Cisco Router 850 Series Software Configuration Guide

							 
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APPENDIXD
Common Port Assignments
Ta b l e D-1 lists currently assigned Transmission Control Protocol (TCP) port numbers. To the extent 
possible, the User Datagram Protocol (UDP) uses the same numbers.
Ta b l e D-1 Currently Assigned TCP and UDP Port Numbers 
PortKeywordDescription
0—Reserved
1–4—Unassigned
5RJERemote job entry
7ECHOEcho
9DISCARDDiscard
11USERSActive users
13DAYTIMEDaytime
15NETSTATWho is up or NETSTAT
17QUOTEQuote of the day
19CHARGENCharacter generator
20FTP-DATAFile Transfer Protocol (data)
21FTPFile Transfer Protocol
23TELNETTerminal connection
25SMTPSimple Mail Transport Protocol
37TIMETime
39RLPResource Location Protocol
42NAMESERVERHostname server
43NICNAMEWho is
49LOGINLogin Host Protocol 
53DOMAINDomain name server
67BOOTPSBootstrap Protocol Server
68BOOTPCBootstrap Protocol Client
69TFTPTrivial File Transfer Protocol
75—Any private dial-out service 
						

							 
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Appendix D      Common Port Assignments
  
77—Any private RJE service
79FINGERFinger
95SUPDUPSUPDUP Protocol
101HOST NAMENetwork interface card (NIC) 
hostname server
102ISO-TSAPISO-Transport Service Access Point 
(
TSAP)
103X400X400
104X400-SNDX400-SND
111SUNRPCSun Microsystems Remote 
Procedure Call 
113AUT HAuthentication service
117UUCP-PATHUNIX-to-UNIX Copy Protocol 
(UUCP) Path Service
119NNTPUsenet Network News Transfer 
Protocol
123NTPNetwork Time Protocol
126SNMPSimple Network Management 
Protocol
137NETBIOS-NSNetBIOS name service
138NETBIOS-DGMNetBIOS datagram service
139NETBIOS-SSNNetBIOS session service
161SNMPSimple Network Management 
Protocol
162SNMP-TRAPSimple Network Management 
Protocol traps
512rexecUNIX remote execution (control)
513TCP—rlogin 
UDP—rwho
TCP—UNIX remote login
UDP—UNIX broadcast name 
service
514TCP—rsh 
UDP—syslog
TCP—UNIX remote shell
UDP—system log
515PrinterUNIX line printer remote spooling
520RIPRouting Information Protocol 
525TimedTime server 
Table D-1 Currently Assigned TCP and UDP Port Numbers (continued)
Port Keyword Description 
						

							 
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INDEX
Symbols
-? command     3
? command     4, 3
A
AAL     6
AAL3/4     6
AAL5     6
abbreviating commands     6
access groups     3
access lists
applying to interfaces     4
configuration commands     2
configuring for firewalls     3, 2
description     11
ACK bits     11
Address Resolution Protocol
See ARP
ADSL
configuring     6
ordering     4
overview     1
troubleshooting     2
aggregator, configuring     20
ARP     2
Asymmetric Digital Line Subscriber Line
See ADSL
ATM
errors, displaying     6
events, displaying     7
interface, configuring basic parameters     7
interface, configuring for PPPoA     5
overview     5
packets, displaying     8
PVC encapsulation types     6
queues     10
troubleshooting commands     2 to 9
ATM adaptation layer
See AAL
ATM interface
See ATM
audience, user     11
authentication protocols
See PPP authentication protocols
AutoSecure     2
auxiliary port, for dial backup     9
B
backup interfaces, for dial backup     1
b command     3
b flash command     3
boot commands     3
bridging, configuring     9, 4
broadcast intervals, RIP     3
C
CAR     9
caution, described     13
CBAC firewall, configuring     3
CBWFQ     9
CHAP     4
Cisco IOS Firewall IDS     4 
						

