I use monowall like router for bridging 2 lan. (192.168.9.0 (lan) and
192.168.10.0 (wan) )

I have dhcp server enabled on lan and open all the rules for any traffic
Wan -> LAN and LAN -> WAN.

I test with two pc's in the lan area opening file (windows) on a server
in the WAN area.

When only one open a file it works ..
When two pc's open different file on the same server in the same times
the connexion are broken.

I have done test and doing all the same action in the WAN area without
monowall and it give not problem.

- So what is wrong ??????

Here is my config file :

<?xml version="1.0"?>
<m0n0wall>
	<version>1.4</version>
	<system>
		<hostname>wifigateway</hostname>
		<domain>wireless.monalisa.fr</domain>
		<username>admin</username>
		<password>$1$dp69HP7c$06kTTer9mSV2x/krQn8DI/</password>
		<timezone>Etc/UTC</timezone>
		<time-update-interval>300</time-update-interval>
		<timeservers>pool.ntp.org</timeservers>
		<webgui>
			<protocol>http</protocol>
			<port/>
			<certificate/>
			<private-key/>
		</webgui>
		<dnsserver>192.168.10.64</dnsserver>
		<dnsserver>192.168.10.10</dnsserver>
		<disablefirmwarecheck/>
	</system>
	<interfaces>
		<lan>
			<if>fxp0</if>
			<ipaddr>192.168.9.1</ipaddr>
			<subnet>24</subnet>
		</lan>
		<wan>
			<if>fxp1</if>
			<mtu/>
			<spoofmac/>
			<ipaddr>192.168.10.7</ipaddr>
			<subnet>24</subnet>
			<gateway>192.168.10.1</gateway>
		</wan>
	</interfaces>
	<staticroutes>
		<route>
			<interface>lan</interface>
			<network>192.168.1.0/24</network>
			<gateway>192.168.10.211</gateway>
			<descr>vers lan 1 par contivity</descr>
		</route>
	</staticroutes>
	<pppoe/>
	<pptp/>
	<bigpond/>
	<dyndns>
		<type>dyndns</type>
		<username/>
		<password/>
		<host/>
		<mx/>
	</dyndns>
	<dhcpd>
		<lan>
			<range>
				<from>192.168.9.100</from>
				<to>192.168.9.245</to>
			</range>
			<defaultleasetime>7500</defaultleasetime>
			<maxleasetime>86400</maxleasetime>
			<enable/>
		</lan>
	</dhcpd>
	<pptpd>
		<mode/>
		<redir/>
		<localip/>
		<remoteip/>
	</pptpd>
	<dnsmasq/>
	<snmpd>
		<syslocation/>
		<syscontact/>
		<rocommunity>public</rocommunity>
	</snmpd>
	<diag>
		<ipv6nat>
			<ipaddr/>
		</ipv6nat>
	</diag>
	<bridge>
		<filteringbridge/>
	</bridge>
	<syslog>
		<reverse/>
		<nentries>100</nentries>
		<remoteserver/>
	</syslog>
	<nat/>
	<filter>
		<rule>
			<type>pass</type>
			<interface>wan</interface>
			<source>
				<address>192.168.10.0/24</address>
			</source>
			<destination>
				<address>192.168.9.0/24</address>
			</destination>
			<log/>
			<descr>WAN vers LAN</descr>
		</rule>
		<rule>
			<type>pass</type>
			<interface>lan</interface>
			<source>
				<address>192.168.9.0/24</address>
			</source>
			<destination>
				<address>192.168.10.0/24</address>
			</destination>
			<log/>
			<descr>wireless vers WAN</descr>
		</rule>
		<rule>
			<type>pass</type>
			<interface>lan</interface>
			<source>
				<address>192.168.9.0/24</address>
			</source>
			<destination>
				<address>192.168.1.0/24</address>
			</destination>
			<log/>
			<descr>lan vers lan 1</descr>
		</rule>
		<tcpidletimeout/>
	</filter>
	<shaper/>
	<ipsec/>
	<aliases/>
	<proxyarp/>
	<wol/>
	<captiveportal>
		<page>
			<htmltext> </htmltext>
		</page>
		<timeout>60</timeout>
		<interface>lan</interface>
		<idletimeout>60</idletimeout>
		<httpsname/>
		<certificate/>
		<private-key/>
		<redirurl/>
		<radiusip/>
		<radiusport/>
		<radiusacctport/>
		<radiuskey/>
	</captiveportal>
</m0n0wall>