nmblookup returns NULL mac Address from linux samba servers

shivappa Sangapur ssangapur3 at gmail.com
Thu Aug 24 10:30:30 UTC 2017

Hi List,

When I was checking nmblookup utility, MAC address returned is always
#nmblookup -A

Looking up status of
        SHIVAPPAS     <00> -         H <ACTIVE>
        SHIVAPPAS     <03> -         H <ACTIVE>
        SHIVAPPAS     <20> -         H <ACTIVE>
        SHIVAPPAS     <1e> - <GROUP> H <ACTIVE>
        SHIVAPPAS     <00> - <GROUP> H <ACTIVE>

        MAC Address = 00-00-00-00-00-00

But there is one old thread on the same. The result is same even though
samba server is on same subnet (execute nmblookup on same samba server.)

This behavior is same in samba-4.5, 4.6.
Can somebody help me to identify the cause.
nmb->answers structure is always having 00000000 for mac address field.

Addition info: Windows clients return MAC address when nmblookup is executed
for windows IP.

Thanks & Regards,

View this message in context: http://samba.2283325.n4.nabble.com/nmblookup-returns-NULL-mac-Address-from-linux-samba-servers-tp4723151.html
Sent from the Samba - samba-technical mailing list archive at Nabble.com.

More information about the samba-technical mailing list