I tried whitelisting an address and pinging from that address, but I still got no ping.
set firewall family inet filter ICMP_Whitelist term term_1 from source-address 208.73.147.142/32 set firewall family inet filter ICMP_Whitelist term term_1 from destination-address 198.27.134.230/32 set firewall family inet filter ICMP_Whitelist term term_1 from protocol icmp set firewall family inet filter ICMP_Whitelist term term_1 then accept
set firewall family inet filter ICMP_Whitelist term term_2 then accept set interface ge-0/0/0 unit 0 family inet filter input ICMP_Whitelist
I'm pretty sure you shouldn't have to whitelist an address in order to use Dynamic VPN from that address, but I will try just about anything at this point.
I was following advice from this post: https://forums.juniper.net/t5/SRX-Services-Gateway/SRX240H-Ping-Untrust-interface-from-Internet/td-p/219641