Matching Icmp Message Types; A, February; Table 7-6 Icmp Message Types - Nortel Web OS Switch Software Application Manual

Matching ICMP Message Types

Internet Control Message Protocol (ICMP) is used for reporting TCP/IP processing errors.
There are numerous types of ICMP messages, as shown in
can be filtered using the proto icmp option, by default, the Web switch ignores the ICMP
message type when matching a packet to a filter. To perform filtering based on specific ICMP
message types, ICMP message type filtering must be enabled.
Web OS software supports filtering on the following ICMP message types:

Table 7-6 ICMP Message Types

Type # Message Type
0
3
4
5
8
9
10
11
12
13
14
15
16
17
18

212777-A, February 2002

Description
ICMP echo reply
echorep
ICMP destination unreachable
destun
ICMP source quench
quench
ICMP redirect
redir
ICMP echo request
echoreq
ICMP router advertisement
rtradv
ICMP router solicitation
rtrsol
ICMP time exceeded
timex
ICMP parameter problem
param
ICMP timestamp request
timereq
ICMP timestamp reply
timerep
ICMP information request
inforeq
ICMP information reply
inforep
ICMP address mask request
maskreq
ICMP address mask reply
maskrep
Web OS 10.0 Application Guide
Table 7-6. Although ICMP packets
Chapter 7: Filtering
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