Specifications

OmniAccess Reference: AOS-W System Reference
xiv Part 031652-00 May 2005
Wireless LAN Monitoring . . . . . . . . . . . . . . . . 576
Debug Information . . . . . . . . . . . . . . . . . . . . 576
Creating Custom Logs
. . . . . . . . . . . . . . . . . . 577
Reports . . . . . . . . . . . . . . . . . . . . . . . 577
Example Report: Rogue APs . . . . . . . . . . . . 578
AP Reports
. . . . . . . . . . . . . . . . . . . . . . 579
Custom Reports . . . . . . . . . . . . . . . . . . . 580
Chapter 26 Firewall Logging . . . . . . . . . . . . . . . . . 583
Log Entries (alphabetical) . . . . . . . . . . . . . . . . 583
Chapter 27 Troubleshooting AOS-W
Environments. . . . . . . . . . . . . . . . . 587
Basic Connectivity . . . . . . . . . . . . . . . . . . . . 587
General
. . . . . . . . . . . . . . . . . . . . . . . . 589
Client cannot find AP . . . . . . . . . . . . . . . . 589
Client finds AP, but cannot associate . . . . . . . 592
Client associates to AP, but higher-layer
authentication fails
. . . . . . . . . . . . . . . . 595
Client associates/authenticates, but has
no network connectivity
. . . . . . . . . . . . . 595
Client initially has network connectivity,
then loses connectivity . . . . . . . . . . . . . 596
Client has network connectivity, then loses
wireless association
. . . . . . . . . . . . . . . 597
Client experiences poor performance . . . . . . . 598
Troubleshooting Access/Grid Points
. . . . . . . . . . 599
Authentication . . . . . . . . . . . . . . . . . . . . . . 603
802.1x . . . . . . . . . . . . . . . . . . . . . . . . . 603
VPN
. . . . . . . . . . . . . . . . . . . . . . . . . . 606
Sample Packet Captures. . . . . . . . . . . . . . . . . 610
Broadcast Probe Request Frame . . . . . . . . . . 610
FCS - Frame Check Sequence
. . . . . . . . . . . 611
Specific Network Probe Request Frame . . . . . . 611
Beacon Frame. . . . . . . . . . . . . . . . . . . . . 613
Probe Response Frame
. . . . . . . . . . . . . . . 615
802.11 Authenticate Frame . . . . . . . . . . . . . 617
802.11 Authenticate Response (Success) . . . . . 618
Association Request Frame (includes WPA)
. . . 619
Association Response . . . . . . . . . . . . . . . . 622
Packet Sniffing . . . . . . . . . . . . . . . . . . . . . . 623
Packet Capture
. . . . . . . . . . . . . . . . . . . . 624
SESSION MIRRORING . . . . . . . . . . . . . . . . 625
Chapter 28 Diagnostic Tools. . . . . . . . . . . . . . . . . 627