Border Gateway Protocol (BGP)
XXX - add a brief BGP description here
XXX - add a brief description of BGP history
XXX - Add example traffic here (as plain text or Wireshark screenshot).
The BGP dissector is (fully functional, partially functional, not existing, ... whatever the current state is). Also add info of additional Wireshark features where appropriate, like special statistics of this protocol.
Using Wireshark to decode BGP
(XXX add links to preference settings affecting how BGP is dissected).
Example capture file
XXX - Add a simple example capture file to the SampleCaptures page and link from here. Keep it short, it's also a good idea to gzip it to make it even smaller, as Wireshark can open gzipped files automatically.
A complete list of BGP display filter fields can be found in the display filter reference
- Show only BGP traffic:
You cannot directly filter BGP protocols while capturing. However, if you know the TCP port used (see above), you can filter on that one.
- Capture BGP traffic over the default port (179):
tcp port 179
RFC 1771 A Border Gateway Protocol 4 (BGP-4)
RFC 1965 Autonomous System Confederations for BGP
RFC 1997 BGP Communities Attribute
RFC 2547 BGP/MPLS VPNs
RFC 2796 BGP Route Reflection - An Alternative to Full Mesh IBGP
RFC 2842 Capabilities Advertisement with BGP-4
RFC 2858 Multiprotocol Extensions for BGP-4
RFC 2918 Route Refresh Capability for BGP-4
RFC 3107 Carrying Label Information in BGP-4