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[l2tpns.git] / Docs / manual.html
diff --git a/Docs/manual.html b/Docs/manual.html
index a857d9b..5c830f2 100644 (file)
--- a/Docs/manual.html
+++ b/Docs/manual.html
@@ -56,7 +56,6 @@ H3 {
     <LI><A HREF="#Filtering">Filtering</A></LI>
     <LI><A HREF="#Clustering">Clustering</A></LI>
     <LI><A HREF="#Routing">Routing</A></LI>
     <LI><A HREF="#Filtering">Filtering</A></LI>
     <LI><A HREF="#Clustering">Clustering</A></LI>
     <LI><A HREF="#Routing">Routing</A></LI>
-    <LI><A HREF="#AvoidingFragmentation">Avoiding Fragmentation</A></LI>
     <LI><A HREF="#Performance">Performance</A></LI>
 </OL>
 
     <LI><A HREF="#Performance">Performance</A></LI>
 </OL>
 
@@ -185,6 +184,18 @@ the same as the LAC, or authentication will fail.  Only actually be
 used if the LAC requests authentication.
 </LI>
 
 used if the LAC requests authentication.
 </LI>
 
+<LI><B>l2tp_mtu</B> (int)<BR>
+MTU of interface for L2TP traffic (default: 1500).  Used to set link
+MRU and adjust TCP MSS.
+</LI>
+
+<LI><B>ppp_restart_time</B> (int)<BR>
+<B>ppp_max_configure</B> (int)<BR>
+<B>ppp_max_failure</B> (int)<BR>
+PPP counter and timer values, as described in &sect;4.1 of
+<a href="ftp://ftp.rfc-editor.org/in-notes/rfc1661.txt">RFC1661</a>.
+</LI>
+
 <LI><B>primary_dns</B> (ip address)
 <LI><B>secondary_dns</B> (ip address)<BR>
 Whenever a PPP connection is established, DNS servers will be sent to the
 <LI><B>primary_dns</B> (ip address)
 <LI><B>secondary_dns</B> (ip address)<BR>
 Whenever a PPP connection is established, DNS servers will be sent to the
@@ -229,6 +240,11 @@ A comma separated list of supported RADIUS authentication methods
 (<B>pap</B> or <B>chap</B>), in order of preference (default <B>pap</B>).
 </LI>
 
 (<B>pap</B> or <B>chap</B>), in order of preference (default <B>pap</B>).
 </LI>
 
+<LI><B>radius_dae_port</B> (short)<BR>
+Port for DAE RADIUS (Packet of Death/Disconnect, Change of Authorization)
+requests (default: <B>3799</B>).
+</LI>
+
 <LI><B>allow_duplicate_users</B> (boolean)</BR>
 Allow multiple logins with the same username.  If false (the default),
 any prior session with the same username will be dropped when a new
 <LI><B>allow_duplicate_users</B> (boolean)</BR>
 Allow multiple logins with the same username.  If false (the default),
 any prior session with the same username will be dropped when a new
@@ -323,6 +339,10 @@ on <A HREF="#Clustering">Clustering</A> for more information.
 Interface for cluster packets (default: eth0).
 </LI>
 
 Interface for cluster packets (default: eth0).
 </LI>
 
+<LI><B>cluster_mcast_ttl</B> (int)<BR>
+TTL for multicast packets (default: 1).
+</LI>
+
 <LI><B>cluster_hb_interval</B> (int)<BR>
 Interval in tenths of a second between cluster heartbeat/pings.
 </LI>
 <LI><B>cluster_hb_interval</B> (int)<BR>
 Interval in tenths of a second between cluster heartbeat/pings.
 </LI>
@@ -696,12 +716,15 @@ killall -HUP l2tpns
 </PRE>
 
 The signals understood are:
 </PRE>
 
 The signals understood are:
-<UL>
-<LI>SIGHUP - Reload the config from disk and re-open log file</LI>
-<LI>SIGTERM / SIGINT - Shut down.</LI>
-<LI>SIGQUIT - Shut down cleanly.  This will send a disconnect message for
-every active session and tunnel before shutting down.</LI>
-</UL>
+<DL>
+<DT>SIGHUP</DT><DD>Reload the config from disk and re-open log file.</DD>
+<DT>SIGTERM, SIGINT</DT><DD>Stop process.  Tunnels and sessions are not
+terminated.  This signal should be used to stop l2tpns on a
+<A HREF="#Clustering">cluster node</A> where there are other machines to
+continue handling traffic.</DD>
+<DT>SIGQUIT</DT><DD>Shut down tunnels and sessions, exit process when
+complete.</DD>
+</DL>
 
