WakeOnLan (WOL ) through Cisco 870 not working

[vic.orgos]

Hi,

I need to allow WOL packets through a Cisco 870W router to powerup pcs at a remote location. The device is running IOS version 12.4(9)T

The WOL magic packet will be coming from VLAN1 (192.168.2.0/24)  and going to FastEthernet4 (192.168.6.0/24).

The WOL application sends UDP packets on port 9

Here are the relevant running-config sections

interface Vlan1

ip address 192.168.2.30 255.255.255.0
no ip redirects
no ip unreachables
ip directed-broadcast
no ip proxy-arp
ip route-cache flow
ip tcp adjust-mss 1452

interface FastEthernet4

ip address 192.168.6.1 255.255.255.0
** ip helper-address 192.168.2.1
** ip helper-address 192.168.2.10
no ip redirects
no ip unreachables
ip directed-broadcast
no ip proxy-arp
ip route-cache flow
duplex auto
speed auto
no cdp enable

** the iphelper addresses are the domain dhcp servers.

I've also found documents recommending I add

ip forward-protocol udp 9

which I've added and still nothing. Can anyone tell me why this is not working?

Thank you.

Vic.

[paolo bevilacqua]

Try setting a static ARP entry for the PC, on the router

[vic.orgos]

It is not just one PC. I need to be able to wake up any workstation in the subnet on the other side of this router. Adding static arp entries is unmanageable.

[Jon Marshall]

vic.orgos wrote:
Hi,
I need to allow WOL packets through a Cisco 870W router to powerup pcs at a remote location. The device is running IOS version 12.4(9)T
The WOL magic packet will be coming from VLAN1 (192.168.2.0/24)  and going to FastEthernet4 (192.168.6.0/24).
The WOL application sends UDP packets on port 9
Here are the relevant running-config sections
interface Vlan1
ip address 192.168.2.30 255.255.255.0
 no ip redirects
 no ip unreachables
 ip directed-broadcast
 no ip proxy-arp
 ip route-cache flow
 ip tcp adjust-mss 1452
interface FastEthernet4
ip address 192.168.6.1 255.255.255.0
** ip helper-address 192.168.2.1
** ip helper-address 192.168.2.10
 no ip redirects
 no ip unreachables
 ip directed-broadcast
 no ip proxy-arp
 ip route-cache flow
 duplex auto
 speed auto
 no cdp enable
** the iphelper addresses are the domain dhcp servers.
I've also found documents recommending I add
ip forward-protocol udp 9
which I've added and still nothing. Can anyone tell me why this is not working?
Thank you.
Vic.

Vic

Add this to your config under the vlan 1 interface -

interface vlan 1

ip helper-address 192.168.6.255

Jon

[vic.orgos]

Solved it myself. I found that the PC that sends the magic packet,  which in our case is running RHEL (linux), needs a static route to the network in question. I then added

ip directed-broadcast

under FastEthernet 4, which is the interface for the network where the pcs are in.

Once I got that working, I locked it down a bit by creating an ACL

access-list 101 permit udp host 192.168.2.70 192.168.6.0 0.0.0.255 eq discard

and changed the first command to use the ACL like this

ip directed-broadcast 101

That is it. Thanks to all took the time to reply.

Regards,

Vic.