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Paradyne CSU User Manual

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C. Router CLI Commands, Codes, and Designations
9128-A2-GB20-80
September 2002
C-31
Protocol and Port Designations
The following tables are used for filtering.
ICMP Designations
Use the Internet Control Management Protocol (ICMP) designations in 
, when specifying a specific ICMP message to be filtered. 
Table C-15. ICMP Designations (1 of 2) 
Type
Code
ICMP Message
Description
0
0
echo-reply
Echo (ping) reply 
All 3
n = Destination unreachable
3
0
net-unreachable
Network unreachable
3
1
host-unreachable
Host unreachable
3
2
protocol-unreachable
Protocol unreachable
3
3
port-unreachable
Port unreachable
3
4
packet-too-big
Fragmentation needed and do not 
fragment (DF) bit set
3
5
source-route-failed
Source route failed
3
6
network-unknown
Destination network unknown
3
7
host-unknown
Destination host unknown
3
8
host-isolated
Source host isolated
3
9
dod-net-prohibited
Destination network admin prohibited
3
10
dod-host-prohibited
Destination host admin prohibited
3
11
net-tos-unreachable
Network unreachable for TOS (Type 
of Service)
3
12
host-tos-unreachable
Host unreachable for TOS
3
13
Administratively-prohibited
Communication admin. prohibited by 
filtering
3
14
host-precedence-unreachable
Host precedence violation
3
15
precedence-unreachable
Precedence cutoff in effect
4
0
source-quench
Source quench (flow control)