Port 8017Cisco CloudSec

Cisco CloudSec uses UDP 8017 for encrypted dataplane traffic between participating Cisco network devices.

transport
udp

single transport

in transit
encrypted

payload protected on the wire

assignment
official

registered with iana

risk
2/10

safe

lookups
0

rank 993 of 5,977 · top 17%

Technical Details

what runs on :8017

UDP 8017 is assigned for Cisco CloudSec dataplane traffic. In a CloudSec deployment, participating Cisco endpoints use it to carry protected network traffic; it is not a user-facing request/response service. The wire format and session details are Cisco-specific, and publicly available information does not establish a general-purpose handshake or framing specification. It should be present only where CloudSec is configured on the relevant Cisco equipment.

Security Information

exposure of :8017

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

security averages 3.0 across 418 ports — this one sits 1.0 below.

in transit

encrypted

payloads are protected on the wire

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

CloudSec traffic is intended to be protected in transit, but that does not make the listener appropriate for unrestricted internet exposure. Permit UDP 8017 only between expected CloudSec peers and according to the network design; an unexpected listener merits investigation. It is rare in internet-wide scans, and there is no basis here to identify a broadly deployed public-facing service or a known-exploited vulnerability on this port.

the 8 most looked-up other ports in security — 418 ports carry that label.

risk mix of the 8 listed

  • caution100%

2 of 8 encrypted