Hi, On 23.11.2016 10:00, Daniel Walker wrote: > Hi, > > On 22.11.2016 13:37, Christian Fischer wrote: >> did not report the service or the UDP port at all? You can see in a >> hosts details (after the scan has finished) which open TCP and UDP ports >> where identified. > > It did not report the UDP port at all. In the host details, I have 0 > open UDP ports as well as 0 open TCP ports (expected, as the Port List > did not contain any TCP ports). > >> Somehow the firewall might block / limit the requests from the scanning >> machine. > I agree. However, the thing I don't understand: why does nmap find the > open port wheras OpenVAS does not? In case the firewall would limit > the requests, I would expect that nmap cannot detect the open port > too.
one explanation would be that the firewall is causing a long running UDP scan (UDP scans are known to take a quite long time). If the nmap scanning process from within OpenVAS is timing out you won't get the open port back to OpenVAS. Regards, -- Christian Fischer | PGP Key: 0x54F3CE5B76C597AD Greenbone Networks GmbH | http://greenbone.net Neuer Graben 17, 49074 Osnabrück, Germany | AG Osnabrück, HR B 202460 Geschäftsführer: Lukas Grunwald, Dr. Jan-Oliver Wagner _______________________________________________ Openvas-discuss mailing list [email protected] https://lists.wald.intevation.org/cgi-bin/mailman/listinfo/openvas-discuss
