RIPv2 New Fields

• Route tag

• • Generic field that must be preserved and re-advertised with the route
  • Allows for RIP-EGP interaction
  • • Some routes can be tagged “internal” and others can be tagged “external”
    • The tag usually takes the form of a autonomous system (AS) number
    • Exact interpretation is not specified

• Mask

• • The subnet mask of the address part of the entry
  • Allows for hierarchical route specifications and aggregation

• Next hop

• • The router to which destinations matching this route entry should be forwarded