ensured Back To My Mac is disabled on the router and the Mac Mini (indeed, I don't believe Back To My Mac exists as such on High Sierra).ensured IP ranges do not overlap (as suggested also in above post): wired static from.enabled IGMP Snooping as suggested in this post: VPN Passthrough problems with Airport Extreme.I think something has gone wrong on the router. I do not think my ISP is blocking VPN traffic as this setup worked less than a week prior to the network mishap. This is the case both inside and outside the network whether I use my modem's external IP, a dynamic hostname (provided by ), or a subdomain on a CNAME entry for a DNS record I have control over. Attempting to scan for open ports on the Mac Mini from inside the network reveals the same situation. If the problem continues, verify your settings and contact your Administrator.Īttempting to scan for open ports on the router from outside the network reveals the ports for the other services (22, 80, 443, etc.), but none of the VPN ports (500, 1701, 4500, or 1723). I am able to connect to the VPN service from within my network, but outside the network (e.g., iPhone over cell network) I receive the error message: I have a forwarding rule for VPN setup on the router (UDP ports 500, 1701, 4500 TCP port 1723), and the VPN service within Server.App enabled on the Mac Mini. ![]() I have had success forwarding various services (ssh, http, https) from outside the network to the Mac Mini. Now, everything appears to be working except for VPN. Neither the physical topology of my network has not been altered, nor have the IP addresses of devices on my network changed. Before I noticed this was due to a 8 port hub losing power, I factory reset the router (unplugged power, held down reset button, plugged in power, waited for lights to start blinking, and reconfigured router). Following a factory reset, is my Airport Extreme 2013 no longer forwarding VPN traffic?įor years I have hosted a VPN from my home with various versions of Server.app (currently 5.6.3, latest for High Sierra) on various versions of OS X (currently 10.13, High Sierra) installed on a Mac Mini, wired through various ethernet hubs/switches to an Airport Extreme router (2013, 6th Generation running version 7.7.9).
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