The following instructions allow you to send a Wake-On-Lan (WOL) "Magic Packet" from the internet to a PC on your LAN behind the Actiontec NAT firewall.
From the PC you want to wake:
•Make sure that the NIC supports WOL.
•Make sure WOL is enabled in the machine BIOS
•Make a note of the IP address or machine name.
•Make a note of the MAC address of the NIC you want to receive the magic packet. e.g. aa:bb:cc:dd:ee:ff
Unfortunately, the Actiontec firmware (as of version 4.0.16.1.56.0.10.7) ages out its ARP cache. This means that when it receives a WOL packet from the WAN, it may have "forgotten" the IP address associated with the MAC address in the WOL packet. The Actiontec also does not allow creating a port forwarding rule to the LAN broadcast address (192.168.1.255). To get around both of these restrictions, we need to create a static ARP entry in the router that associates an unused IP address (192.168.1.254) with the broadcast MAC address (FF:FF:FF:FF:FF:FF).
Telnet to router:
telnet 192.168.1.1
username: admin
password: ******
Wireless Broadband Router> shell
BusyBox v0.50 (2007.11.14-21:26+0000) Built-in shell (lash)
Enter 'help' for a list of built-in commands.
/ # arp -s 192.168.1.254 FF:FF:FF:FF:FF:FF
/ #
Note: This static ARP entry will not survive a reboot of the router.
Now login to the Actiontec and Add WAKE-ON-LAN as a port forward protocol in the Actiontec:
•Click on ADVANCED icon at top
•Select Protocols
•ADD (at bottom of list)
•Service name: Wake-On-LAN
•Add server port
•Protocol: UDP
•Source port: ANY
•Dest port: SINGLE 9
•APPLY
•APPLY. Wake-On-LAN should now appear in the list of protocols.
•CLOSE
Add the Port Forward Rule
•Click on FIREWALL icon at top
•Select Port Forwarding on left menu.
•ADD
•Device: 192.168.1.254
•Protocol: Select Wake-On-LAN
•Forward to port: 9
•APPLY
•APPLY. You should now see Wake-On-LAN for UDP in the list of forwarded ports.
SECURITY RISK: This port forward rule should only be enabled when necessary since it will turn any packet received on port 9 into a broadcast packet on your LAN. Recommendation: If the software you are using supports it, I would suggest using an obscure port number, such as 10009, rather than the well known port 9 (security by obscurity).
You can send a WOL packet from here: »/wakeup The DSLReports WOL tool only supports port 9.
If you have trouble, a WOL sniffer can be downloaded here: »www.depicus.com/download.aspx?product=wolm
The above site also has a variety of other WOL tools.
Thanks to zerog  for his original post on the subject here: »MI424WR Wake On Lan (WOL) - working hack, needs testing
Revised 12/31/08 to replace DHCP reservation with static ARP.
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by More Fiber edited by birdfeedr
last modified: 2008-12-31 06:39:02 |
