Specifications
Table Of Contents
- Contents
- Preface
- Getting Started
- Basic Router Configuration
- Interface Port Labels
- Viewing the Default Configuration
- Information Needed for Configuration
- Configuring Basic Parameters
- Configuring Static Routes
- Configuring Dynamic Routes
- Configuring Enhanced IGRP
- Basic Router Configuration
- Configuring Your Router for Ethernet and DSL Access
- Sample Network Deployments
- Configuring PPP over Ethernet with NAT
- Configuring PPP over ATM with NAT
- Configuring a LAN with DHCP and VLANs
- Configuring a VPN Using Easy VPN and an IPSec Tunnel
- Configure the IKE Policy
- Configure Group Policy Information
- Apply Mode Configuration to the Crypto Map
- Enable Policy Lookup
- Configure IPSec Transforms and Protocols
- Configure the IPSec Crypto Method and Parameters
- Apply the Crypto Map to the Physical Interface
- Create an Easy VPN Remote Configuration
- Verifying Your Easy VPN Configuration
- Configuration Example
- Configuring VPNs Using an IPSec Tunnel and Generic Routing Encapsulation
- Configuring a Simple Firewall
- Configuring a Wireless LAN Connection
- Sample Configuration
- Configuring Additional Features and Troubleshooting
- Additional Configuration Options
- Configuring Security Features
- Configuring Dial Backup and Remote Management
- Troubleshooting
- Reference Information
- Cisco IOS Software Basic Skills
- Concepts
- ROM Monitor
- Common Port Assignments
D-1
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
APPENDIX
D
Common Port Assignments
Table 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
Port Keyword Description
0 — Reserved
1–4 — Unassigned
5 RJE Remote job entry
7 ECHO Echo
9 DISCARD Discard
11 USERS Active users
13 DAYTIME Daytime
15 NETSTAT Netstat
17 QUOTE Quote of the day
19 CHARGEN Character generator
20 FTP-DATA File Transfer Protocol (data)
21 FTP File Transfer Protocol
23 TELNET Terminal connection
25 SMTP Simple Mail Transport Protocol
37 TIME Time
39 RLP Resource Location Protocol
42 NAMESERVER Hostname server
43 NICNAME Who is
49 LOGIN Login Host Protocol
53 DOMAIN Domain name server
67 BOOTPS Bootstrap Protocol Server
68 BOOTPC Bootstrap Protocol Client
69 TFTP Trivial File Transfer Protocol
75 – Any private dial-out service