cgi/man.cgi?libalias">alias library</ulink>
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is used in both cases.</para>
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</answer></qandaentry>
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@ -7048,8 +7048,8 @@ so that the source IP number is changed from the interface IP to
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the negotiated IP on the fly. This is essentially what the
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<emphasis remap=tt>iface-alias</emphasis> option in the latest version of <emphasis remap=bf>ppp</emphasis> is
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doing (with the help of <ulink URL="http://www.FreeBSD.org/cgi/man.cgi?libalias">libalias(3)</ulink>
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and ppp's <option>-alias</option> switch) - it's maintaining all previous
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interface addresses and aliasing them to the last negotiated address.</para>
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and ppp's <option>-nat</option> switch) - it's maintaining all previous
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interface addresses and NATing them to the last negotiated address.</para>
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<para>Another alternative (and probably the most reliable) would be
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to implement a system call that changes all bound sockets from one
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@ -7072,12 +7072,12 @@ is capable of fixing things retrospectively.</para>
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</answer></qandaentry>
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<qandaentry><question>
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<para>Why don't most games work with the -alias switch</para></question><answer>
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<para>Why don't most games work with the -nat switch</para></question><answer>
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<para>The reason games and the like don't work when libalias is
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in use is that the machine on the outside will try to open a
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connection or send (unsolicited) UDP packets to the machine
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on the inside. The packet alias software doesn't know that
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on the inside. The NAT software doesn't know that
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it should send these packets to the interior machine.</para>
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<para>To make things work, make sure that the only thing running
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@ -7094,7 +7094,7 @@ consistent. If they are, then the following line in the relevant
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section of /etc/ppp/ppp.conf will make the software functional:</para>
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<para>
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<literallayout> alias port proto internalmachine:port port
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<literallayout> nat port proto internalmachine:port port
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</literallayout>
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</para>
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@ -7130,7 +7130,7 @@ option that avoids ever requesting that the peer open connections
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back to the local machine.</para>
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<para><emphasis remap=bf>3)</emphasis> Redirect everything to the internal machine using
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``alias addr''. This is the sledge-hammer approach.</para>
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``nat addr''. This is the sledge-hammer approach.</para>
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</answer>
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</qandaentry>
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@ -7148,7 +7148,7 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>Quake</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:6112 6112</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:6112 6112</emphasis></para>
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<para>Alternatively, you may want to take a look at
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<ulink URL="http://www.battle.net/support/proxy/">www.battle.net</ulink> for Quake proxy support.</para>
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@ -7164,7 +7164,7 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>Quake 2</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:27901 27910</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:27901 27910</emphasis></para>
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</listitem>
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</itemizedlist>
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@ -7177,9 +7177,9 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>Red Alert</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:8675 8675</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:8675 8675</emphasis></para>
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<para><emphasis remap=tt>alias port udp internal:5009 5009</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:5009 5009</emphasis></para>
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</listitem>
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</itemizedlist>
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@ -7192,7 +7192,7 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>Half Life</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:27005 27015</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:27005 27015</emphasis></para>
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</listitem>
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</itemizedlist>
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@ -7205,9 +7205,9 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>PCAnywhere 8.0</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:5632 5632</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:5632 5632</emphasis></para>
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<para><emphasis remap=tt>alias port tcp internal:5631 5631</emphasis></para>
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<para><emphasis remap=tt>nat port tcp internal:5631 5631</emphasis></para>
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</listitem>
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</itemizedlist>
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@ -13,7 +13,7 @@
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</author>
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</authorgroup>
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<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.46 2000/03/25 21:09:34 alfred Exp $</pubdate>
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<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.47 2000/04/03 09:36:31 brian Exp $</pubdate>
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<abstract>
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<para>This is the FAQ for FreeBSD versions 2.X and 3.X. All entries
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@ -5933,7 +5933,7 @@ program. <emphasis remap=tt>Natd</emphasis> allows you to connect an entire sub
