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Cisco Wake on LAN
I'm trying to setup wake on LAN for my server guys to be able to wake up a pc in order to push updated to them during off hours. We are using a package called "LANdesk" to wake up the pc's with. Seems to be failing every time. We installed wireshark on the LANdesk server and it's sending out a WOL packet on port 8.
Below is the WOL config I am using in my core router:
interface Vlan1
description Servers
ip address 10.1.200.1 255.255.254.0
ip helper-address 10.1.200.16
ip helper-address 10.1.12.255
!
interface Vlan215
description WakeOnLAN Client Test
ip address 10.1.12.1 255.255.255.0
ip helper-address 10.1.200.72
ip directed-broadcast 100
!
ip forward-protocol udp 8
!
access-list 100 permit udp host 10.1.200.72 any eq 8
Below is the WOL config I am using in my core router:
interface Vlan1
description Servers
ip address 10.1.200.1 255.255.254.0
ip helper-address 10.1.200.16
ip helper-address 10.1.12.255
!
interface Vlan215
description WakeOnLAN Client Test
ip address 10.1.12.1 255.255.255.0
ip helper-address 10.1.200.72
ip directed-broadcast 100
!
ip forward-protocol udp 8
!
access-list 100 permit udp host 10.1.200.72 any eq 8
ASKER
We tested waking up a pc on VLAN1 and that seemed to work. Looks like the issue is more specific to crossing the vlan boundaries.
See if this can help
http://blog.ioshints.info/2009/03/generating-layer-2-broadcast-from.html
http://blog.ioshints.info/2009/03/generating-layer-2-broadcast-from.html
ASKER
From reading that is looks like I should be a static ARP entry into the core switch for the LANdesk server which is the box generating the WOL packets. Am I interpreting that correctly?
This is what I think about how this trick works. the WOL program needs to target the magic packet to a ip address on the same subnet of the client we want to WOL. On the switch or router responsible for doing ARP for this subnet we configure a static arp as mentioned on this blog. When the packet arrives it is broadcasted and recieved by all hosts on this subnet. Obviously the ip address used shouldn't be assigned to a client on this subnet. I am not sure if this is correct but you can give it a try and see.
ASKER
Well, there is more to the command than just "10.1.200.72 FFFF.FFFF.FFFF". I'm not sure what all parameters I would need to use. See below
CAT-6509(config)#arp 10.1.200.72 FFFF.FFFF.FFFF
% Incomplete command.
CAT-6509(config)#arp 10.1.200.72 FFFF.FFFF.FFFF ?
arpa ARP type ARPA
sap ARP type SAP (HP's ARP type)
smds ARP type SMDS
snap ARP type SNAP (FDDI and TokenRing)
srp-a ARP type SRP (side A)
srp-b ARP type SRP (side B)
CAT-6509(config)#arp 10.1.200.72 FFFF.FFFF.FFFF arpa ?
Async Async interface
CTunnel CTunnel interface
Dialer Dialer interface
FastEthernet FastEthernet IEEE 802.3
GigabitEthernet GigabitEthernet IEEE 802.3z
Loopback Loopback interface
MFR Multilink Frame Relay bundle interface
Multilink Multilink-group interface
Null Null interface
Port-channel Ethernet Channel of interfaces
Pos-channel POS Channel of interfaces
Tunnel Tunnel interface
Vif PGM Multicast Host interface
Virtual-Template Virtual Template interface
Virtual-TokenRing Virtual TokenRing
Vlan Catalyst Vlans
XTagATM Extended Tag ATM interface
alias Respond to ARP requests for the IP address
fcpa Fiber Channel
<cr>
CAT-6509(config)#arp 10.1.200.72 FFFF.FFFF.FFFF
CAT-6509(config)#arp 10.1.200.72 FFFF.FFFF.FFFF
% Incomplete command.
CAT-6509(config)#arp 10.1.200.72 FFFF.FFFF.FFFF ?
arpa ARP type ARPA
sap ARP type SAP (HP's ARP type)
smds ARP type SMDS
snap ARP type SNAP (FDDI and TokenRing)
srp-a ARP type SRP (side A)
srp-b ARP type SRP (side B)
CAT-6509(config)#arp 10.1.200.72 FFFF.FFFF.FFFF arpa ?
Async Async interface
CTunnel CTunnel interface
Dialer Dialer interface
FastEthernet FastEthernet IEEE 802.3
GigabitEthernet GigabitEthernet IEEE 802.3z
Loopback Loopback interface
MFR Multilink Frame Relay bundle interface
Multilink Multilink-group interface
Null Null interface
Port-channel Ethernet Channel of interfaces
Pos-channel POS Channel of interfaces
Tunnel Tunnel interface
Vif PGM Multicast Host interface
Virtual-Template Virtual Template interface
Virtual-TokenRing Virtual TokenRing
Vlan Catalyst Vlans
XTagATM Extended Tag ATM interface
alias Respond to ARP requests for the IP address
fcpa Fiber Channel
<cr>
CAT-6509(config)#arp 10.1.200.72 FFFF.FFFF.FFFF
I think arpa is the only argument needed. Have a look at this free utility. It looks interesting and may be works beyond broadcat boundaries.
http://magicpacket.free.fr/
http://magicpacket.free.fr/
ASKER
no go. I tried the static arp entry and it stopped all RDP sessions into that server.
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