Hi,

I think it should be "IP_MULTICAST_TTL"
https://github.com/netty/netty/blob/4.1/transport/src/main/java/io/netty/channel/ChannelOption.java#L122

But note that the ChannelOptions are no longer string literal unlike netty3... 
hopefully something like following would work
if (configuration.getOptions() != null) {
    for (Map.Entry<String, Object> entry : 
configuration.getOptions().entrySet()) {
        clientBootstrap.option(ChannelOption.valueOf(entry.getKey()), 
entry.getValue());
    }
}

Thanks,
Tomo

On 10/28/2016 11:39 PM, robina wrote:
Aha, many thanks Tomo.

I'll raise the issue in JIRA.

Following the update, do you know what I'd replace the 'XXX' with in the
'option.XXX' option to update the multicast TTL?

Regards,
Rob




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