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07-09-2018 02:40 PM
Hi,
Since upgrade to PANOS 8.1.2 RADIUS (for firewall administration) tries to connect to the IPv6 address of the Microsoft NPS server:
2018-07-10 09:33:14.305 +1200 debug: pan_make_radius_request_buf(pan_authd_radius_prot.c:384): RADIUS request type: PAP
2018-07-10 09:33:14.307 +1200 Warning: _handle_nas_ip(pan_authd_radius_prot.c:114): fe80::d6f4:beff:fec3:8beb%eth0: pan device nas IPv6 not found
2018-07-10 09:33:14.307 +1200 debug: pan_make_radius_request_buf(pan_authd_radius_prot.c:436): Optional attribute NAS-IP "fe80::d6f4:beff:fec3:8beb%eth0" is not in request, which is ok since NAS-Identifier "RADIUS-FirewallAdmins" is in it
2018-07-10 09:33:14.307 +1200 debug: _create_rw_sock(pan_authd_conn_mgmt.c:1446): create a UDP socket: 13
2018-07-10 09:33:14.307 +1200 Error: _create_rw_sock(pan_authd_conn_mgmt.c:1490): Retry 1: connect to server 2402:9900:311:1244:5003:9543:48d4:2af3:1812: errno=101(Network is unreachable)
2018-07-10 09:33:15.308 +1200 Error: _create_rw_sock(pan_authd_conn_mgmt.c:1490): Retry 2: connect to server 2402:9900:311:1244:5003:9543:48d4:2af3:1812: errno=101(Network is unreachable)
2018-07-10 09:33:16.309 +1200 Error: _create_rw_sock(pan_authd_conn_mgmt.c:1490): Retry 3: connect to server 2402:9900:311:1244:5003:9543:48d4:2af3:1812: errno=101(Network is unreachable)
2018-07-10 09:33:17.310 +1200 Error: _create_rw_sock(pan_authd_conn_mgmt.c:1497): reached max number of retries (3) to connect to server 2402:9900:311:1244:5003:9543:48d4:2af3:1812
The result is the request times out as the server does not respond on IPv6.
I can't see how to stop this behaviour, or what is causing it.
Note: If I change the RADIUS profile to an IP address, rather than a FQDN it works fine. If I perform a ping of the FQDN, from the MGT interface on the PAN, it resolves correctly to the IPv4 address so it does not seem to be a DNS issue.
Note: We have not configured granular service routes, all services use the MGT interface.
Any ideas what is causing this, and how I can stop it trying to use IPv6?
Cheers,
Shannon
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