Hi Sorin It could be 135 The "end-point mapper". RPC services are assigned other ports dynamically. When trying to connect to a service, you go through this mapper to discover where it is located. The process works the same as on the UNIX RPC portmapper. A big difference is that a lot of services run on top of named pipes, which don't have a specific port. To my knowledge 137 is the important one for Netbios datagrams used for Network Neighbourhood but you have that open so.... Cheers Dan -----Original Message----- From: Sorin Srbu [mailto:Sorin.Srbu@xxxxxxxxxxxxx] Sent: 08 September 2004 13:19 To: Windows2000 Mailing List Subject: [windows2000] Adding firewall to xp-box Hi list, I used an old PII/266 to install Smoothwall (which is running linux, yes I know...) for protecting my admin winxp-box. After setting upp rules to allow for DNS-connections and dito for our DCc, it now seems like it's working fine. Except for one thing - I can't browse our domain/network using "My Network Places". Mapping drives etc works fine, but one only thing doesn't. Would anybody know why? Are particular ports associated with browsing a network, as I opened ports 389 (to the DCs), ports 137-138 (for other non-DCs i have mapped), port 53 (to the uni AD-DNSes). Anything else I need to open to allow for network browsing?? TIA. BW, Sorin > Sorin Srbu, Systems Engineer Web: http://www.farmfak.uu.se/organisk/ > Dept of Medicinal Chemistry, Phone: +46 (0)18-4714482 >> 3 signals >> GSM > Div of Org Pharm Chem, Mobile Phone: +46 (0)701-718023 > Box 574, Uppsala University, Fax: +46 (0)18-4714474 > SE-751 23 Uppsala, Sweden Visit: BMC, Husargatan 3, D5:512b > > Public PGP key available on request. > > () ASCII ribbon campaign - Against html E-mail > /\ > > Harmless tagline follows: > > BOFH excuse follows: NOTICE: alloc: /dev/null: filesystem full ******************************************************** This Weeks Sponsor StressedPuppy.com Games Feeling stressed out? Check out our games to relieve your stress. http://www.StressedPuppy.com ******************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm Visit the new FDL web - site designed to serve you better- http://www.fdl.co.uk This message has been sent from Fuerst Day Lawson Ltd and confirms that the email has been scanned and to the best of our knowledge is free from virus infection. The unauthorised use, disclosure, forwarding or copying of this message and any attachments is strictly prohibited. If you have received this message in error, please email moderator@xxxxxxxxx This message and any attachments, which are confidential and may be privileged, are for the use of the addressee(s) only. The views and opinions expressed in this email message are the author's own and may not reflect the views and opinions of Fuerst Day Lawson Ltd. ******************************************************** This Weeks Sponsor StressedPuppy.com Games Feeling stressed out? Check out our games to relieve your stress. http://www.StressedPuppy.com ******************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm