USG2130 can ping external network normally, but can not tracert external network. All the routing next hop can no reach, display
traceroute to 126.96.36.199(188.8.131.52) 30 hops max,40 bytes packet
1 * * *
2 * * *
he tracert message will be considered as illegal attack message,and will be dropped, so can not success
You can undo this configuration, and it will return display success.
1、ping next hop and external network normally;
2、check the configuration