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| <A HREF="mpd.html"><EM>Mpd 5.8 User Manual</EM></A> | <A HREF="mpd.html"><EM>Mpd 5.9 User Manual</EM></A> |
| <b>:</b> <A HREF="mpd62.html"><EM>Troubleshooting</EM></A> |
<b>:</b> <A HREF="mpd62.html"><EM>Troubleshooting</EM></A> |
| <b>:</b> <EM>Troubleshooting</EM><BR> |
<b>:</b> <EM>Troubleshooting</EM><BR> |
| <b>Previous:</b> <A HREF="mpd62.html"><EM>Troubleshooting</EM></A><BR> |
<b>Previous:</b> <A HREF="mpd62.html"><EM>Troubleshooting</EM></A><BR> |
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Line 22 mailing list or sourceforge.net mpd project forum.</p>
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Line 22 mailing list or sourceforge.net mpd project forum.</p>
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| <p> |
<p> |
| <dl> |
<dl> |
| |
|
| <dt><b><b>It does not works and I don't understand why.</b></b><dd><p>Mpd has extensive logging system supporting syslog. To direct logs | <dt><b><b>It does not work and I do not understand why.</b></b><dd><p>Mpd has extensive logging system supporting syslog. To direct logs |
| into a file add lines |
into a file add lines |
| <pre> |
<pre> |
| !mpd |
!mpd |
|
Line 35 SIGHUP to syslogd to reread config.</p>
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Line 35 SIGHUP to syslogd to reread config.</p>
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| <dt><b><b>Packets won't flow.</b></b><dd><p>Make sure you have set <code><b>gateway_enable="YES"</b></code> |
<dt><b><b>Packets won't flow.</b></b><dd><p>Make sure you have set <code><b>gateway_enable="YES"</b></code> |
| in <code>/etc/rc.conf</code>, otherwise your FreeBSD box will not |
in <code>/etc/rc.conf</code>, otherwise your FreeBSD box will not |
| route packets. | route packets.</p> |
| Alternately, invoke <code>sysctl -w net.inet.ip.forwarding=1</code> | |
| for immediate effect.</p> | |
| <p>Also, check your firewall settings. Mpd will create new interfaces |
<p>Also, check your firewall settings. Mpd will create new interfaces |
| which may need to be incorporated into your firewall rules. |
which may need to be incorporated into your firewall rules. |
| If you're doing PPTP, you need to allow TCP port 1723 and IP protocol |
If you're doing PPTP, you need to allow TCP port 1723 and IP protocol |
| 47 (GRE).</p> |
47 (GRE).</p> |
| |
|
| <dt><b><b>It doesn't work, and there are strange netgraph-related errors in the log.</b></b><dd><p>Make sure you have all the required netgraph KLD's loaded. | <dt><b><b>It does not work and there are strange netgraph-related errors in the log.</b></b><dd><p>Make sure you have all the required netgraph KLD's loaded. |
| You can check them by doing <code> kldstat -v | grep ng_ </code>.</p> |
You can check them by doing <code> kldstat -v | grep ng_ </code>.</p> |
| <p>Usually these are loaded on demand. If not, you can load them |
<p>Usually these are loaded on demand. If not, you can load them |
| manually using <code>kldload(8)</code>.</p> |
manually using <code>kldload(8)</code>.</p> |
|
Line 73 manually using <code>kldload(8)</code>.</p>
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Line 71 manually using <code>kldload(8)</code>.</p>
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| </ul> |
</ul> |
| </p> |
</p> |
| |
|
| <dt><b><b>My configuration doesn't seem to be working as expected.</b></b><dd><p>Make sure your <code>mpd.conf</code> file formatted properly. | <dt><b><b>My configuration does not seem to be working as expected.</b></b><dd><p>Make sure your <code>mpd.conf</code> file formatted properly. |
| Labels must be left-justified, while other lines must not.</p> |
Labels must be left-justified, while other lines must not.</p> |
| |
|
| <dt><b><b>I'm getting no valid response from the RADIUS server.</b></b><dd><p>Double-check the shared secret in the RADIUS servers config and the | <dt><b><b>I am getting no valid response from the RADIUS server.</b></b><dd><p>Double-check the shared secret in the RADIUS servers config and the |
| one specified in <code>mpd.conf</code> or <code>radius.conf</code>. |
one specified in <code>mpd.conf</code> or <code>radius.conf</code>. |
| Check the ports of the RADIUS server: they should be 1812 (authentication) |
Check the ports of the RADIUS server: they should be 1812 (authentication) |
| and 1813 (accounting), wich are also the default ports of mpd. In |
and 1813 (accounting), wich are also the default ports of mpd. In |
