Specifications
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which it sends datagrams because of 
congestion. 
Redirect  Informs the host of a preferred route. 
Time exceeded  Indicates that the Time-to-Live (TTL) of 
an IP datagram has expired. 
Parameter Problem  Informs that host that there is a problem 
in one the ICMP parameter. 
Timestamp Request  Information that is from the ICMP data 
packet. 
Information Request  Information that is from the ICMP data 
packet. 
Information Reply  Information that is from the ICMP data 
packet. 
IGMP Types 
:  This IP protocol is used to establish host memberships in particular 
multicast groups on a single network. The mechanisms of the 
protocol allow a host to inform its local router, using Host 
Membership Reports. 
Host Membership 
Report 
Information that is from the IGMP data 
packet. 
Host Membership 
Query 
Information that is from the IGMP data 
packet. 
Leave Host 
Message 
Information that is from the ICMP data 
packet. 
Source IP  :  This parameter allows you to specify workstation(s) generating 
the data packets. Users can either set a single IP address or set a 
range of IP addresses. 
Destination 
IP 
: This parameter lets you specify the set of workstations that 
receive the data packets. Users can either set a single IP address 
or set a range of IP addresses. 
Source Port  :  You can control requests for using a specific application by 
entering its port number here. Users can either set a single port 
number or a range of port numbers. 
Destination 
Port 
:  This parameter determines the application from the specified 
destination port. Users can either set a single port number or a 
range of port numbers. 
Check 
Options 
: This parameter refers to the options in the packet header. The 
available selection options are abbreviated as follows: 
SEC – Security 
LSRR – Loose Source Routing 










