Custom Ip Protocol Services; Adding An Ip Protocol Service - D-Link NetDefend DFL-210 User Manual

3.2.4. Custom IP Protocol Services

• Source Quenching: the source is sending data too fast for the receiver, the buffer has filled up.
• Time Exceeded: the packet has been discarded as it has taken too long to be delivered.
3.2.4. Custom IP Protocol Services
Services that run over IP and perform application/transport layer functions can be uniquely
identified by IP protocol numbers. IP can carry data for a number of different protocols. These
protocols are each identified by a unique IP protocol number specified in a field of the IP header, for
example, ICMP, IGMP, and EGP have protocol numbers 1, 2, and 8 respectively.
NetDefendOS supports these types of IP protocols by using the concept of Custom IP Protocol
Services. A Custom IP Protocol service is a service definition giving a name to an IP protocol
number. Some of the common IP protocols, such as IGMP, are already pre-defined in the
NetDefendOS system configuration.
Similar to the TCP/UDP port ranges described previously, a range of IP protocol numbers can be
used to specify multiple applications for one service.
Example 3.9. Adding an IP Protocol Service
This example shows how to add an IP Protocol Service, with the Virtual Router Redundancy Protocol.
CLI
gw-world:/> add Service ServiceIPProto VRRP IPProto=112
Web Interface
1. Go to Objects > Services > Add > IP protocol service
2. Specify a suitable name for the service, for example VRRP
3. Enter 112 in the IP Protocol control
4. Optionally enter Virtual Router Redundancy Protocol in the Comments control
5. Click OK
Note
The currently assigned IP protocol numbers and references are published by the
Internet Assigned Numbers
http://www.iana.org/assignments/protocol-numbers.
Authority (IANA)
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Chapter 3. Fundamentals
and can be found at