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Neorouter - nrtap Link beat lost http://www.neorouter.com/forum/viewtopic.php?f=3&t=5862 |
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Author: | piman [ Wed Mar 16, 2016 11:25 pm ] |
Post subject: | Neorouter - nrtap Link beat lost |
Hi, Love Neorouter software, makes my work easier. My setup is as follows: NeoServer: Raspberry Pi 2 Clients : Windows and Raspberry PIs (1 and 2) Typically at a remote site I have a Raspberry Pi running Neorouter Client which is connected via WIFI to a 3/4g Modem. It is also connected LAN on the copper port. The Raspberry Pi Neorouter Client have the following port forwarding rules. Code: iptables -I FORWARD -d 10.200.13.6 -m comment --comment "Accept to forward rdp traffic" -m tcp -p tcp --dport 3389 -j ACCEPT iptables -I FORWARD -m comment --comment "accept to forward rdp returned traffic" -s 10.200.13.6 -m tcp -p tcp --sport 3389 -j ACCEPT iptables -t nat -I PREROUTING -m tcp -p tcp --dport 3389 -m comment --comment "redirect pkts to HMI" -j DNAT --to-destination 10.200.13.6:3389 iptables -t nat -I POSTROUTING -m comment --comment "NAT the src IP" -d 10.200.13.6 -o eth0 -j MASQUERADE The above rules are used to forward Remote Desktop traffic to the Windows 2008 server on the LAN. I can connect to the Windows Server using remote desktop, however it keeps dropping the connection. Especially when coping files to/from the Remote Windows 2008 Server. I get the following error in the Client's syslog: Mar 17 04:04:34 raspberrypi ifplugd(nrtap)[2542]: Link beat lost. Mar 17 04:04:34 raspberrypi ifplugd(nrtap)[2542]: Exiting. Mar 17 04:04:35 raspberrypi ntpd[2158]: Deleting interface #4 nrtap, 10.1.1.14#123, interface stats: received=0, sent=0, dropped=0, active_time=1455 secs Mar 17 04:04:35 raspberrypi ntpd[2158]: peers refreshed Mar 17 04:04:45 raspberrypi ifplugd(nrtap)[2863]: ifplugd 0.28 initializing. Mar 17 04:04:45 raspberrypi ifplugd(nrtap)[2863]: Using interface nrtap/EA:EA:08:94:43:A7 with driver <tun> (version: 1.6) Mar 17 04:04:45 raspberrypi ifplugd(nrtap)[2863]: Using detection mode: SIOCETHTOOL Mar 17 04:04:45 raspberrypi ifplugd(nrtap)[2863]: Initialization complete, link beat detected. Mar 17 04:04:45 raspberrypi ifplugd(nrtap)[2863]: Executing '/etc/ifplugd/ifplugd.action nrtap up'. Mar 17 04:04:45 raspberrypi ifplugd(nrtap)[2863]: client: Ignoring unknown interface nrtap=nrtap. Mar 17 04:04:45 raspberrypi ifplugd(nrtap)[2863]: Program executed successfully. Mar 17 04:04:46 raspberrypi ntpd[2158]: Listen normally on 5 nrtap 10.1.1.14 UDP 123 Mar 17 04:04:46 raspberrypi ntpd[2158]: peers refreshed Any help regarding this issue would be greatly appreciated Thanks |
Author: | kevinz [ Thu Mar 17, 2016 2:50 pm ] |
Post subject: | Re: Neorouter - nrtap Link beat lost |
Hi piman, Would you stop the firewall on the Rpi and test it? Also make sure that NR DHCP IP range doesn't overlap with the physical network. Seem like NR is 10.0.0.0/255.255.255.0 and physical is 10.200.x.x/?.?.?.? . Please make sure they are not conflicted each other. Thanks, KevinZ - NeoRouter team |
Author: | piman [ Thu Mar 17, 2016 8:31 pm ] | ||
Post subject: | Re: Neorouter - nrtap Link beat lost | ||
Hi KevinZ, Thanks for the prompt reply. Much appropriated. The NR DHCP range is 10.1.1.0/24 and the LAN is 10.200.10.0/24 so this shouldn't be a problem. I've disabled the firewall in the Rpi (Client) by flushing the iptables and rebooting the device. I then copied files to the Rpi (Client) using SFTP, but it still keeps dropping the link. I've monitored the router (DD-WRT) to which the NeoServer is connected to. When the link is dropped, I get dropped messages in the router(See image file). The link is dropped when approx 50% of the 8MB file is copied. Should I be adding any additional firewall rules to the router? At the moment only port forwarding is allowed for udp and tcp connection to the neoserver ip address. Thanks and Regards, piman
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