Category:Cisco 800 Series Routers

C

• [+] Cisco 801 ISDN Router
• [+] Cisco 802 IDSL Router
• [+] Cisco 802 ISDN Router
• [+] Cisco 803 ISDN Router
• [+] Cisco 804 IDSL Router
• [+] Cisco 804 ISDN Router
• [+] Cisco 805 Serial Router
• [+] Cisco 806 Broadband Router

C cont.

• [+] Cisco 811 ISDN Router
• [+] Cisco 813 ISDN Router
• [+] Cisco 815 Integrated Services Router
• [+] Cisco 826 ADSL Router
• [+] Cisco 827 ADSL Router
• [+] Cisco 827 H ADSL Router
• [+] Cisco 827-4V ADSL Router
• [+] Cisco 828 G.SHDSL Router
• [+] Cisco 831 Ethernet Broadband Router

C cont.

• [+] Cisco 836 ADSL over ISDN Broadband Router
• [+] Cisco 837 ADSL Broadband Router
• [+] Cisco 851 Integrated Services Router
• [+] Cisco 857 Integrated Services Router
• [+] Cisco 871 Integrated Services Router
• [+] Cisco 876 Integrated Services Router
• [+] Cisco 877 Integrated Services Router
• [+] Cisco 878 Integrated Services Router

5

• 5-in-1 EIA/TIA-232 Assembly and Pinouts
• 5-in-1 V.35 Assembly and Pinouts
• 5-in-1 X.21 Assembly and Pinouts

A

• A Catalyst 3750 series switch that runs Cisco IOS system software reloads with the "Debug Exception (Could be NULL pointer dereference)" error message in the logs
• A Catalyst 4500 or 4000 Series Switch reports packet loss and generates error message "SYS-4-P2 WARN: 1/Astro (mod/port) - timeout occurred"
• A T1 and E1 combination port adapter does not show up in the show run or show version command output due to the card type command not being configured
• A router produces error messages followed by the SYS-6-BOOT MESSAGES Messages above this line are from the boot loader informational message at bootup
• An HSRP duplicate IP address message "HSRP-4-DUPADDR" appears on the device console
• Auxiliary Port, Console Port, And Adapter Pinouts For Cisco 1000, 1600, 2500, 2600, And 3600 Series Routers

B

• Back up and Restore Configuration Files
• Basic Router Configuration using SDM
• Buffer Tuning for all Cisco Routers

C

• CAB-232 MT and CAB-232 FC EIA/TIA-232 Serial Cable Specifications
• CAB-25AS-MMOD Adapter Technical Specifications
• CAB-449 MT and CAB-449 FC EIA/TIA-449 Serial Cable Specifications
• CAB-530 MT Serial Cable Specifications
• CAB-X21 MT and CAB-X21 FC Serial Cable Specifications
• Cabling Guide for Console and AUX Ports
• Can I poll "no buffers" on a router?
• Can a 871 router can be configured for LWAPP mode with a 4400 controller
• Capturing Text Output from Hyperterminal
• Catalyst 4500 Series Switches that run Cisco IOS software display the C4K SWITCHINGENGINEMAN-3-PACKETMEMORYERROR2: Multiple Errors in Packet Memory 21 error message
• Catalyst 6500 Series Switches that run CatOS software display the SYS-1-MOD SEQMISMATCH:error message.
• Catalyst switch running CatOS getting the error message SPANTREE-7-MSGAGEEXPIRY: Msg Age timer expired on port dec/chars in vlan dec
• Cisco 2800 Series Routers crash with SYS-2-MALLOCFAIL Memory fragmentation No Alternate pool errors
• Cisco 800 Series Routers
• Cisco 827 Router Configuration Frequently Asked Questions
• Cisco 827 Router Frequently Asked Questions
• Cisco Cable Product Numbers, Part Numbers, and Descriptions
• Cisco IOS Certificate Enrollment Using Enhanced Enrollment Commands Configuration Example
• Cisco IOS Software Upgrade Procedure for Cisco 801, 802, 803, 804, and 805 Series Routers
• Cisco Secure Desktop (CSD) on IOS Configuration Example using SDM
• Client adapter causes Windows to shut down
• Clientless SSL VPN (WebVPN) on Cisco IOS with SDM Configuration Example
• Configuring CPE Back-to-Back Through G.SHDSL Ports
• Configuring DN-Based Crypto Maps for VPN Device Access Control
• Configuring IOS-to-IOS IPSec Using AES Encryption
• Configuring IPSec - Router to PIX
• Configuring IPSec Between a Cisco IOS Router and a Cisco VPN Client 4.x for Windows Using RADIUS
• Configuring IPSec Between a Cisco IOS Router and a Cisco VPN Client 4.x for Windows Using RADIUS for User Authentication
• Configuring IPSec Router-to-Router, Pre-shared, NAT Overload Between Private Networks
• Configuring Network Address Translation and Static Port Address Translation to Support an Internal Web Server
• Configuring Router to VPN Client, Mode-Config, Wild-Card Pre-Shared Key with NAT
• Configuring Router-to-Router IPsec (Pre-shared Keys) on GRE Tunnel with IOS Firewall and NAT
• Configuring a Cisco 827 Router Using PPPoA With CHAP and PAP
• Configuring a Cisco 827 Router With IRB and NAT Using RFC1483 Bridging
• Configuring a Cisco 827 Router With NAT, a DHCP Server, and Easy IP Using PPPoA (aal5mux ppp)
• Configuring a Router IPsec Tunnel Private-to-Private Network with NAT and a Static
• Configuring a Router-to-Router LAN-to-LAN Tunnel with a Router Initiating IKE Aggressive Mode
• Configuring an IPsec Router Dynamic LAN-to-LAN Peer and VPN Clients
• Configuring the Cisco 827 Router as a PPPoE Client With NAT
• Creating Core Dumps
• Customer receives the error message "RMON-5-FALLINGTRAP: Falling trap is generated" SNMP trap in Catalyst switches running Cisco IOS®

