VPN outbound problems: Difference between revisions
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New page: First make sure port 1723 is open on the machine you want to connect to On the router using tcpdump -i eth0 host WINDOWSIP and not port 22 and not port 80 on the router (where eth0 is ... |
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First make sure port 1723 is open on the machine you want to connect to | <pre>First make sure port 1723 is open on the machine you want to connect to | ||
On the router | On the router | ||
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If you do that make sure | If you do that make sure | ||
echo "1" > /proc/sys/net/ipv4/conf/all/rp_filter | echo "1" > /proc/sys/net/ipv4/conf/all/rp_filter | ||
as well | as well</pre> |
Revision as of 13:50, 2 March 2007
First make sure port 1723 is open on the machine you want to connect to On the router using tcpdump -i eth0 host WINDOWSIP and not port 22 and not port 80 on the router (where eth0 is the INTERNAL interface) try to make the connection and look at the data. If you're sending and recieving lots of packets but the final ACKs aren't completing from the remote machine Check if ip masquerading is on /etc/init.d/ipmasq start If there's outgoing traffic to the remote machine but none coming back make sure ip forwarding is allowed echo "1" > /proc/sys/net/ipv4/ip_forward will allow outbound vpn connections. If you do that make sure echo "1" > /proc/sys/net/ipv4/conf/all/rp_filter as well