/ip dhcp-client
add add-default-route=yes comment="default configuration" default-route-distance=0 disabled=no host-name=router0 interface=ether1-gateway use-peer-dns=yes use-peer-ntp=yes
Router receives Router Option, but doesnt put it into it routing table (same dhcp server and windows 7 works fine).
[root@MikroTik] > /system routerboard print
routerboard: yes
model: "750G"
serial-number: "228E0183F39C"
current-firmware: "2.26"
upgrade-firmware: "2.26"
[root@MikroTik] > /system package print
Flags: X - disabled
NAME VERSION SCHEDULED
0 system 5.0beta2
1 dhcp 5.0beta2
2 routeros-mipsbe 5.0beta2
3 wireless 5.0beta2
4 hotspot 5.0beta2
5 mpls 5.0beta2
6 X ipv6 5.0beta2
7 security 5.0beta2
8 ppp 5.0beta2
9 routerboard 5.0beta2
10 routing 5.0beta2
11 advanced-tools 5.0beta2