552
C
39: C
HAPTER
ONFIGURING
F
IREWALL
Protocol
Mnemonic Symbol
UDP
biff
bootpc
bootps
discard
dns
dnsix
echo
mobilip-ag
mobilip-mn
nameserver
netbios-dgm
netbios-ns
netbios-ssn
ntp
rip
snmp
snmptrap
sunrpc
syslog
tacacs-ds
talk
tftp
time
who
Xdmcp
As for the ICMP, you can specify the ICMP packet type. You can use a number
(ranging 0 to 255) or a mnemonic symbol to specify the packet type.
Meaning and Actual Value
Mail notify (512)
Bootstrap Protocol Client (68)
Bootstrap Protocol Server (67)
Discard (9)
Domain Name Service (53)
DNSIX Securit Attribute Token Map (90)
Echo (7)
MobileIP-Agent (434)
MobilIP-MN (435)
Host Name Server (42)
NETBIOS Datagram Service (138)
NETBIOS Name Service (137)
NETBIOS Session Service (139)
Network Time Protocol (123)
Routing Information Protocol (520)
SNMP (161)
SNMPTRAP (162)
SUN Remote Procedure Call (111)
Syslog (514)
TACACS-Database Service (65)
Talk (517)
Trivial File Transfer (69)
Time (37)
Who(513)
X Display Manager Control Protocol (177)