Two SRX Series devices are having problems establishing an IPsec VPN session. One of the devices
has a firewall filter applied to its gateway interface that rejects UDP traffic. What would resolve the
problem?

A.
Disable the IKE Phase 1 part of the session establishment.

B.
Disable the IKE Phase 2 part of the session establishment.

C.
Change the configuration so that session establishment uses TCP.

D.
Edit the firewall filter to allow UDP port 500.