Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1)

00:00:22:480 (CFG) DHCP Timeout Waiting on Server, DHCPState = INIT 00:00:38:480 (CFG) DHCP Timeout Waiting on Server, DHCPState = INIT

If the above timeout message continues to scroll by, then there is a problem contacting the DHCP server. First thing to check is that the Catalyst 6000 gateway port is in the correct VLAN. This information is in the ‘ sh port’ command from before. If the DHCP server is not on the same VLAN as the Catalyst 6000 gateway, then make sure the appropriate IP Helper addresses have been configured to forward the DHCP requests to the DHCP server. It is possible for the gateway to get stuck in the INIT state after a VLAN number change until the gateway resets. When in this state, it would not hurt to try resetting the gateway. Every time the 860 gets reset, your tracy session will be lost, so you must close your existing session and re-establish a new one by issuing the following commands:

tracy_close mod port tracy_start mod port

If all this checks out and you're still seeing the DHCPState = INIT messages, then check to see if the DHCP server is functioning correctly. If so, start a sniffer trace to see if the requests are being sent and if the server is responding or not.

Once DHCP is working correctly, the gateway will have an IP address that will allow the use of the tracy debugging utility. This utility is a built-in feature of the NMP command set for the Catalyst gateways, and available as a helper application that runs on Windows 98/NT/2000 for the standalone gateways. To use the helper application tracy utility, you need to "Connect" to the gateway by using the IP address to which it is assigned. This tracy application works on all the gateways, provides a separate trace window for each gateway (up to eight may be traced at once), and allows traces to be logged directly to a file you specify.

The next step is to verify that the TFTP server IP address was correctly provided to the gateway. This is normally provided by DHCP in either Option 66 (by name or IP address), Option 150 (IP address only), or si_addr (IP address only). If your server has multiple Options configured, si_addr will take precedence over Option 150, which will take precedence over Option 66. If Option 66 provides the DNS_NAME of the TFTP server, then the DNS server(s) IP address(es) must have been specified by DHCP, and the name entered in Option 66 must resolve to the correct TFTP server IP address. A Catalyst gateway could be configured by the NMP to disable DHCP, and the NMP operator must then enter all configuration parameters by hand at the console, including the TFTP server address.

Additionally, the gateways will always attempt to resolve the name "CiscoCM1" via DNS. If successful, the CiscoCM1 IP address will take precedence over anything the DHCP server or NMP tells it for the TFTP server address, even if the NMP has DHCP disabled.

You can check the current TFTP server IP address in a gateway by using the tracy utility. Enter the following command to get the configuration task number:

TaskID: 0

Cmd: show tl

© 2000 Cisco Systems, Inc.

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Cisco Systems 30 VIP manual Tracyclose mod port tracystart mod port
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30 VIP specifications

Cisco Systems has been a leading company in networking technology, and its suite of products is continually evolving to meet the demands of modern digital infrastructure. One of the latest introductions is the Cisco Systems 30 VIP, a highly advanced solution designed to enhance network performance and security for businesses of all sizes.

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In summary, the Cisco Systems 30 VIP represents a significant advancement in network technology with its high throughput, integrated security features, adaptability, and intelligent management capabilities. These elements combine to provide a robust solution that meets the evolving needs of modern businesses while ensuring secure and efficient operations. As organizations continue to navigate an increasingly complex digital landscape, the Cisco Systems 30 VIP offers a future-proof option designed to facilitate growth and resilience.
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