12-05-2024, 09:21 AM
Hi,
I have a server app that needs to know if there are other instances of the same server app running on the same VLAN or different VLANs.
When I try using the Broadcast function in the UDP client/server and using the IP address "255.255.255.255," it only sends the message to the current VLAN and local machine. But when I use that VLAN IP address something like "192.168.5.255" it does broadcast the message to all the servers that listen to the port I defined.
I already have a way in mind which is to force the user to add a list of VLANs in a config file, but let's say they forget or make a mistake I want this to be more automatic so that the Master server can discover the other VLANs on the network on its own. Also, I don't want to loop all possible IP numbers from 0 to 255 just to discover if there is a possibility that this IP is in fact a VLAN or not.
Does Indy have anything to help me with this, or maybe broadcast the message to the whole network across VLANs?
I have a server app that needs to know if there are other instances of the same server app running on the same VLAN or different VLANs.
When I try using the Broadcast function in the UDP client/server and using the IP address "255.255.255.255," it only sends the message to the current VLAN and local machine. But when I use that VLAN IP address something like "192.168.5.255" it does broadcast the message to all the servers that listen to the port I defined.
I already have a way in mind which is to force the user to add a list of VLANs in a config file, but let's say they forget or make a mistake I want this to be more automatic so that the Master server can discover the other VLANs on the network on its own. Also, I don't want to loop all possible IP numbers from 0 to 255 just to discover if there is a possibility that this IP is in fact a VLAN or not.
Does Indy have anything to help me with this, or maybe broadcast the message to the whole network across VLANs?