							 
Index
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Cisco IOS queues     10
class-based weighted fair queuing
See CBWFQ
command conventions     13
command-line access to router
configuration example     11
configuring     9
command modes     2 to 4
commands
-?     3
?     4
abbreviating     6
access list     2
ATM troubleshooting     2 to 9
b     3
b flash     3
boot     3
completing     4
confreg     6
context     9
copy running-config startup-config     7
copy tftp flash     3
debug atm     6
debug atm errors     6
debug atm events     7
debug atm packet     8
dir device     3
finding available     4
flowcontrol     2
frame     9
help     3
help with     4
i     3
k     9
meminfo     9
permit     11
ping atm interface     3
privileged EXEC, accessing     5
redisplaying     4
reset     3
ROM monitor     2 to 3
ROM monitor debugging     8, 9
show atm interface     5, 6
show controllers dsl     8
show dsl interface atm     7
show interface     3
stack     9
sysret     9
tftpdnld     3, 5
undoing     6
xmodem     8
command variables
listing     4
TFTP download     4
committed access rate
See CAR
configuration changes
making     5
saving     12, 7
configuration examples
command-line access     11
DHCP server     4
dynamic routes     14
EIGRP     15
PPPoA with NAT     11
PPPoE with NAT     9
simple firewall     5
static route     12
VPN with IPSec and GRE     9
VPN with IPSec tunnel     11
wireless LAN     6
configuration prerequisites     4
configuration register
changing     10
changing from ROM monitor     6
value, resetting     12
configuring
ATM WAN interface     7 
						

							 
Index
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basic router parameters     1
bridging     9
command-line access     9
DHCP server     1
dial backup     1
dialer interface     5
dynamic routes     12, 14
Easy VPN     1
EIGRP, IP     14 to 15
Fast Ethernet LAN interfaces     6
Fast Ethernet WAN interface     6
firewall     1 to 5
global parameters     5
GRE tunnel     8
group policy     5, 4
IKE policy     4, 3
inspection rules for firewalls     3
IP EIGRP     14 to 15
IPSec tunnel     1
loopback interface     8 to 9
NAT     9
PPPoE with NAT     1, 2
RIP     13
router from PC     1
static routes     11
VLANs     1
VPDN group number     2
VPNs     1, 2
WAN interface     6
your network, preparing for     4
confreg command     6
connections, setting up     4
console download     7 to 8
console port, for dial backup     9
context command     9
conventions, command     13
copy running-config startup-config command     7
copy tftp flash command     3
corporate network, connecting to     4
crypto map, applying to interface     9, 7
D
debug atm commands     6
debug atm errors command     6
debug atm events command     7
debug atm packet command     8
debug commands, ROM monitor     8, 9
default configuration, viewing     2
DHCP
configuring DHCP server     2
IP address assignment     1
DHCP and Easy IP (Phase 2)     8
DHCP server
configuration example     4
configuring router as     1
verify configuration     4
dial backup
configuring     1, 9, 16
dialer watch     4
floating static routes     2
dialer interface
configuring     5, 3
description     6
dialer watch     4, 7
dir device command     3
disaster recovery     3 to 6
DSL signaling protocol     6
Dynamic Host Configuration Protocol
See DHCP
dynamic routes
configuration example     14
configuring     12, 14
E
Easy IP 
						

							 
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Phase 1 overview     8
Phase 2 overview     8
Easy VPN
configuration tasks     3
remote configuration     10
verify configuration     11
EIGRP
configuration example     15
configuring     14
overview     2, 3
enable password
recovering     12
setting     5
enable secret password
recovering     12
setting     5
encapsulation     6
Enhanced Interior Gateway Routing Protocol
See EIGRP
error messages, configuration     6
error reporting, ROM monitor     8
errors, ATM, displaying     6
Ethernet     5
events, ATM, displaying     7
experience, user     11
extended access list, overview     11
F
Fast Ethernet LAN interfaces, configuring     6
Fast Ethernet WAN interface, configuring     6, 4
filtering
See access lists
firewalls
access list configuration     3, 2
applying access lists to interfaces     4
applying inspection rules to interfaces     4
configuration example     5
configuration tasks     2
configuring inspection rules     3
floating static routes
description     7
for dial backup     2
flowcontrol command     2
fragmentation, PPP     9
frame command     9
G
G.SHDSL
ordering     4
overview     2
global configuration mode
entering     5
summary     2, 3
global parameters, setting up     5
GRE tunnel
configuration example     9
configuring     8
group policy, configuring     5, 4
H
handshake
defined     2
three-way     4
two-way     4
help command     3
help with commands     4
hop count, defined     3
I
i command     3
IKE policy, configuring     4, 3
inspection rules
applying to interfaces     4 
						

