Manualsbrain.com
  1. Handbücher
  2. Marken
  3. Cisco
  4. Cisco Email Security Appliance X1050
  5. Fehlerbehebungsanleitung

Cisco Cisco Email Security Appliance X1050 Fehlerbehebungsanleitung

Download
Seite von 2
Feature Key Fetch Error Message Received When
Downloading Feature Keys on ESA
Document ID: 118439
Contributed by Jason Alert and Robert Sherwin, Cisco TAC Engineers.
Oct 13, 2014
Contents
Introduction
Feature Key Fetch Error Message Received When Downloading Feature Keys on ESA
Troubleshooting 
Related Information
Introduction
This document describes error messages recieved during download or update of feature keys on the Cisco
Email Security Appliance (ESA).
Feature Key Fetch Error Message Received When
Downloading Feature Keys on ESA
When users click "Check for New Keys" on the ESA to download new Feature Keys, they receive the
following error message:
 Error performing feature key fetch: I/O error opening URL '<update URL>'
This error message is non−critical and is triggered when the ESA is unable to connect to the feature key
updates server via HTTP. This is typically a result of one or more of the following problems:
Incorrect DNS settings on the appliance.
• 
Incorrect default gateway or static route on the appliance.
• 
A firewall is blocking the appliance from reaching the feature key download server.
• 
Local network routing problems.
• 
Temporary Internet routing problems.
• 
Troubleshooting 
Ping the update URL server (downloads.ironport.com):
> ping downloads.ironport.com
Press Ctrl−C to stop.
PING downloads.ironport.com (96.16.7.51): 56 data bytes
64 bytes from 96.16.7.51: icmp_seq=0 ttl=50 time=28.158 ms
64 bytes from 96.16.7.51: icmp_seq=1 ttl=50 time=27.981 ms
64 bytes from 96.16.7.51: icmp_seq=2 ttl=50 time=28.055 ms
64 bytes from 96.16.7.51: icmp_seq=3 ttl=50 time=28.013 ms
^X^C