Let's Reconnect, thank you for making 2022 our best year yet.

Look Back
Why can't connect by udp? — Cloud Customer Connect
You're almost there! Please answer a few more questions for access to the Applications content. Complete registration
Interested in joining? Complete your registration by providing Areas of Interest here. Register

Why can't connect by udp?

Received Response
14
Views
1
Comments

Summary:

i open udp port by firewalld, and test by iperf and udp server, but i can't get response, ACK.

but netcat tool says connection success.

Content (required):

[email protected]****:~$ sudo firewall-cmd --list-all

public

 target: default

 icmp-block-inversion: no

 interfaces: 

 sources: 

 services: dhcpv6 dhcpv6-client http https imap ldap mysql ssh

 ports: 3000/tcp 80/tcp 22/tcp 433/tcp 3001/tcp 3002/tcp 3006/tcp 3007/tcp 25565/tcp 3306/tcp 5900-5910/tcp 8000-8900/tcp 30037/tcp 24454/tcp 51820/udp 24450-24453/udp 24455-24460/udp 24454/udp 25565/udp

 protocols: 

 forward: yes

 masquerade: no

 forward-ports: 

 source-ports: 

 icmp-blocks: 

 rich rules: 


[email protected]****:~$ netstat -nul

Active Internet connections (only servers)

Proto Recv-Q Send-Q Local Address      Foreign Address     State    

Howdy, Stranger!

Log In

To view full details, sign in.

Register

Don't have an account? Click here to get started!