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This chapter documents general product known issues in the Cisco 673 product line. Please refer to the Cisco 673 release notes document for a current list of product features available in the Cisco 673 you purchased.
If the WAN-LNK light does not appear "On" when you power up the modem, please wait for about 15 seconds. If after 15 seconds it does not appear on, double-check all cabling and connections. If the light does not appear at that point, please turn the power off and then on again. If the LED still does not appear lighted, please call your service representative. Should the PWR/ALARM light appear RED, please turn the power off and then on again. If the LED still appears RED, please call your service representative.
Web interface passwords can be from 1 to 7 characters in length.
Internet Explorer 2.0 from Microsoft is incompatible to use as a browser on the Cisco 673 and Cisco 7200 series routers. Therefore, Netscape 3.01 or higher or Internet Explorer 3.01 or higher are recommended for use as browsers for the Cisco Web Management Interface.
When using the serial port as your terminal connection, large amounts of serial data may overflow the serial buffer. This results in ASCII garbage appearing on the screen but does not affect performance or operation in any way. To avoid this issue, use Telnet to manage both the Cisco 673 and Cisco 7200 series routers.
RADIUS passwords must be less than or equal to 16 characters in length. RADIUS usernames may be up to 255 characters in length.
Computers running Linux without the term/termcap database installed will have trouble connecting to Cisco equipment. The message BAD ADDRESS is sometimes displayed as an error message. The user can install the term/termcap database from the Linux install disks or CD-ROM.
If you update IP addresses on many Cisco 673 routers in rapid succession using a Windows 95 PC, the ARP cache on the PC may not clear right away. This causes communication problems with subsequent Cisco 673 routers in the line. To clear the PC cache, use the following command at the MS-DOS prompt on your PC:
c:\> arp -d 192.168.0.100
This deletes the MAC address and causes IP to send an ARP request to IP address 192.168.0.100. The ARP utility comes with Windows 95 and WindowsNT, so if you don't have it in your current installation, you can install it from your original Win95 or WinNT install media.
On a busy network with many RIP broadcasts and requests, RIP traffic alone can cause the Cisco 673 to remain sufficiently active to not trigger the idle timeout. Cisco recommends that RIP be disabled if Cisco 673 idle timeouts are used.
1. If the WAN LNK LED blinks continuously and never stays solid on, the Cisco 673 never trains with the Cisco 6100 series. There are a number of reasons why this would occur:
2. If the Cisco 673 trains up and the WAN LNK LED turns off after approximately 1:45 (105 seconds) when the Cisco 673 is in routing mode, this means that the Cisco 673 is not getting the PPP requests answered by the router on the service provider's network, such as the Cisco 7200 series router. 105 seconds is the time it takes for three PPP requests to be sent from the Cisco 673, and if they are not answered by the Cisco 7200, the Cisco 673 stops sending them and the WAN LNK LED turns off. There are a number of possibilities why this would happen:
3. If the WAN LNK LED turns off after the Cisco 673 has successfully been transferring data end-to-end for some time, this means that the Cisco 673 or the Cisco 7200 might have a timeout set. There are 2 timeouts that could affect the WAN LNK LED:
4. If the WAN LNK LED goes solid for approximately four seconds and then turns off, this usually indicates a RADIUS problem. After the Cisco 673 trains and the Cisco 7200 that is being used to authenticate its PPP session is using RADIUS, then this could point to a failed RADIUS authentication. Possible reasons for a failed RADIUS authentication:
Posted: Fri Dec 17 14:33:03 PST 1999
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