walk on lan issue

[arumugasamy]

When we tested this walk on lan with the below config on primary core switch, the solu working but if we put the walk on lan tool on separate server other than the dhcp server , then it is not working.we were using walkonlangui.exe and walkonlanmonitor.exe.walkonlangui.exe run on  server and the walkonlanmonitor.exe run on client that need to be walked on. when WOL server is separate  than dhcp server , nothing shows on client monitor screen. 172.16.19.199 is dhcp server and 172.16.10.110 is WOL server . In 1st scenario both dhcp and wol tool on dhcp server 172.16.19.199 and working fine but if i separate the wol server to 172.16.19.110 and dhcp server as it is with 172.16.19.199 then solution not working.Customer plan is to implement the spicework in their lan for mictosoft update to be pushed to the clients machines.

working config as below

access-list 101 permit udp host 172.16.19.199 any eq 7 log

!

ip forward-protocol udp 7

!

int vlan 4

ip helper-address 172.16.19.199

ip directed-broadcast 101

!

int vlan 19

ip helper-address 172.16.4.255

below is the config not working

access-list 101 permit udp host 172.16.19.110 any eq 7 log

!

ip forward-protocol udp 7

!

int vlan 4

ip helper-address 172.16.19.199

ip helper-address 172.16.19.110

ip directed-broadcast 101

!

int vlan 19

ip helper-address 172.16.4.255

Please can u help me to get the correct working solution.

Thx

SAM

[Richard Burts]

Sam

You do not give us enough information to allow us to accurately and completely identify the issues and how to solve them. I will give some observations and suggestions. These may be enough to help you figure out your problems. If not then you need to provide additional information for us.

- the vlan interfaces that you show us do not have IP addresses configured. If there are no IP addresses on the vlan interface then the helper address can not work. If there are IP addresses on the vlan interfaces then we need to know what they are.

- it is not clear in what you have posted where (which subnet and which interface) the server is located and where the clients are located. I am guessing that the server is in vlan 19 and that the clients are in vlan 4. Is that correct?

- vlan 4 has these helper addresses configured.

ip helper-address 172.16.19.199

ip helper-address 172.16.19.110

these appear to be the addresses of the servers. So what is the purpose of these helper addresses? Perhaps the helper address for 172.16.19.199 is for DHCP for clients on this vlan. But what is the second helper address for?

HTH

Rick