Hello Venkat,
I do not know any current issue with IPv4 / IPv6 support. Since IPV6 can support embedded IPV4 it is possible that you have to "constrict" the binding in cases like this. (i.e.: ip-protocol option) Can you please share with us your configuration and the list of your network interfaces (with the configured addresses)?
Note: Starting syslog-ng with the
-F (foreground)
-d (debug)
-e (stderr)
-v (verbose)
options, syslog-ng will provide verbosed information. Possibly with some details or error messages about the network binding.
Br,
Laci