							 
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configuring     3
interface configuration mode     3
interface port labels (table)     1
interleaving, PPP     9
Internet connection, setting up     4
IP, overview     2
IPCP     8
IP Precedence
with CBWFQ     10
overview     9
IP routing, setting up     4
IPSec tunnel
configuration example     11, 9
configuring     1
crypto method     8, 6
transforms and protocols     7, 5
ISDN
configuring the BRI     17
configuring the peer router     20
S/T port for dial backup     16
ISDN interface, configuring     17
ISDN peer router, configuring     20
K
k command     9
L
LAN with DHCP and VLANs, configuring     1 to 8
LCP     4
LFQ     10
line configuration mode     4
Link Control Protocol
See LCP
LLC     6
loopback interface, configuring     8 to 9
low latency queuing
See LFQ
M
meminfo command     9
metrics
EIGRP     3
RIP     3
mode configuration, applying to crypto map     6
modes
See command modes
N
NAT
configuration example     9, 11
configuring with PPPoA     9
configuring with PPPoE     1, 7
overview     7 to 8
See also Easy IP (Phase 1)
NCP     4
network address translation
See NAT
network configuration, preparing for     4
Network Control Protocols
See NCP
network protocols     2
network scenarios
See configuration examples
nonvolatile RAM
See NVRAM
note, described     13
NVRAM, saving changes to     7
O
overloading, defined     8 
						

							 
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P
packets, ATM, displaying     8
PAP     4
parameters, setting up global     5
Password Authentication Protocol
See PAP
password protection     5
passwords
recovery     9 to 12
resetting     12
setting     5
permanent virtual circuit
See PVC
permit command     11
ping atm interface command     3
Point-to-Point Protocol
See PPP
policy-based routing     9
policy lookup, enabling     6, 4, 5
port assignments, common     1 to 2
port labels for interfaces     1
port numbers currently assigned     1 to 2
PPP
authentication protocols     3 to 4
fragmentation     9
interleaving     9
overview     3
PPP/Internet Protocol Control Protocol
See IPCP
PPPoA, configuration example     11
PPPoE
client     1
configuration example     9
configuring     1
verifying your configuration     10
prerequisites, for configuration     4
privileged EXEC commands, accessing     5
privileged EXEC mode     2, 3
protocols
ATM     5
Ethernet     5
network     2
network interface     5 to 6
PPP authentication     3 to 4
routing overview     2 to 3
PVC
encapsulation types     6
overview     6
Q
QoS parameters     9 to 10
queues, ATM     10
R
radio station subinterfaces, configuring     5
related documents     14
remote access VPN     1
remote management, configuring     9, 16
reset command     3
resetting
configuration register value     12
passwords     12
router     11
RIP
configuring     13
overview     2 to 3
ROM monitor
commands     2 to 3
debug commands     8, 9
entering     1
exiting     10
root radio station, configuring     2
router configuration mode     4
Routing Information Protocol 
						

							 
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See RIP
routing protocol overview     2 to 3
RST bits     11
RSVP     10
S
saving configuration changes     12, 7
scenarios, network
See configuration examples
security authentication protocols     4
security features, configuring     1 to 4
settings
router default     2
standard VT-100 emulation     2
SHDSL
configuring     7
overview     2
troubleshooting     2
show atm interface command     5, 6
show controllers dsl command     8
show dsl interface atm command     7
show interface command     3
site-to-site VPN     1
software, upgrading methods     9
stack command     9
static routes
configuration     11
configuration example     12
configuring     11
symmetrical high-data-rate digital subscriber line
See G.SHDSL
sysret command     9
T
TACACS+     5
TCP/IP-oriented configuration     1
TCP port numbers     1 to 2
terminal emulation software     1
tftpdnld command     3, 5
TFTP download     3 to 6
See also console download
Timesaver, defined     13
transform set, configuring     7
translation
See NAT
triggered extensions to RIP     3
troubleshooting commands, ATM     2 to 9
U
UDP port numbers     1 to 2
undoing commands     6
upgrading software, methods for     9
User Datagram Protocol
See UDP
user EXEC mode     2, 3
V
variables, command listing     4
VC     6
verify
DHCP server configuration     4
Easy VPN configuration     11
PPPoE with NAT configuration     10
VLAN configuration     6
viewing default configuration     2
virtual configuration register     6
virtual private dialup network group number, 
configuring
     2
VLANs
configuring     1
verify configuration     6
VPDN group number, configuring     2
VPNs 
						

							 
Index
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configuration example     11
configuration tasks     3, 2
configuring     1, 4
W
WAN interface, configuring     6, 4
wireless LAN configuration example     6
X
xmodem command     8