D

• DMVPN and Easy VPN Server with ISAKMP Profiles Configuration Example
• DSL Modem/Router Interface Pinouts and Status LED Descriptions
• Dealing with mallocfail and High CPU Utilization Resulting From the "Code Red" Worm
• Dealing with mallocfail and High CPU Utilization Resulting From the Code Red Worm
• Dynamic LAN-to-LAN VPN between Cisco IOS Routers Using IOS CA on the Hub Configuration Example

E

• EIGRP Message Authentication Configuration Example
• Encrypt Pre-shared Keys in Cisco IOS Router Configuration Example
• Error message received "MLS-4-MOVEOVERFLOW:Too many moves, stop MLS for 5 sec" in Catalyst 5000 series switches.
• Error messages "SYS-4-NVLOG:SYNDIAGS:Module 1 detected Local Bus Stall" and "SYS-4-NVLOG:SYNDIAGS: Local Test Mode encounters Minor hardware problem in Module" received in Catalyst 6500 Switches running CatOS software
• Error messages and statistics Out of window collisions
• Error opening tftp 255.255.255.255 network config Error Message Prevention
• Error opening tftp://255.255.255.255/network config Error Message Prevention
• Error reading: A TFTP copy operation times out when the Cisco IOS Software file size is over 16MB
• Ethernet 100BaseTX and 10BaseT Cables: Guidelines and Specifications
• Ethernet AUI Port, Pinouts, and Cable Specifications

F

• FAQ on Cisco 1800 Series ISR.
• FTP fails, and the "Protocol error" is received when there is an attempt to transfer an image from an FTP server to the Cisco Catalyst 4000/4500 Series switches
• Flash memory problem: Received Open device slotd: failed (bad device info block) error message
• Functionality details of the Advanced Interface Module for VPN

G

• GRE over IPSec with EIGRP to Route Through a Hub and Multiple Remote Sites Configuration Example