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internet using only a single IP number.</para>
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<para>The <ulink URL="http://www.FreeBSD.org/cgi/man.cgi?ppp">ppp</ulink> program has similar functionality built in via
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the <option>-alias</option> switch. The <ulink URL="http://www.FreeBSD.org/cgi/man.cgi?libalias">alias library</ulink>
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the <option>-nat</option> switch. The <ulink URL="http://www.FreeBSD.org/cgi/man.cgi?libalias">alias library</ulink>
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is used in both cases.</para>
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</answer></qandaentry>
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@ -7048,8 +7048,8 @@ so that the source IP number is changed from the interface IP to
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the negotiated IP on the fly. This is essentially what the
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<emphasis remap=tt>iface-alias</emphasis> option in the latest version of <emphasis remap=bf>ppp</emphasis> is
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doing (with the help of <ulink URL="http://www.FreeBSD.org/cgi/man.cgi?libalias">libalias(3)</ulink>
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and ppp's <option>-alias</option> switch) - it's maintaining all previous
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interface addresses and aliasing them to the last negotiated address.</para>
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and ppp's <option>-nat</option> switch) - it's maintaining all previous
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interface addresses and NATing them to the last negotiated address.</para>
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<para>Another alternative (and probably the most reliable) would be
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to implement a system call that changes all bound sockets from one
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@ -7072,12 +7072,12 @@ is capable of fixing things retrospectively.</para>
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</answer></qandaentry>
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<qandaentry><question>
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<para>Why don't most games work with the -alias switch</para></question><answer>
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<para>Why don't most games work with the -nat switch</para></question><answer>
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<para>The reason games and the like don't work when libalias is
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in use is that the machine on the outside will try to open a
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connection or send (unsolicited) UDP packets to the machine
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on the inside. The packet alias software doesn't know that
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on the inside. The NAT software doesn't know that
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it should send these packets to the interior machine.</para>
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<para>To make things work, make sure that the only thing running
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@ -7094,7 +7094,7 @@ consistent. If they are, then the following line in the relevant
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section of /etc/ppp/ppp.conf will make the software functional:</para>
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<para>
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<literallayout> alias port proto internalmachine:port port
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<literallayout> nat port proto internalmachine:port port
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</literallayout>
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</para>
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@ -7130,7 +7130,7 @@ option that avoids ever requesting that the peer open connections
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back to the local machine.</para>
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<para><emphasis remap=bf>3)</emphasis> Redirect everything to the internal machine using
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``alias addr''. This is the sledge-hammer approach.</para>
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``nat addr''. This is the sledge-hammer approach.</para>
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</answer>
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</qandaentry>
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@ -7148,7 +7148,7 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>Quake</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:6112 6112</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:6112 6112</emphasis></para>
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<para>Alternatively, you may want to take a look at
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<ulink URL="http://www.battle.net/support/proxy/">www.battle.net</ulink> for Quake proxy support.</para>
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@ -7164,7 +7164,7 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>Quake 2</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:27901 27910</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:27901 27910</emphasis></para>
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</listitem>
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</itemizedlist>
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@ -7177,9 +7177,9 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>Red Alert</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:8675 8675</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:8675 8675</emphasis></para>
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<para><emphasis remap=tt>alias port udp internal:5009 5009</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:5009 5009</emphasis></para>
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</listitem>
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</itemizedlist>
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@ -7192,7 +7192,7 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>Half Life</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:27005 27015</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:27005 27015</emphasis></para>
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</listitem>
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</itemizedlist>
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@ -7205,9 +7205,9 @@ be replaced with the IP number of the machine playing the game.</para>
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<para><emphasis remap=bf>PCAnywhere 8.0</emphasis>
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</para>
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<para><emphasis remap=tt>alias port udp internal:5632 5632</emphasis></para>
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<para><emphasis remap=tt>nat port udp internal:5632 5632</emphasis></para>
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<para><emphasis remap=tt>alias port tcp internal:5631 5631</emphasis></para>
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<para><emphasis remap=tt>nat port tcp internal:5631 5631</emphasis></para>
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</listitem>
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</itemizedlist>
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