 <H2 ID="Throttling">Throttling</H2>
 
 
 <H2 ID="Throttling">Throttling</H2>
 
@@ -814,14 +837,14 @@ supplied structure:
                some way.
                </TD>
                <TD>
                some way.
                </TD>
                <TD>
-               <UL>
-                       <LI>t - Tunnel ID</LI>
-                       <LI>s - Session ID</LI>
-                       <LI>username</LI>
-                       <LI>password</LI>
-                       <LI>protocol (0xC023 for PAP, 0xC223 for CHAP)</LI>
-                       <LI>continue_auth - Set to 0 to stop processing authentication modules</LI>
-               </UL>
+               <DL>
+                       <DT>t<DD>Tunnel
+                       <DT>s<DD>Session
+                       <DT>username
+                       <DT>password
+                       <DT>protocol<DD>0xC023 for PAP, 0xC223 for CHAP
+                       <DT>continue_auth<DD>Set to 0 to stop processing authentication modules
+               </DL>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>post_auth</B></TD>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>post_auth</B></TD>
@@ -831,16 +854,16 @@ supplied structure:
                to be accepted.
                </TD>
                <TD>
                to be accepted.
                </TD>
                <TD>
-               <UL>
-                       <LI>t - Tunnel ID</LI>
-                       <LI>s - Session ID</LI>
-                       <LI>username</LI>
-                       <LI>auth_allowed - This is already set to true or
+               <DL>
+                       <DT>t<DD>Tunnel
+                       <DT>s<DD>Session
+                       <DT>username
+                       <DT>auth_allowed<DD>This is already set to true or
                        false depending on whether authentication has been
                        allowed so far.  You can set this to 1 or 0 to force
                        false depending on whether authentication has been
                        allowed so far.  You can set this to 1 or 0 to force
-                       allow or disallow authentication</LI>
-                       <LI>protocol (0xC023 for PAP, 0xC223 for CHAP)</LI>
-               </UL>
+                       allow or disallow authentication
+                       <DT>protocol<DD>0xC023 for PAP, 0xC223 for CHAP
+               </DL>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>packet_rx</B></TD>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>packet_rx</B></TD>
@@ -849,12 +872,12 @@ supplied structure:
                seriously slow down the system.</FONT>
                </TD>
                <TD>
                seriously slow down the system.</FONT>
                </TD>
                <TD>
-               <UL>
-                       <LI>t - Tunnel ID</LI>
-                       <LI>s - Session ID</LI>
-                       <LI>buf - The raw packet data</LI>
-                       <LI>len - The length of buf</LI>
-               </UL>
+               <DL>
+                       <DT>t<DD>Tunnel
+                       <DT>s<DD>Session
+                       <DT>buf<DD>The raw packet data
+                       <DT>len<DD>The length of buf
+               </DL>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>packet_tx</B></TD>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>packet_tx</B></TD>
@@ -863,12 +886,12 @@ supplied structure:
                seriously slow down the system.</FONT>
                </TD>
                <TD>
                seriously slow down the system.</FONT>
                </TD>
                <TD>
-               <UL>
-                       <LI>t - Tunnel ID</LI>
-                       <LI>s - Session ID</LI>
-                       <LI>buf - The raw packet data</LI>
-                       <LI>len - The length of buf</LI>
-               </UL>
+               <DL>
+                       <DT>t<DD>Tunnel
+                       <DT>s<DD>Session
+                       <DT>buf<DD>The raw packet data
+                       <DT>len<DD>The length of buf
+               </DL>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>timer</B></TD>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>timer</B></TD>
@@ -877,9 +900,9 @@ supplied structure:
                you do is reentrant.
                </TD>
                <TD>
                you do is reentrant.
                </TD>
                <TD>
-               <UL>
-                       <LI>time_now - The current unix timestamp</LI>
-               </UL>
+               <DL>
+                       <DT>time_now<DD>The current unix timestamp
+               </DL>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>new_session</B></TD>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>new_session</B></TD>
@@ -887,10 +910,10 @@ supplied structure:
                session is now ready to handle traffic.
                </TD>
                <TD>
