HRESULTget_IcmpTypesAndCodes( BSTR *icmpTypesAndCodes ); 参数 icmpTypesAndCodes 返回值 无 备注 此属性是可选的。 另请参阅INetFwRule接口页的“备注”部分中介绍的更改属性的限制。 icmpTypesAndCodes参数是 ICMP 类型和代码的列表,用分号分隔。 “*”表示所有 ICMP 类型和代码。
ICMP message types and codes for IPv6 IPv6 uses 256 ICMP messages. It divides them into two separate sets: error messages and information messages. For error messages, it uses a type value less than 128, and for information messages, it uses a type value greater than 128. In other words...
Here are some common ICMP message types and codes: Echo Request (Type 8, Code 0) – Used by the ping command to test if a host is reachable. Echo Reply (Type 0, Code 0) – Sent by a host to respond to an Echo Request message. ...
Instead of using ports, ICMP relies on message types and codes to distinguish between different types of control and error messages. Each ICMP message has a unique Type field and a Code field: Type Field Specifies the general type of ICMP message, such as "Echo Request" or "Destination Unrea...
The device supports the configuration of ICMP message forwarding based on an ICMP name or specified type and code. Table 1-12 lists the supported ICMP names. For details about the ICMP messages corresponding to the types and codes, see Table 1-12. Table 1-12 ICMP names supported by the d...
Optional and valid only for ICMP and ICMPv6. Use to specify a particular ICMP type and code as defined in: - ICMP Parameters - ICMPv6 Parameters If you specify ICMP or ICMPv6 as the protocol but omit this object, then all ICMP types and codes are allowed. If you do provide this object...
There is no port number associated with ICMP packets. ICMP uses types and codes. The type and code combination identifies the specific message being received. The network software itself interprets all ICMP messages. Today we are going to show you if ICMP has a port number with an example. ...
So type and code are somehow "swapped". The change came when I switched the netflow versions on router b) Maybe someone with a Cat65 can confirm that? Note: a nexus 7000 with nextflow version 5 does not give any codes or types as far as I see. ...
37#defineICMP_ADDRESS 17 /* Address Mask Request */38#defineICMP_ADDRESSREPLY 18 /* Address Mask Reply */39#defineNR_ICMP_TYPES 18404142/*Codes for UNREACH. 这里就是code*/43#defineICMP_NET_UNREACH 0 /* Network Unreachable */44#defineICMP_HOST_UNREACH 1 /* Host Unreachable */45#define...
Reply */#endif#ifndef ICMP_ADDRESS#define ICMP_ADDRESS 17/* Address Mask Request */#endif#ifndef ICMP_ADDRESSREPLY#define ICMP_ADDRESSREPLY 18/* Address Mask Reply */#endif#ifndef NR_ICMP_TYPES#define NR_ICMP_TYPES 18#endifCode:/* Codes for Type3 UNREACH. */#ifndef ICMP_...