commerce_shipping.routing.yml

commerce_shipping.configuration:
  path: '/admin/commerce/config/shipping'
  defaults:
    _controller: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
    _title: 'Shipping'
  requirements:
    _permission: 'access commerce administration pages'

entity.commerce_package_type.collection:
  path: '/admin/commerce/config/package-types'
  defaults:
    _entity_list: 'commerce_package_type'
    _title: 'Package types'
  requirements:
    _permission: 'administer commerce_package_type'

entity.commerce_shipping_method.collection:
  path: '/admin/commerce/config/shipping-methods'
  defaults:
    _entity_list: 'commerce_shipping_method'
    _title: 'Shipping methods'
  requirements:
    _permission: 'administer commerce_shipping_method'

entity.commerce_shipment_type.collection:
  path: '/admin/commerce/config/shipment-types'
  defaults:
    _entity_list: 'commerce_shipment_type'
    _title: 'Shipment types'
  requirements:
    _permission: 'administer commerce_shipment_type'