2020-3-15 · 它的包格式与 Destionation Unreachable Message 相同，这里不再赘述. 各字段的意义及其值： Type：4 Code: 0 描述 当网管或者目标主机没有足够的 buffer 来处理对应的数据包时，就会丢弃数据包并发送此 ICMP 报文 Redirect Message 各字段的意义及其值：

RFC 792 - Internet Control Message Protocol 2020-6-21 · The redirect message advises the host to send its traffic for network X directly to gateway G2 as this is a shorter path to the destination. The gateway forwards the original datagram's data to its internet destination. For datagrams with the IP source route options and the gateway address in the destination address field, a redirect message is GitHub - quantumsheep/node-icmp: Internet Control … ICMP.host: string. The requested HOST (can be an IP) ICMP.ip: string. The requested IP, when host parameter is given to the constructor, the DNS will be resolved to get this IP adress. ICMP.open: boolean. This property will be true or false, depending on the ping response. ICMP.type: string. ICMP response type, will be one from this array: The TCP/IP Guide - ICMPv4 Redirect Messages Table 93: ICMP Redirect Message Interpretation Codes . Code Value. Message Subtype. Meaning. 0. Redirect Datagrams For The Network (Or Subnet) Redirect all future datagrams sent not only to the device whose address caused this Redirect, but also datagrams sent to all other devices on the network (or subnet) where that device is located.(This code is now obsolete; see the note that follows this

Mar 07, 2005 · ICMP redirect wasn' t invented for nothing :). Here' s a short explanation of ICMP redirect: Redirect Redirect requests data packets be sent on an alternative route. ICMP Redirect is a mechanism for routers to convey routing information to hosts. The message informs a host to update its routing information (to send packets on an alternate route).

Jul 09, 2020 · Redirect Message : 138: Router Renumbering : 139: ICMP Node Information Query : 140: ICMP Node Information Response : 141: Inverse Neighbor Discovery Solicitation Message : 142: Inverse Neighbor Discovery Advertisement Message : 143: Version 2 Multicast Listener Report : 144: Home Agent Address Discovery Request Message

2020-1-1 · 1 简介. 本文包含日志的参数介绍、产生原因、处理建议等，为用户进行系统诊断和维护提供参考。 除了 H3C MER 系列路由器

Source Redirect Message: If a packet goes from sender to receiver then if there is an alternate route which is better than the current route then it is supposed to send the ICMP message for redirecting the path of the packet. Applications Of ICMP(Internet Control Message Protocol) : Internet Control Message Protocol（インターネット制御通知プロトコル、ICMP）とは、通信処理で使われるプロトコルのひとつで、Internet Protocolのデータグラム処理における誤りの通知や通信に関する情報の通知などのために使用される。 Table 93: ICMP Redirect Message Interpretation Codes . Code Value. Message Subtype. Meaning. 0. Redirect Datagrams For The Network (Or Subnet) Redirect all future datagrams sent not only to the device whose address caused this Redirect, but also datagrams sent to all other devices on the network (or subnet) where that device is located. An ICMP message that informs, among others things, the inaccessibility that specific components (network, protocol, port, host) in the field “code” have with routing problems or firewall blocking. 5 137 Redirect Message 0–3 ICMP Redirect Example (2) When A wants to send a message to the Campus Net, it sends it to the default router (R2) R2 forwards the message to R1 R1 LAN1 LAN2 2 CS Net To: csgate.csc.vill.edu A 20 ICMP Redirect Example (3) R2 also sends an ICMP redirect message to A, telling it to use R1 for connections to csgate.vill.edu R1 LAN1 LAN2 2 CS Net ICMP Redirect message explained with an example. There are two routers connected to the Ethernet network segment 192.168.10.0/24. Interface 192.168.10.1 of Router 1 is the default gateway for all the devices in that network segment.