Shorewall group, I am having a hard time connecting to a remote PPTP from a LAN computer and was hoping I could get some hints on what could be going wrong.
Here is what I know: The remote VPN server is an Asus router. At time of writing it was 71.208.224.179. It is setup for PPTP with 128 bit MPPE encryption. I can connect on my android phone if I am on verizon's network, but I cannot connect if I am on the LAN network. Likewise I cannot connect on my laptop on the LAN network. I have run a tcpdump on the router while trying to connect to the VPN from the LAN. At a high level it seems that traffic is making it through for the initial connection setup and there are also some further PPP packets but it seems that the conversation just goes silent. I have tried setting up shorewall in two different manners with the same results: - Using AUTOHELPERS=Yes - Specifying HELPERS=amanda,ftp,irc,netbios-ns,pptp,sane,sip,snmp,tftp and using the following rule in conntrack: ?if __PPTP_HELPER CT:helper:pptp:PO - - tcp 1723 ?endif Any ideas? Thanks much. Andrew
+-------------+
| Asus Router |
| VPN PPTP | 71.208.224.179
+-------------++
|
| XXXXXXX
XXXXXXXXXXXXXXXX | XXXXXXX X
XX XXX | X XX
X Time Warner X+---+---+XX Verzion X
XX Cable XX X XX
X X XX X
XX XXXXX XXXX XX
XXX XXX+---+ XXXX++XXXX
XXXXXXX | |
| |
| |
| |
76.187.111.93 | |
+--+-------+ | Works!
|Shorewall | |
| Router | |
+---+------+ |
172.16.17.1/24 | |
| |
XXXXX+XX +--------++
172.16.17.99 XX X | Android |
+---------+ XX LAN X +---------+
| Laptop +-----+X XX |
+---------+ XXX +--------+
Doesn't Work XXXXXX Doesn't Work
shorewall.dump.gz
Description: application/gzip
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