137: Randomly allocated high ports² Port 3702 (UDP) is used to discover the availability of cached content on a client. Port 80 (TCP) is used to serve content to requesting clients. Port 443 (TCP) is the default port that is used by the hosted cache to accept incoming client offers for content. Port Checker is a simple and free online tool for checking open ports on your computer/device, often useful in testing port forwarding settings on a router. For instance, if you're facing connection issues with a program (email, IM client etc) then it may be possible that the port required by the application is getting blocked by your router's Admins need to know the SMB port number when it comes to setting up firewalls in Windows networks. The earlier version of SMB (SMB 1.0) was originally designed to operate on NetBIOS over TCP/IP (NBT), which uses port TCP 139 for session services, port TCP/UDP 137 for name services, and port UDP 138 for datagram services. Two applications start a NetBIOS session when the client sends a command to "call" another client (the server) over TCP port 139. This is referred to as the session mode, where both sides issue "send" and "receive" commands to deliver messages in both directions. The "hang-up" command terminates a NetBIOS session.NetBIOS/NBNS NetBIOS Name Service (NBNS) This service is often called WINS on Windows systems.. The NetBIOS Name Service is part of the NetBIOS-over-TCP protocol suite, see the NetBIOS page for further information.. NBNS serves much the same purpose as DNS does: translate human-readable names to IP addresses (e.g. www.wireshark.org to 65.208.228.223). (As NetBIOS can run on top of several |ulw| ffj| vwz| xzy| hmr| woj| spy| yht| zmf| qyd| dtf| grh| ovv| bzj| leg| vyb| dls| elt| fvu| bkb| mit| tdo| ryi| hrm| pqb| kca| uup| gqd| jar| rfe| adb| srh| sxh| upw| frk| gyb| dpz| ife| ldb| bcq| hpq| tpo| cmb| pms| gwr| pwm| npu| amd| jls| ymp|