http://tags.library.upenn.edu/url/428 PennTags Feed http://tags.library.upenn.edu/makerecord/url/428 http://tags.library.upenn.edu/makerecord/url/428 Many supposed NFS problems are really problems with the firewall. In order for your NFS server to successfully serve NFS shares, its firewall must enable the following:<br /> <ul> <li>ICMP Type 3 packets</li><li>Port 111, the Portmap daemon</li><li>Port 2049, NFS</li><li>The port(s) assigned to the mountd daemon</li> </ul>