Port 1975Cisco TCO Documentation
Port 1975 is commonly used by Cisco for their TCO (Total Cost of Ownership) documentation service, typically utilizing UDP protocol for distributing internal system information or configuration data. While it is an official port assigned to Cisco, its implementation is specific to Cisco systems and is seldom seen on public networks..
- transport
- udp
- in transit
- cleartext
- assignment
- official
- risk
- 4/10
- lookups
- 5,482
single transport
payload readable on path
registered with iana
caution
rank 878 of 993 · top 88%
Technical Details
what runs on :1975-
Cisco TCO (Documentation) is designated to facilitate internal Cisco processes related to configuration tracking, licensing, or asset management, commonly carried out within Cisco's ecosystem or supported network devices.
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The protocol predominantly utilizes UDP, enabling lightweight communication suited for fast, stateless exchanges. This service helps Cisco products to transmit data associated with device documentation, license management, and other operational metadata internally.
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Administrators in Cisco environments may encounter this port while integrating network management suites or during firmware upgrades, but it typically remains transparent to users. Since it's specific to Cisco, broader adoption or cross-platform compatibility is limited, and its appearance outside Cisco-managed infrastructure is uncommon.
Security Information
exposure of :1975risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
network services averages 3.9 across 604 ports — this one sits 0.1 above.
in transit
cleartext
credentials and payloads are readable by anyone on path
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
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Common Vulnerabilities:
- Unauthorized exposure of device management interfaces if port 1975 is unintentionally exposed to untrusted networks
- Possible exploitation through crafted UDP packets for denial-of-service (DoS) attacks
- Lack of encryption can lead to interception or spoofing of management data
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Common Mitigations:
- Restrict access to port 1975 using internal firewall rules, allowing only trusted Cisco management hosts
- Disable unused services linked to TCO documentation if not required
- Implement strong network segmentation to isolate management traffic from production networks
- Monitor for unusual traffic patterns or unauthorized scans targeting UDP port 1975
- Consider encrypting management communication channels where applicable
Related Ports
the 8 most looked-up other ports in network services — 604 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :9080 | Groove RPC | TCPUDP | Web Services | caution | 70.8k |
| :6543 | Jetnet | UDP | Network Services | caution | 65.3k |
| :5938 | TeamViewer | TCPUDP | Remote Access | caution | 65.0k |
| :8291 | Winbox MikroTik Admin | TCP | Security | caution | 62.9k |
| :3233 | WhiskerControl Protocol | TCPUDP | Network Services | caution | 61.9k |
| :3268 | Microsoft Global Catalog (GC) | TCPUDP | Security | caution | 54.6k |
| :135 | Microsoft EPMAP | TCPUDP | Security | caution | 51.9k |
| :3128 | Tatsoft Default HTTP Proxy | TCP | Web Services | caution | 46.8k |
risk mix of the 8 listed
- caution100%
0 of 8 encrypted