通常のdhcpは、ethernet を付けてますが、
REGZA 37/Z1 や ICONIA TAB A500 は ethernet を外すと指定IPが取得できます
https://www.asfit.net/blog/kan/?p=414
dhcp service server dhcp server rfc2131 compliant except remain-silent dhcp scope lease type 1 bind-priority dhcp scope 1 192.168.1.51-192.168.1.79/24 dhcp scope bind 1 192.168.1.51 ethernet 00:1c:42:**:**:** dhcp scope bind 1 192.168.1.52 e8:9d:87:**:**:** dhcp scope bind 1 192.168.1.53 ethernet cc:7e:e7:**:**:** dhcp scope bind 1 192.168.1.54 e0:b9:a5:**:**:**
> show status dhcp DHCP Scope number: 1 Network address: 192.168.1.0 Leased address: 192.168.1.51 (type) Client ID: (01) 00 1c 42 ** ** ** Host Name: PC8001 Remaining lease: 2days 15hours 47min. 47secs. Leased address: 192.168.1.52 Client ethernet address: e8:9d:87:**:**:** Host Name: REGZA Remaining lease: 8hours 43min. 13secs. Reserved(not leased): 192.168.1.53 = 01 cc 7e e7 ** ** ** Reserved(not leased): 192.168.1.54 = e0:b9:a5:**:**:**