                session is now ready to handle traffic.
                </TD>
                <TD>
-               <UL>
-                       <LI>t - Tunnel ID</LI>
-                       <LI>s - Session ID</LI>
-               </UL>
+               <DL>
+                       <DT>t<DD>Tunnel
+                       <DT>s<DD>Session
+               </DL>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>kill_session</B></TD>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>kill_session</B></TD>
@@ -898,10 +921,10 @@ supplied structure:
                This may be called multiple times for the same session.
                </TD>
                <TD>
                This may be called multiple times for the same session.
                </TD>
                <TD>
-               <UL>
-                       <LI>t - Tunnel ID</LI>
-                       <LI>s - Session ID</LI>
-               </UL>
+               <DL>
+                       <DT>t<DD>Tunnel
+                       <DT>s<DD>Session
+               </DL>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>radius_response</B></TD>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>radius_response</B></TD>
@@ -911,12 +934,24 @@ supplied structure:
                modules.
                </TD>
                <TD>
                modules.
                </TD>
                <TD>
-               <UL>
-                       <LI>t - Tunnel ID</LI>
-                       <LI>s - Session ID</LI>
-                       <LI>key</LI>
-                       <LI>value</LI>
-               </UL>
+               <DL>
+                       <DT>t<DD>Tunnel
+                       <DT>s<DD>Session
+                       <DT>key
+                       <DT>value
+               </DL>
+               </TD>
+       </TR>
+       <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>radius_reset</B></TD>
+               <TD>This is called whenever a RADIUS CoA request is
+               received to reset any options to default values before
+               the new values are applied.
+               </TD>
+               <TD>
+               <DL>
+                       <DT>t<DD>Tunnel
+                       <DT>s<DD>Session
+               </DL>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>control</B></TD>
                </TD>
        </TR>
        <TR VALIGN=TOP BGCOLOR=WHITE><TD><B>control</B></TD>
@@ -925,21 +960,13 @@ supplied structure:
                required.
                </TD>
                <TD>
                required.
                </TD>
                <TD>
-               <UL>
-                       <LI>buf - The raw packet data</LI>
-                       <LI>l - The raw packet data length</LI>
-                       <LI>source_ip - Where the request came from</LI>
-                       <LI>source_port - Where the request came from</LI>
-                       <LI>response - Allocate a buffer and put your response in here</LI>
-                       <LI>response_length - Length of response</LI>
-                       <LI>send_response - true or false whether a response
-                       should be sent.  If you set this to true, you must
-                       allocate a response buffer.</LI>
-                       <LI>type - Type of request (see nsctl.c)</LI>
-                       <LI>id - ID of request</LI>
-                       <LI>data - I'm really not sure</LI>
-                       <LI>data_length - Length of data</LI>
-               </UL>
+               <DL>
+                       <DT>iam_master<DD>Cluster master status
+                       <DT>argc<DD>The number of arguments
+                       <DT>argv<DD>Arguments
+                       <DT>response<DD>Return value: NSCTL_RES_OK or NSCTL_RES_ERR
+                       <DT>additional<DD>Extended response text
+               </DL>
                </TD>
        </TR>
 </TABLE>
                </TD>
        </TR>
 </TABLE>
@@ -1031,22 +1058,6 @@ ibgp" for IBGP.  If this is not supported by your IOS revision, you
 can use "maximum-paths" (which works for EBGP) and set
 <B>as_number</B> to a private value such as 64512.<P>
 
 can use "maximum-paths" (which works for EBGP) and set
 <B>as_number</B> to a private value such as 64512.<P>
 
-<H2 ID="AvoidingFragmentation">Avoiding Fragmentation</H2>
-
-Fragmentation of encapsulated return packets to the LAC may be avoided
-for TCP sessions by adding a firewall rule to clamps the MSS on
-outgoing SYN packets.
-
-The following is appropriate for interfaces with a typical MTU of
-1500:
-
-<pre>
-iptables -A FORWARD -i tun+ -o eth0    \
-    -p tcp --tcp-flags SYN,RST SYN     \
-    -m tcpmss --mss 1413:1600          \
-    -j TCPMSS --set-mss 1412
-</pre>
-
 <H2 ID="Performance">Performance</H2>
 
 Performance is great.<P>
 <H2 ID="Performance">Performance</H2>
 
 Performance is great.<P>
for cloning use: "git clone git://git.sameswireless.fr/l2tpns.git" ; For add to your sources.list: "deb http://package.sameswifi.fr/ jessie main"