I'm testing turning on Windows Firewall and I have logging enabled to log drops. I'm seeing a lot of broadcast UDP traffic on ports 137 and 138 being dropped that is coming from other workstations on the same network segment. I've already configured DHCP to set the NETBIOS setting to...
Enable the UDP Broadcast Relay service. If checked, enabled instances will be active. Track CARP Status Tracks the CARP status of the selected CARP VIP. The service will only run when the selected VIP is in the MASTER state. Configured Instances¶ ID The instance ID. Port UDP port being ...
533/UDPnetwall, For Emergency Broadcasts 540/TCPUUCP (Unix-to-Unix Copy Protocol) 542/TCP,UDPcommerce (Commerce Applications) 543/TCPklogin, Kerberos login 544/TCPkshell, Kerberos Remote shell 546/TCP,UDPDHCPv6客户端 547/TCP,UDPDHCPv6服务器 ...
广播地址ip:QHostAddress::Broadcast 例子:mSocket->writeDatagram(ui->textEdit->toPlainText().toUtf8(),QHostAddress::Broadcast,6677); 好了,单播、组播和广播的区别应该都了解了,那么我们就来看发送端(udpsend.cpp)的具体代码: #include "udpsend.h" #include "ui_udpsend.h" UdpSend:: UdpSend(QWid...
netwall, For Emergency Broadcasts 540/TCP UUCP (Unix-to-Unix Copy Protocol) 542/TCP,UDP commerce (Commerce Applications) 543/TCP klogin, Kerberos login 544/TCP kshell, Kerberos Remote shell 546/TCP,UDP DHCPv6客户端 547/TCP,UDP DHCPv6服务器 548/TCP AFP (Apple Filing Protocol) 550/UDP new...
1.1.3 udp-helper broadcast-map udp-helper broadcast-map命令用来配置广播转组播中继转发。 undo udp-helper broadcast-map命令用来取消广播转组播中继转发。 【命令】 udp-helper broadcast-map multicast-address [ acl acl-number ] undo udp-helper broadcast-map multicast-address 【缺省情况】 未配置广播转组播...
配置如下：RTA (config) # interface e3RTA (config-if) # ip directed-broadcast你就可以实现UDP广播...
The undo ip udp-helper port disable command specifies the UDP ports to which UDP broadcast packets are relayed. By default, the switch relays broadcast packets destined for ports 37, 49, 53, 69, 137, and 138. Format ip udp-helper port disable { port-number | dns | netbios-ds | netbi...
· udp-helper broadcast-map 1.1.4 udp-helper port udp-helper port命令用来配置需要中继转发的报文的目的UDP端口。 undo udp-helper port命令用来取消已配置的需要中继转发的报文的目的UDP端口。 【命令】 udp-helper port { port-number | dns | netbios-ds | netbios-ns | tacacs | tftp | time } und...
137/TCP,UDP NetBIOS NetBIOS Name Service 官方 138/TCP,UDP NetBIOS NetBIOS Datagram Service 官方 139/TCP,UDP NetBIOS NetBIOS Session Service 官方 143/TCP,UDP IMAP4 (Internet Message Access Protocol 4) - used for retrieving E-mails 官方 ...