H

• HSRP standby IP address is reported as a duplicate IP address and the user receives the "STANDBY-3-DUPADDR" error message
• Hardware Troubleshooting Index Page
• High CPU Utilization in Exec and Virtual Exec Processes
• How To Copy a System Image from One Device to Another
• How to Choose a Cisco IOS Software Release
• How to Configure a LAN-to-LAN IPSec Between a Router and a PIX Using Digital Certificates
• How to Connect a KG-84A to a Cisco Serial Interface
• How to Protect Your Network Against the Nimda Virus
• How to Upgrade from ROMmon Using the Boot Image
• How to allow IDS to SSH to a device
• How to change the session timeout value in a Wireless LAN Controller in order to reauthenticate the Controller/LAP with a Radius server for any specified time period
• How to choose and install software for the 801, 802, 803, 804, 805, 806, 826, 827, 828, 831, 836, SOHO70, 1000, 1400, 1600, 1600-R, 1700, 2500, 2600, 3000, 3600, 3700, 4000, 4500, 4700, AS5100, AS5200, AS5300 and MC3810 products
• How to choose and install software for the RP and RSP7000, 7100, 7200, 7300, 7400, 7500, 7600, 10000 (ESR), 12000, uBR71XX, uBR72XX and uBR10000p
• How to configure 802.1X authentication based on the MAC address
• How to configure ASA 5510 to check Microsoft Windows Active Directory attributes
• How to configure Console and Telnet passwords on a Catalyst 6500 series switch running CatOS
• How to configure SSH (Secure Shell) on Catalyst switches
• How to configure VLANs on Integrated Services Routers (ISRs)
• How to configure VLANs with the Catalyst fixed configuration switches
• How to configure a Cisco IOS® gateway for Cisco Unity version 3.1(2) IP inbound faxing
• How to configure a new VPN Client group on the PIX Firewall
• How to configure an EtherChannel between a Catalyst switch and a Cisco router
• How to configure per-VC hold queues to reduce or eliminate output drops associated with an ATM PVC
• How to configure the Cisco IOS® router to use local authentication for Telnet inside access and TACACS+ authentication for Secure Shell (SSH) outside access
• How to configure the called party number for the national plan type in Cisco IOS® voice gateways
• How to configure to hide the SSID from the GUI on the Cisco IOS-based access point
• How to create a wireless connection with the 870 series Wireless ISR
• How to delete files from the Flash of a PIX 500 series firewall with software version 7.x ?
• How to download firmware and drivers for Cisco legacy 4800 wireless client cards
• How to perform password recovery for Catalyst 1900 series switch
• How to poll "queue limit drops" on a router

I

• IDS signature S226 or S227 update fails with the execUpgradeSoftware Cannot parse the current config for the component signatureDefinition error message, and the instance sig0 in the model 4215 with version 5.1
• IOS Easy VPN Remote Hardware Client to a PIX Easy VPN Server Configuration Example
• IOS IPSec NAT Transparency with VPN Client Configuration Example
• IOS Router to Pass a LAN-to-LAN IPSec Tunnel via PAT Configuration Example
• IPSec/GRE with NAT on IOS Router Configuration Example
• IPsec VPN tunnel traffic stops intermittently with 800 and 1800 series Routers
• Initial IPX Configuration and Troubleshooting Between Cisco Router and Novell Netware Server

L

• LAN-to-LAN IPsec Tunnel Between Two Routers Configuration Example
• LAN-to-LAN IPsec Tunnel Between a Cisco VPN 3000 Concentrator and Router with AES Configuration Example
• LEDs are lit after powering on the router, but nothing appears on the console
• LINK-4-ERROR:char is experiencing errors error message on a Catalyst switch running Cisco IOS Software.
• Less Common Types of System Crashes
• Let

L cont.

• Let's Connect:Your Serial Cable Guide
• Low call success rate due to modem problems

M

• MGMT-5-LOGIN FAIL:User failed to log in from Console messages appear when Telnetted into a switch with a modem attached to the console port due to misconfiguration on the modem
• MICA modems have very high incoming call failure rates due to incompatibility between the client and MICA firmware versions
• Management interface in the ASA does not allow the traffic to pass through it and the ASA-4-418001 Through-the-device packet to/from management-only network is denied tcp src mgmtx.x.x.x dst mgmt y.y.y.y. error message appears
• Maximum Number of Interfaces and Subinterfaces for Cisco IOS Platforms: IDB Limits
• Modems are frequently marked as being in BAD state and you need to reload the router to bring the modems back online with the default modemcap
• Most Common L2L and Remote Access IPSec VPN Troubleshooting Solutions
• Multilink PPP for DDR basic configuration and limiting the number of minimum and maximum links
• Multlink PPP from a Windows PC (using multiple modems) fails. Only one call is established and the error message "733 multilink" is displayed.

