SG Ports Services and Protocols - Port 253 tcp/udp information, official and unofficial assignments, known security risks, trojans and applications use.

This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for bidirectional traffic. TCP usually uses port numbers that match the services of the corresponding UDP implementations, if they exist, and vice versa.

2016年3月30日 · Guaranteed communication over TCP port 253 is the main difference between TCP and UDP. UDP port 253 would not have guaranteed communication as TCP. UDP on port 253 provides an unreliable service and datagrams may arrive duplicated, out of …

Port 253 can be used with both TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) transport protocols, depending on the specific requirements of the SLP implementation. When using TCP, SLP establishes a reliable, connection-oriented communication channel between the client and the server.

2024年12月21日 · 文章浏览阅读760次，点赞25次，收藏13次。在R3上设置扩展ACL，应用到接口G0/0，编号是100，拒绝所有网络中心以外的计算机ping网络中心内部设备，其它任何服务不受影响。）创建两个standby备份组，编号分别为1和2，组1的IP为202.206.95.254，组2的IP为202.206.95.253。

The GRC port database does not currently contain any specific information about this service port. (See below for a discussion of "service" ports.) Related Ports: -

2022年9月5日 · 交换机的访问控制列表（ACL）匹配项包括生效时间段、IP承载的协议类型、源/目的IP地址及其通配符掩码、源/目的MAC地址及其通配符掩码、VLAN编号及其掩码、TCP/UDP端口号、TCP标志信息和IP分片信息。 通过这些匹配项，可以精细化控制网络流量，实现不同时间段和不同条件下的策略设置。 ACL的生效时间段可以规定ACL规则在何时生效，从而实现在不同的时间段设置不同的策略。 周期时间段：以星期为参数来定义时间范围，表示规则以一周为周期（ …

The closest known TCP ports before 253 port :256 (Checkpoint Firewall-1 state table sync), 256 (RAP), 256 (RAP), 257 (Check Point FW-1/VPN-1 log transfer), 257 (Secure Electronic Transaction),

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A description of port 253. check port open. Copyright ©2013 - 2025 by Is My Port Open.All rights reserved.