On Wed, 15 Feb 2006, KrishnaMohan wrote:
Hello,
I'd like to write a sample plugin which provides info about all open ports
similar to portscan.
I have used open_sock_tcp to know the status of a tcp port. However, i
couldn't use open_sock_udp b'cos it never fails. I also tried
get_udp_port_state() but in vain, always return success.
Can you plz tell me how can i know open udp ports (any) on the target. Is
there any function exists or any logic?
UDP port scanning is unreliable. It is not enough to rely on ICMP_PORT_UNREACH
messages to know when a UDP port is open or closed. There are many
cases where certain operating systems and/or firewalls block or limit ICMP error
messages.
--
- Josh
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