Well I'm having a wonderful time playing with ideas to access the web server on my eeePc on the boat.

My home router is a Draytek Vigor 2820n which has VPN capability itself. So I decided to try it.

I can connect using pptp from the eeePc on the boat to the 2820n's VPN service:-

root@eeepc:~# pptpsetup --create home --server zbmc.eu --username chris --start Password: Using interface ppp0 Connect: ppp0 <--> /dev/pts/1 CHAP authentication succeeded Cannot determine ethernet address for proxy ARP local IP address 192.168.1.202 remote IP address 192.168.1.1 root@eeepc:~#

... and I can then ping the router from the eeePc OK. However I can't get anything else to work, i.e. I can't seem to get any data across the VPN connection at all.

I have tried adding a route at the eeePc end:-

root@eeepc:~# route add -net 192.168.1.0 netmask 255.255.255.0 dev ppp0 root@eeepc:~# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.1.1 * 255.255.255.255 UH 0 0 0 ppp0 84-45-228-40.st 192.168.13.1 255.255.255.255 UGH 0 0 0 eth0 192.168.1.0 * 255.255.255.0 U 0 0 0 ppp0 192.168.13.0 * 255.255.255.0 U 0 0 0 eth0 default 192.168.13.1 0.0.0.0 UG 100 0 0 eth0 root@eeepc:~#

but still no joy.

root@eeepc:~# ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=255 time=82.0 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=255 time=76.7 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=255 time=79.6 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=255 time=77.8 ms 64 bytes from 192.168.1.1: icmp_seq=5 ttl=255 time=76.6 ms 64 bytes from 192.168.1.1: icmp_seq=6 ttl=255 time=74.9 ms ^C --- 192.168.1.1 ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5007ms rtt min/avg/max/mdev = 74.905/77.992/82.087/2.345 ms root@eeepc:~# ping 192.168.1.4 PING 192.168.1.4 (192.168.1.4) 56(84) bytes of data. From 192.168.1.34 icmp_seq=1 Destination Host Unreachable From 192.168.1.34 icmp_seq=2 Destination Host Unreachable From 192.168.1.34 icmp_seq=3 Destination Host Unreachable From 192.168.1.34 icmp_seq=4 Destination Host Unreachable From 192.168.1.34 icmp_seq=5 Destination Host Unreachable From 192.168.1.34 icmp_seq=6 Destination Host Unreachable ^C --- 192.168.1.4 ping statistics --- 7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6031ms , pipe 3

(the eeePc is on a 192.168.13.0 LAN so the IP addresses shouldn't conflict)

Similarly at the other end (my desktop machine) I can see the VPN but I can't push any data through it:-

root@chris:~# arp-scan -l Interface: eth0, datalink type: EN10MB (Ethernet) Starting arp-scan 1.8.1 with 256 hosts (http://www.nta-monitor.com/tools/arp-scan/) 192.168.1.1 00:50:7f:8b:35:40 DrayTek Corp. 192.168.1.2 00:01:6c:6c:c7:9b FOXCONN 192.168.1.6 00:04:4b:07:13:30 NVIDIA 192.168.1.84 70:f1:a1:2d:da:86 Liteon Technology Corporation 192.168.1.90 00:90:a9:70:06:ff WESTERN DIGITAL 192.168.1.122 78:ac:c0:63:90:d4 Hewlett Packard 192.168.1.150 00:04:20:26:55:19 Slim Devices, Inc. 192.168.1.202 00:50:7f:8b:35:40 DrayTek Corp. 192.168.1.81 00:01:e3:9d:8b:b5 Siemens AG

9 packets received by filter, 0 packets dropped by kernel Ending arp-scan 1.8.1: 256 hosts scanned in 1.360 seconds (188.24 hosts/sec). 9 responded

That 192.168.1.202 is the VPN network IP address on the router, but I can't ping it or anything:-

root@chris:~# ping 192.168.1.202 PING 192.168.1.202 (192.168.1.202) 56(84) bytes of data.

^C --- 192.168.1.202 ping statistics --- 4 packets transmitted, 0 received, 100% packet loss, time 3023ms

Am I missing something obvious somewhere and/or any ideas how to diagnose what's wrong?