Day 18 2 serial point to-point encapsulation
Download as PPT, PDF0 likes348 views
The document outlines the configuration of serial point-to-point connections, specifically focusing on HDLC and PPP encapsulation. It details how to enable encapsulation, set hostnames, configure authentication protocols, and verify configurations on routers. Additionally, it describes the elements of PPP and provides troubleshooting guidance for authentication configurations.
Day 18 2 serial point to-point encapsulation
- 1. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-1 Establishing Serial Point-To-Point Connections Configuring Serial Point-To-Point Encapsulation
- 2. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-2 Outline • Overview • HDLC Encapsulation Configuration • PPP Layered Architecture • PPP Configuration • PPP Session Establishment • PPP Authentication Protocols • PPP Authentication Configuration • Serial Encapsulation Configuration Verification • PPP Authentication Configuration Troubleshooting • Summary
- 3. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-3 Router(config-if)# encapsulation hdlc • Enables HDLC encapsulation • Uses the default encapsulation on synchronous serial interfaces Configuring HDLC Encapsulation
- 4. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-4 Layering PPP Elements • PPP = Data link with network layer services
- 5. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-5 PPP Authentication Protocols • Passwords sent in clear text • Peer in control of attempts
- 6. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-6 Challenge Handshake Authentication Protocol • Hash values, not actual passwords, are sent across the link. • The local router or external server is in control of attempts.
- 7. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-7 Configuring PPP and Authentication Overview
- 8. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-8 Router(config-if)# encapsulation ppp • Enables PPP encapsulation Configuring PPP
- 9. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-9 Router(config)# hostname name • Assigns a host name to your router Router(config)# username name password password • Identifies the username and password of remote router Configuring PPP Authentication
- 10. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-10 Router(config-if)# ppp authentication {chap | chap pap | pap chap | pap} • Enables PAP or CHAP authentication Configuring PPP Authentication (Cont.)
- 11. © 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—5-11 Router# show interface s0 Serial0 is up, line protocol is up Hardware is HD64570 Internet address is 10.140.1.2/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255 Encapsulation PPP, loopback not set, keepalive set (10 sec) LCP Open Open: IPCP, CDPCP Last input 00:00:05, output 00:00:05, output hang never Last clearing of "show interface" counters never Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 38021 packets input, 5656110 bytes, 0 no buffer Received 23488 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 38097 packets output, 2135697 bytes, 0 underruns 0 output errors, 0 collisions, 6045 interface resets 0 output buffer failures, 0 output buffers swapped out 482 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up Verifying the HDLC and PPP Encapsulation Configuration