N

• NAT pool does not work. The debug ip nat command displays a NAT: translation failed (A), dropping packet s=1.1.1.1 d=2.2.2.2 error message
• No connectivity to next hop on a PPP over Frame Relay link due to PPP problems
• No link to an Ethernet device

O

• Outgoing calls to PSTN or PBX network through a Cisco IOS® gateway fail with a re-order tone before the complete number is dialed

P

• PIX 6.x : Dynamic IPsec Between a Statically addressed PIX Firewall and the dynamically addressed IOS Router with NAT Configuration Example
• PIX 6.x: Dynamic IPsec Between a Statically Addressed IOS Router and the Dynamically Addressed PIX Firewall with NAT Configuration Example
• PIX/ASA 7.x Security Appliance to an IOS Router LAN-to-LAN IPsec Tunnel Configuration Example
• PIX/ASA 7.x and IOS: VPN Fragmentation
• Password Recovery Procedure for the Cisco 801, 802, 803, 804, 805, 811, and 813 Series Routers
• Password Recovery Procedure for the Cisco 806, 826, 827, 828, 831, 836, and 837 Series Routers
• Password Recovery Procedures
• Performance Tuning Basics
• Prevent "Translating. domain server (255.255.255.255)" Messages after an Invalid Command is Entered on a Router
• Problems Caused by Simultaneous Access to Router NVRAM
• Problems with all modems marked BAD after upgrading portware to 2.9.2.0
• Processor Memory Parity Errors (PMPEs)

R

• ROMmon Recovery for the Cisco 800 Series Router
• ROMmon recovery procedure for all platforms (rommon
• Reset a Cisco Router to Factory Default Settings
• Retrieving Information from the Crashinfo File
• Router and VPN Client for Public Internet on a Stick Configuration Example
• Router boots into boot mode without any errors displayed on the console
• Router does not power and no LEDs are lit

S

• SSL VPN Client (SVC) on IOS with SDM Configuration Example
• STP error message received: ?SPANTREE-2-ROOTGUARD BLOCK: Root guard blocking port? in Cisco Catalyst switches running Cisco IOS system software
• SW-VLAN-4-BAD-STARTUP-VLAN-CONFIG-FILE: Failed to configure VLAN fromstartup-config error message received on catalyst 4000/4500 switch with supervisor module
• SegV Exceptions
• Site-to-Site Tunnel Between IOS Routers Using SEAL Sample Configuration
• Standard Break Key Sequence Combinations During Password Recovery
• Switch continually tries to load a configuration from the network and displays the "Error opening tftp://255.255.255.255/network-config (Timed out)" error message
• Switch displays switch: after a configuration change

T

• TCP and UDP Small Servers
• TCP intercept on Cisco IOS
• TFTP Server Selection and Use
• Telnet Password on Cisco Router to Avoid Error Message Configuration Example
• Telnet, Console and AUX Port Passwords on Cisco Routers Configuration Example
• The "AAAA-3-NOREG: authentication method 6 has no registry!" error message appears in Catalyst 6500 / 7600 series switches that run Cisco IOS system software
• The "C4K SWITCHINGENGINEMAN-3-TXCNTMEMORYPARITY:" error message appears in Catalyst 4500 series switches running Cisco IOS system software
• The "C4K SWITCHMANAGER-4-S2WERRORREPORT" error message appears in the logs of a Cisco Catalyst 4500 Switch, and affects the functionality of PoE line cards
• The "CPU MONITOR-6-NOT HEARD" and "CPU MONITOR-3-TIMED OUT:" error messages are displayed in the logs of a Cisco Catalyst 6500 series switch
• The "DOT1X SWITCH-5-ERR ADDING ADDRESS:" error message appears in Cisco Catalyst 3550 or 3750 series switches
• The "FM-2-TCAM MEMORY: ACL merge abandoned when merging Interface Vlan ingress ACL" error message appears in the Catalyst 6500 series switches that run Cisco IOS system software
• The "IP-3-LOOPPAK: LOOPING PACKET DETECTED AND DROPPED" error message appears on a Cisco Catalyst switch that runs Cisco IOS software
• The "IP-4-DUPADDR: Duplicate address" error message appears after the SLB redundancy is configured in Catalyst 6500 series switches running Cisco IOS
• The "MLSCEF-SP-STDBY-7-SHADOW SSRAM INCONSISTENCY:" error message is received in Catalyst 6500 series switches running Cisco IOS system software
• The "PAGP-5 orETHC-5" error messages or link flaps on a port and EtherChannel are possibly not configured on that port
• The "PLATFORM RPC-3-MSG THROTTLED" error message appears on the Cisco Catalyst 3750 switch
• The "PM SCP-SP-2-LCP FW ERR INFORM or PM SCP-SP-6-LCP FW ERR INFORM" error message appears in the logs of a Cisco Catalyst 6500 Series switch