Shredstream Firewall Setup

Expose and verify the public UDP port used by your Shredstream destination.

Required network path

NoLimitNodes sends packets directly to the public IPv4 and UDP port that you register. Your network must route that target to the receiver.

NoLimitNodes gateway → public IPv4:UDP port → firewall or NAT → receiver socket

Host firewall example

Choose the command that matches your system. Replace 20000 with your port.

UFWbash

sudo ufw allow 20000/udp

firewalldbash

sudo firewall-cmd --permanent --add-port=20000/udpsudo firewall-cmd --reload

Cloud firewall

Create an inbound UDP rule for the configured port. V1 does not publish a fixed NoLimitNodes source-IP allowlist, so do not create a rule that depends on one.

Verify receipt

sudo tcpdump -n -i any "udp and dst port 20000"

If packet capture sees traffic but the application does not, check the bind address, container port mapping, socket buffer, and process permissions. If packet capture sees nothing, check the dashboard status, public route, security group, firewall, and NAT mapping.