how to prohibit teb local planning through unknown area?

[TrayfourYu]

I'm using move_base package in a differ robot with a static global map, which is got from the gmapping. So, there are some unknown area in the map, and I found that teb planner can't find a path through those area.

[vimalrajayyappan]

I think you can use

track_unknown_space: False in local_costmap which allows you to plan path in unknown area