| the past unofficial port numbers (1645 and 1646) were used for RADIUS, |
the past unofficial port numbers (1645 and 1646) were used for RADIUS, |
| but these are deprecated.</p> |
but these are deprecated.</p> |
| |
|
| <dt><b><b>I'm getting ``Operation not permitted'' errors trying to run mpd.</b></b><dd><p>This is often caused by a combination of (a) using netgraph in KLD module | <dt><b><b>I am getting ``Operation not permitted'' errors trying to run mpd.</b></b><dd><p>This is often caused by a combination of (a) using netgraph in KLD module |
| form instead of statically compiling the various modules into the kernel |
form instead of statically compiling the various modules into the kernel |
| via kernel <code>config(8)</code> options, and (b) increasing your |
via kernel <code>config(8)</code> options, and (b) increasing your |
| kernel security level (see the <code>init(8)</code> man page), which prevents |
kernel security level (see the <code>init(8)</code> man page), which prevents |
| KLD modules from being loaded. Change one of these things to fix the problem.</p> |
KLD modules from being loaded. Change one of these things to fix the problem.</p> |
| |
|
| <dt><b><b>I've configured a link for dial-in, and sometimes after disconnecting | <dt><b><b>I have configured a link for dial-in and sometimes after disconnecting |
| mpd gets into some kind of infinite loop.</b></b><dd><p>This is because mpd is trying to ``redial,'' which of course is not | mpd gets into some kind of infinite loop.</b></b><dd><p>This is because mpd is trying to ``redial'' which of course is not |
| appropriate for dial-in links. Use <code>set link max-redial -1</code> and |
appropriate for dial-in links. Use <code>set link max-redial -1</code> and |
| <code>set bundle yes noretry</code> to disable the redial function.</p> |
<code>set bundle yes noretry</code> to disable the redial function.</p> |
| |
|
| <dt><b><b>I'm using mpd as PPTP server for Windows XP clients, when accessing bigger | <dt><b><b>I use mpd as PPTP server for Windows XP clients. While accessing bigger |
| websites, or listing larger ftp directories, then the connection | websites or listing larger ftp directories the connection |
| seems to hang.</b></b><dd><p>Windows XP insists on a very low MTU (usually 1396 Bytes), this needs | seems to hang.</b></b><dd><p>Windows XP insists on a very low MTU (usually 1396 Bytes). This needs |
| fragmentation, if bigger packets should be transmited over the link. | fragmentation if bigger packets should be transmitted over the link. |
| Fragmentation is negotiated at ICMP level, if there is a bad router | Fragmentation is negotiated at ICMP level. If there is a bad router |
| somewhere in the network, who drops such packets, then the connection | somewhere in the network dropping such packets then the connection |
| seems to hang. | hangs. |
| The first thing what you can try is reducing mpd's MTU value, by |
The first thing what you can try is reducing mpd's MTU value, by |
| setting: <code>set link mtu 1300</code> and <code>set bundle disable multilink</code>, |
setting: <code>set link mtu 1300</code> and <code>set bundle disable multilink</code>, |
| this should help in most cases. |
this should help in most cases. |
| For TCP connections it's possible enabling the TCP-MSS-Fix: | For TCP connections it is possible enabling the TCP-MSS-Fix: |
| <code>set iface enable tcpmssfix</code>.</p> |
<code>set iface enable tcpmssfix</code>.</p> |
| |
|
| <dt><b><b>Problems with MPPE stateless when connecting to Cisco devices.</b></b><dd><p>Upgrade the IOS of your device, see: |
<dt><b><b>Problems with MPPE stateless when connecting to Cisco devices.</b></b><dd><p>Upgrade the IOS of your device, see: |
|
Line 114 For TCP connections it's possible enabling the TCP-MSS
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Line 112 For TCP connections it's possible enabling the TCP-MSS
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| </p> |
</p> |
| |
|
| <HR NOSHADE> |
<HR NOSHADE> |
| <A HREF="mpd.html"><EM>Mpd 5.8 User Manual</EM></A> | <A HREF="mpd.html"><EM>Mpd 5.9 User Manual</EM></A> |
| <b>:</b> <A HREF="mpd62.html"><EM>Troubleshooting</EM></A> |
<b>:</b> <A HREF="mpd62.html"><EM>Troubleshooting</EM></A> |
| <b>:</b> <EM>Troubleshooting</EM><BR> |
<b>:</b> <EM>Troubleshooting</EM><BR> |
| <b>Previous:</b> <A HREF="mpd62.html"><EM>Troubleshooting</EM></A><BR> |
<b>Previous:</b> <A HREF="mpd62.html"><EM>Troubleshooting</EM></A><BR> |
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