After checking the 'ip rule', there is a strange rule 220:
root@TRD:~# ip rule show
0: from all lookup local
220: not from all fwmark 0xffffffff lookup 220
32766: from all lookup main
32767: from all lookup default
After deleting the rule 220, both local and remote subnetworks can be reached.
root@TRD:~# ip del pri 220
We will check where added the rule.