Juniper Networks J-Series - Manual (Page 13)

Pinging Hosts from the J-Web Interface .......................................................216
Using the J-Web Ping Host Tool ............................................................216
Ping Host Results and Output Summary ...............................................218
Checking MPLS Connections from the J-Web Interface ................................219
Using the J-Web Ping MPLS Tool ...........................................................219
Ping MPLS Results and Output ..............................................................222
Tracing Unicast Routes from the J-Web Interface ........................................223
Using the J-Web Traceroute Tool ...........................................................223
Traceroute Results and Output Summary .............................................225
Capturing and Viewing Packets with the J-Web Interface ............................226
Using J-Web Packet Capture ..................................................................226
Packet Capture Results and Output Summary .......................................229
Using CLI Diagnostic Commands ................................................................230
Pinging Hosts from the CLI ...................................................................230
Checking MPLS Connections from the CLI ............................................232
Pinging RSVP-Signaled LSPs and LDP-Signaled LSPs ......................233
Pinging Layer 3 VPNs .....................................................................234
Pinging Layer 2 VPNs .....................................................................235
Pinging Layer 2 Circuits ..................................................................236
Tracing Unicast Routes from the CLI .....................................................237
Using the traceroute Command ......................................................237
Using the traceroute monitor Command ........................................238
Tracing Multicast Routes from the CLI ..................................................240
Using the mtrace from-source Command .......................................241
Using the mtrace monitor Command .............................................243
Displaying Log and Trace Files from the CLI .........................................244
Monitoring Interfaces and Traffic from the CLI .....................................245
Using the monitor interface Command ..........................................245
Using the monitor traffic Command ...............................................246
Chapter 13 Configuring Packet Capture 253
Packet Capture Terms .................................................................................253
Packet Capture Overview ............................................................................254
Packet Capture on Router Interfaces .....................................................255
Firewall Filters for Packet Capture ........................................................255
Packet Capture Files .............................................................................256
Analysis of Packet Capture Files ............................................................256
Before You Begin .........................................................................................257
Configuring Packet Capture with a Configuration Editor ..............................257
Enabling Packet Capture (Required) ......................................................257
Configuring Packet Capture on an Interface (Required) .........................259
Configuring a Firewall Filter for Packet Capture (Optional) ...................259
Disabling Packet Capture ......................................................................261
Deleting Packet Capture Files ................................................................261
Changing Encapsulation on Interfaces with Packet Capture Configured ......262
Verifying Packet Capture .............................................................................263
Displaying a Packet Capture Configuration ...........................................263
Displaying a Firewall Filter for Packet Capture Configuration ................264
Verifying Captured Packets ...................................................................264
Table of Contents ■ xiii
Table of Contents