Verifying Your Installation - Cisco 1801 Quick Start Manual

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Verifying Your Installation

You can verify that you have correctly installed your router by checking the LEDs as described in Table 1.
Table 1 LEDs That Verify Installation
LED Meaning
SYS OK Steady green—Router has successfully booted up and the software is functional.
Blinking green—Router is booting or in ROM monitor mode.
CD Steady green—DSL connection established.
Off—No DSL connection established.
LPBK Steady green—Router DSL interface is in loopback mode.
Off—Router DSL interface is operating in normal mode.
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POE Off—Inline power supply not installed.
Steady green—Inline power supply OK.
Amber—Power denied.
FE 0–8 Steady green—Ethernet link is established.
Blinking green—Activity on the Ethernet link.
Off—No link.
LINK Steady green—ISDN S/T connection established.
Off—No ISDN S/T connection established.
B1 Blinking green—Activity on first B channel.
Off—No activity on first B channel.
B2 Blinking green—Activity on second B channel.
Off—No activity on second B channel.
PPP Steady green—At least one PPP connection established.
Off—No PPP link established.
VPN Steady green—At least one VPN tunnel established.
Off—No VPN tunnel established.
CF Blinking green—CompactFlash memory being accessed. Do not remove CompactFlash memory.
Off—CompactFlash memory is not being accessed. It is safe to remove CompactFlash memory.
1. Inline power is a field-upgradable option only. It is not installed by default.
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