Exam 1Y0-231 topic 1 question 23 discussion

Scenario: A Citrix Administrator configured a new router that requires some incoming and outgoing traffic to take different paths through it. The administrator notices that this is failing and runs a network trace. After a short monitoring period, the administrator notices that the packets are still NOT getting to the new router from the Citrix ADC.
Which mode should the administrator disable on the Citrix ADC to facilitate the successful routing of the packets?