My assumption is that the cpe being DMZed AND having a router on the other end of that DMZ that doesn't allow Pings is causing the issue.
It is a LARGE issue for us regardless. As we DMZ all CPEs to the customers router.
I hope Cambium will address this issue, as we can't monitor our radios because of it.
I know UBNT (having just come from using their products) has a check box to not DMZ management ports. Likewise CNS should not "just" use ping to verify if there is a radio to be imported in to CNS. It really should query via SNMP or check the default GUI port.
As it stands CNS is useless to us, and again, that's an issue.
As my first post I hope we see some kind of response to this problem, and it gets resolved some how.
Reading another thread, it seems that it doesn't just use ping.
So as a work around, there should be some way to prevent the DMZ from forwarding snmp. Or again a check box to pick or prevent local managment from being forwarded to the DMZ host. Is is already apparently done in the back end for the web gui. Things like SNMP should also be put in that automatic list if you expect CNS to work with a DMZ'ed CPE.
I'm bumping this in hopes that someone has or will come up with a solution. Come on Cambium. We need to be able to monitor our radios while in DMZ mode and PPPoE.... Or at least that is what I "think" is causing the issue with monitoring.
A DMZ forwards all traffic to the destination IP address. To avoid the DMZ can you configure a Separate Management IP at Configure -> Network -> Separate Wireless Management Interface. This address can be set up either as a static or via DHCP.
I'm aware of what DMX does. And we could possibly implement another subnet and enable the management IP. It would add a lot of complexity to our network, as we are fully routed, and use PPPoE to hand out public IPs to our customers radios.
Ideally, you could do what UBNT does, and has a check box to not allow managment ports to pass through the DMX. This would allow everyone to not have to use a seperate IP for managment, and reduce that complexity.
It's a shame your own monitoring software won't talk to a radio that has DMX enabled... That right there should tell you it's an issue...