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Hi All, I seem to be doing something wrong, but I cannot figure out what.. Mac Mini 2 eth ports Ubuntu 14.04 desktop eth0 as WAN eth1 as LAN, NO wifi Airvpn working to the outside world, DHCP an DNS working on the internal side 172.xxx.xxx.xxx range However the internal connected Raspberry gets it DHCP address and the PI DOES resolve ip-adresses but won't ping... 100% packet loss.... even when disconnected form Airvpn eth1 wil not ping outside of it's own range. Any help Much appreciated ! ifconfig on the mac-mini eth0 Link encap:Ethernet HWaddr xxxxxxxxxxxx inet addr:192.168.1.11 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::426c:8fff:fe03:d9a8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:676093 errors:0 dropped:0 overruns:0 frame:0 TX packets:1124729 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:177998285 (177.9 MB) TX bytes:1566505397 (1.5 GB) Interrupt:16 eth1 Link encap:Ethernet HWaddr 00:xxxxxxxxxxx inet addr:172.17.207.121 Bcast:172.17.207.255 Mask:255.255.255.0 inet6 addr: fe80::2e0:4cff:fe36:1399/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:4882 errors:0 dropped:0 overruns:0 frame:0 TX packets:2971 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:650373 (650.3 KB) TX bytes:1196377 (1.1 MB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:28680 errors:0 dropped:0 overruns:0 frame:0 TX packets:28680 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:71999461 (71.9 MB) TX bytes:71999461 (71.9 MB) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.4.10.46 P-t-P:10.4.10.46 Mask:255.255.0.0 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:26 errors:0 dropped:0 overruns:0 frame:0 TX packets:33 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:8383 (8.3 KB) TX bytes:3713 (3.7 KB) root@frank-Macmini:/home/frank/p2pool# ping google.comPING google.com (216.58.210.78) 56(84) bytes of data.64 bytes from lhr14s24-in-f14.1e100.net (216.58.210.78): icmp_seq=1 ttl=57 time=18.5 ms64 bytes from lhr14s24-in-f14.1e100.net (216.58.210.78): icmp_seq=2 ttl=57 time=18.4 ms64 bytes from lhr14s24-in-f14.1e100.net (216.58.210.78): icmp_seq=3 ttl=57 time=17.4 ms64 bytes from lhr14s24-in-f14.1e100.net (216.58.210.78): icmp_seq=4 ttl=57 time=18.0 ms^C--- google.com ping statistics ---4 packets transmitted, 4 received, 0% packet loss, time 3004msrtt min/avg/max/mdev = 17.426/18.142/18.598/0.468 ms and for the PI: pi@raspberrypi ~ $ ifconfigeth0 Link encap:Ethernet HWaddr b8:27:xxxxxxx inet addr:172.17.207.1 Bcast:172.17.207.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:8303 errors:0 dropped:0 overruns:0 frame:0 TX packets:10394 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2457180 (2.3 MiB) TX bytes:1520422 (1.4 MiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:34 errors:0 dropped:0 overruns:0 frame:0 TX packets:34 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2652 (2.5 KiB) TX bytes:2652 (2.5 KiB) pi@raspberrypi ~ $ ping google.comPING google.com (216.58.208.78) 56(84) bytes of data.^C--- google.com ping statistics ---12 packets transmitted, 0 received, 100% packet loss, time 11005ms IPtables: # Generated by iptables-save v1.4.21 on Tue Jan 5 13:58:24 2016*filter:INPUT ACCEPT [106256:16543662]:FORWARD ACCEPT [0:0]:OUTPUT ACCEPT [26509:243970113]-A FORWARD -i eth1 -j ACCEPT-A FORWARD -i eth1 -o eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT-A FORWARD -i eth0 -o eth1 -j ACCEPTCOMMIT*nat:PREROUTING ACCEPT [500:30748]:INPUT ACCEPT [58:3710]:OUTPUT ACCEPT [87:6770]:POSTROUTING ACCEPT [87:6770]-A POSTROUTING -o eth0 -j MASQUERADE-A POSTROUTING -o eth0 -j MASQUERADECOMMIT# Completed on Tue Jan 5 13:58:24 2016