No able to work with iscsi target

[peter-wangxu]

$ sudo ./goock -d connect 172.17.0.2 1
DEBU[0000] Trying to validate the target IP : 172.17.0.2, LUN ID: [1]
DEBU[0000] Executing command: [iscsiadm -m discovery -t sendtargets -I default -p 172.17.0.2 --op new]
DEBU[0000] Command Result cmd=[iscsiadm -m discovery -t sendtargets -I default -p 172.17.0.2 --op new] duration=0.0028s exit_code=21 output="iscsiadm: No portals found
"
DEBU[0000] Discover result discovered= target=[172.17.0.2]
DEBU[0000] Executing command: [iscsiadm -m session]
DEBU[0000] Command Result cmd=[iscsiadm -m session] duration=0.0020s exit_code=21 output="iscsiadm: No active sessions.
"
DEBU[0000] Executing command: [iscsiadm -m session --rescan]
DEBU[0000] Command Result cmd=[iscsiadm -m session --rescan] duration=0.0023s exit_code=21 output="iscsiadm: No session found.
"
ERRO[0002] Unable to find any existing path within [] error="No path found"
Volume Information:
Multipath:
Single Paths:

Multipath ID:
WWN: