- Patch VPN gateways quickly: they are a top initial access target.
- Use certificates or MFA rather than shared secrets.
- Investigate unexpected tunnels and proxies: they are also attacker tools.
Port 3277: AWG Proxy
Port 3277 is assigned by IANA to awg-proxy (AWG Proxy).
3277
How awg-proxy works
VPN, tunnels & proxiesTraffic is wrapped in a tunnel between the two ends, so the network in between only sees the tunnel.
- Transport
- TCP · UDP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
- VPN, tunnels & proxies
Is port 3277 dangerous?
We have no specific security note for port 3277. Its risk depends on the program actually listening on it. General advice for vpn, tunnels & proxies services:
IANA registry entries for port 3277
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| awg-proxy | 3277 | TCP, UDP | AWG Proxy | - | - |
// source: IANA service name and port number registry
Which program uses port 3277, and is it reachable?
Linux
sudo ss -ltnup 'sport = :3277' # process listening on 3277
sudo lsof -nP -i :3277macOS
sudo lsof -nP -i :3277
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3277 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 3277 netstat -ano | findstr :3277
From another machine
nmap -p 3277 -sV <host> sudo nmap -sU -p 3277 <host> nc -zv <host> 3277
Block it in the firewall
sudo ufw deny 3277/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 3277" -Direction Inbound -LocalPort 3277 -Protocol TCP -Action Block # Windows
What is port 3277 used for?
Port 3277 is assigned by IANA to awg-proxy (AWG Proxy).
Is port 3277 TCP or UDP?
Port 3277 is registered for TCP and UDP.
Is it safe to open port 3277?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Patch VPN gateways quickly: they are a top initial access target.
How do I check if port 3277 is open?
On Linux run "ss -ltnup 'sport = :3277'", on macOS "lsof -nP -i :3277", and on Windows "netstat -ano | findstr :3277" to see the local process. From another machine, "nmap -p 3277 <host>" shows whether it is reachable.