We are a Telstra 4G / Anyconnect SSL VPN shop and I haven't heard of any complaints for this issue. Are you using Anyconnect, or just using the clientless VPN?
Are they 100% using the 4G connection and not accidentally on hotel / public Wi-Fi that might have a captive portal on it? I didn't think Anyconnect even had a portal detection feature, I've never seen one on any versions I have run. There might be a portal check feature if it does have one that is failing to reach your ASA/VPN termination gear, even though the actual connection is fine. I'm not aware of specifics around a mechanism if one exists so that’s speculation at best, but maybe ICMP reachability etc? Cheers, Ayden On 26/6/19, 1:18 pm, "AusNOG on behalf of Drikus Brits" <[email protected] on behalf of [email protected]> wrote: Howdy, Have anybody else picked up weird issues regarding SSLVPN connections. We've had a bunch of customers complaining about getting popups claiming that the user is behind a captive portal and needs to authenticate/resolve connectivity issues first before the SSLVPN software can connect. a bit spread thing trying to locate the exact reason, but seems it is very erratic with customers scattered. cheers, Drikus Brennan IT _______________________________________________ AusNOG mailing list [email protected] http://lists.ausnog.net/mailman/listinfo/ausnog _______________________________________________ AusNOG mailing list [email protected] http://lists.ausnog.net/mailman/listinfo/ausnog
