whatportis.com
suggest an edit →

Port 12975LogMeIn Hamachi

LogMeIn Hamachi is a popular virtual private network (VPN) application that allows users to create secure, encrypted peer-to-peer connections over the internet. It uses dedicated mediation servers to establish and manage VPN tunnels between clients. Port 12975 is typically used by the Hamachi client to communicate with the mediation server, facilitating network creation and management. If communication via this port is unavailable, Hamachi may attempt to use alternative ports or fallback to SSL protocols to maintain connectivity..

inRemote AccessNetwork Services
transport
tcp

single transport

in transit
cleartext

payload readable on path

assignment
unofficial

used by convention

risk
4/10

caution

lookups
14,108

rank 251 of 993 · top 25%

Technical Details

what runs on :12975

LogMeIn Hamachi is a hosted VPN service that enables users to securely extend LAN-like networks over the public internet. It achieves this by establishing virtual connections between multiple computers, making them appear as if they were on the same local network. This is particularly useful for gaming, file sharing, and remote access scenarios.

Port 12975 is primarily utilized by the Hamachi client to communicate with LogMeIn's central mediation server (such as bibi.hamachi.cc). This server acts as a broker to help peers discover each other and establish direct or relayed connections. Hamachi also attempts to use port 32976 if 12975 is unavailable, and as a further fallback, it will try to connect via HTTPS on TCP port 443. This multi-port strategy enhances reliability in diverse network environments.

The communication over port 12975 typically includes client registration, session establishment, status updates, and NAT traversal processes. Though traffic on this port is not necessarily encrypted by default, the application strives to maintain privacy and connectivity through additional SSL channels when direct connections are not possible.

Security Information

exposure of :12975

risk score

4/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

remote access averages 4.0 across 110 ports — this one sits level with it.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

unofficial

used by convention, not registered — what answers here varies by deployment

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

Common vulnerabilities:

  • Since port 12975 is unofficial and not encrypted by default, it may be susceptible to traffic interception or manipulation if attackers have access to the local or intermediate networks.
  • Malicious actors with network access might perform man-in-the-middle attacks or attempt to spoof Hamachi mediation servers.
  • If Hamachi client or server software is outdated, it can be vulnerable to exploits affecting its VPN implementation or mediation components.

Common mitigations:

  • Limit exposure by blocking inbound connections to port 12975 unless explicitly required.
  • Keep Hamachi software updated to patch vulnerabilities and improve security mechanisms.
  • Use network perimeter controls like firewalls and intrusion detection systems to monitor and restrict VPN-related traffic.
  • Employ VPN services supporting strong encryption protocols by default or configure Hamachi to utilize encrypted fallback methods whenever possible.
  • Restrict VPN usage to known authorized endpoints and avoid untrusted networks when possible.

Related Ports

all 110 in remote access →

the 8 most looked-up other ports in remote access — 110 ports carry that label.

portservicerisk
:8000Intel Remote Desktop / Alternate HTTP Portsafe
:8888D2GS Admin Consolecaution
:8881Atlasz Secure Servercaution
:5938TeamViewercaution
:8291Winbox MikroTik Admincaution
:8008IBM HTTP Server Admincaution
:135Microsoft EPMAPcaution
:23Telnetcaution

risk mix of the 8 listed

  • safe13%
  • caution88%

0 of 8 encrypted