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SD-WAN Colors

Public colors are behind NAT.

Public (NAT)Private
public-internetmpls
biz-internetmetro-ethernet
lteprivate1
3gprivate2
blueprivate3
bronzeprivate4
custom1private5
custom2private6
custom3
default
gold
green
red
silver

Terms

Color is a Cisco shorthand for the type of connection the SD-WAN is attached to.

Private IP

Public IP

  • AK, NAT address

Communication between colors

If two TLOCs try to make a tunnel, they will fall back to both using Public IPs, if either has a Public IP.

         Public   Private   
           Color    Color   
        ┌────────┬─────────┐
 Public │ Public │ Public  │
  Color │   IPs  │   IPs   │
        ├────────┼─────────┤
Private │ Public │ Private │
  Color │   IPs  │   IPs   │
        └────────┴─────────┘

References

NetworkAcademy - TLOCs and NAT

Cisco - SDWAN Configuration Guide - IOS-XE 17.x - TLOCs

Last Modified • Saturday, June 27, 2026. 11:45 pm UTC+00:00 • Commit: 4314778