Port unreachable

相關問題 & 資訊整理

Port unreachable

One odd error that might be associated with a Port Unreachable message is seen when an otherwise normally operating conversation is ...,The ICMP Destination Unreachable message is sent by a router in response to a packet which it cannot forward because the destination (or next hop) is ... ,Message Type. ICMP 訊息功能. 0. Echo Reply(回應答覆). 3. Destination Unreachable(目的地無法到達). 4. Source Quench(來源抑制). 5. Redirect(改變傳輸路徑 ... , The Destination Unreachable message indicates that a frame was discarded because it could not reach its ultimate destination. This could be the ...,Ping. This mode sends a short UDP packet to the target's UDP ports and looks for an ICMP “Port Unreachable” message in response. The absence of ... , From ICMP RFC 792: If, in the destination host, the IP module cannot deliver the datagram because the indicated protocol module or process ..., 0, network unreachable, *. 1, host unreachable, *. 2, protocol unreachable, *. 3, port unreachable, *. 4, fragmentation needed but don't-fragment ..., 注意这里的描述,并不是端口没有开启服务,而是没有开启UDP服务,如果开启了TCP服务,照样也会回port unreachable。 3:Linux内核对UDP处理 ..., 2 = protocol unreachable;. 3 = port unreachable;. 4 = fragmentation needed and DF set;. 5 = source route failed. 总结:如果碰到 ..., 平常我们网管用wireshark等工具抓包时,经常发现网络中会出现大量的Destination Host Unreachable或Destination Port Unreachable,一般都 ...

相關軟體 Wireshark 資訊

Wireshark
Wireshark 是世界上最先進的 Windows 和 Unix 免費網絡協議分析儀,也是許多行業和教育機構的事實上(通常是法律上)的標準。 Wireshark 是由全世界的網絡專家撰寫的,是開源的力量的一個例子。通過它,專業用戶可以完全分析他們的網絡連接,查看捕獲數據的詳細分類,過濾它可以更容易地識別您想要仔細檢查的流程,使用插件分析數據,創建處理數據的腳本,捕獲 VoIP 呼叫或 USB&n... Wireshark 軟體介紹

Port unreachable 相關參考資料
icmp port unreachable error message - Stack Overflow

One odd error that might be associated with a Port Unreachable message is seen when an otherwise normally operating conversation is ...

https://stackoverflow.com

ICMP type 3, Destination unreachable message

The ICMP Destination Unreachable message is sent by a router in response to a packet which it cannot forward because the destination (or next hop) is ...

http://www.networksorcery.com

ICMP 通訊協定 - 翻轉工作室

Message Type. ICMP 訊息功能. 0. Echo Reply(回應答覆). 3. Destination Unreachable(目的地無法到達). 4. Source Quench(來源抑制). 5. Redirect(改變傳輸路徑 ...

http://www.tsnien.idv.tw

Internet Control Message Protocol (ICMP) has a variety of ...

The Destination Unreachable message indicates that a frame was discarded because it could not reach its ultimate destination. This could be the ...

https://www.liveaction.com

Unreachable Message - an overview | ScienceDirect Topics

Ping. This mode sends a short UDP packet to the target's UDP ports and looks for an ICMP “Port Unreachable” message in response. The absence of ...

https://www.sciencedirect.com

Why ICMP Destination Port Unreachable error messeage is ...

From ICMP RFC 792: If, in the destination host, the IP module cannot deliver the datagram because the indicated protocol module or process ...

https://networkengineering.sta

[TCPIP Illustrated] ICMP - 小信豬的原始部落

0, network unreachable, *. 1, host unreachable, *. 2, protocol unreachable, *. 3, port unreachable, *. 4, fragmentation needed but don't-fragment ...

http://godleon.blogspot.com

关于UDP接收icmp端口不可达(port unreachable)_Protocol ...

注意这里的描述,并不是端口没有开启服务,而是没有开启UDP服务,如果开启了TCP服务,照样也会回port unreachable。 3:Linux内核对UDP处理 ...

https://blog.csdn.net

出现Destination Unreachable的解决办法 - CSDN博客

2 = protocol unreachable;. 3 = port unreachable;. 4 = fragmentation needed and DF set;. 5 = source route failed. 总结:如果碰到 ...

https://blog.csdn.net

抓包出现的Destination Host Unreachable和Port Unreachable ...

平常我们网管用wireshark等工具抓包时,经常发现网络中会出现大量的Destination Host Unreachable或Destination Port Unreachable,一般都 ...

http://www.dnsoso.com