Problem with XDCMP and VLAN

[carlos-oliveira]

Hi,

I am migrating a FDDI bridged network into a routed one, for that a 6509 with sup720 has been installed.

Everything seems to be OK until i tried to browse the XDMCP servers available, none appear (it should list dozens of Unix servers).

I assume that the servers are listening to broadcasts but i am failing to get those broacasts to get from remote VLANs. Only the same segment servers appear on the list. I have tried ip helper address and it does not seem to work.

Any ideas?

[Georg Pauwen]

Hello,

I think you have to use the interface command:

ip directed-broadcast

on your relevant (VLAN) interfaces.Without that command, directed broadcasts destined for the subnet to which an interface is attached will be dropped, rather than being broadcast.

Regards,

Georg

[carlos-oliveira]

Hi,

Tanks for your help.

The problem is solved. I was already using the "ip directed-broadcast" command but by some reason (human error most probably) when I introduced the command "ip helper-address" and "ip forward-protocol xdmcp" it did not enter correctly.

So all it was needed(after many hours) was to re-type the sequence and all went smooth.

Tank you again for your help.

Carlos Oliveira