ip directed broadcast to an interface secondary address

[riccobene]

I have a new network going in place that's going to coexist with an existing network as a secondary IP address on the interface.  We have an application that uses broadcast to communicate.  I configured "ip directed broadcast" but it hasn't been working.  Is this possible to do with a secondary address?  Interface configuration is below:

interface Vlan108
 description users
 ip address 192.168.0.13 255.255.255.0 secondary
 ip address 10.61.8.1 255.255.255.0
 ip helper-address 10.61.1.26
 ip directed-broadcast
end

[Richard Burts · Accepted solution]

I do not see a problem in this config. If a packet with destination address of 192.168.0.255 gets to the interface then I would expect that it would be sent out into the vlan as a local broadcast. Note that this broadcast would also be seen by host in the 10.68.8 network. Are you sure that packets for 192.168.0.255 are getting to the interface?

HTH

Rick

[riccobene]

This is correctly working, I was unsure if this worked on an interface with secondary and it definitely does.  Thanks!