Two DHCP NICs on 2008 R2 - Dual Default Routes

have virtual server configured 2 nics. both nics dhcp enabled. microsoft dhcp server in use.

nic1 on 10.100.1.x/23 subnet. dhcp router option defined 10.100.1.1

nic 2 on 10.101.1.x/23 subnet. dhcp router on network not defined. 

when ipconfig on server: 

windows ip configuration


ethernet adapter data1:

   connection-specific dns suffix  . : domain.local
   ipv4 address. . . . . . . . . . . : 10.100.1.166
   subnet mask . . . . . . . . . . . : 255.255.254.0
   default gateway . . . . . . . . . : 10.100.1.1

ethernet adapter data2:

   connection-specific dns suffix  . : domain.local
   ipv4 address. . . . . . . . . . . : 10.101.1.175
   subnet mask . . . . . . . . . . . : 255.255.254.0
   default gateway . . . . . . . . . : 10.100.1.1

data2 interface not have default gateway assigned manually , mentioned dhcp scope not have router option defined (neither server options). seems interface data2 taking data1's default gateway configuration.

when route print, this:

ipv4 route table
===========================================================================
active routes:
network destination        netmask          gateway       interface   metric
          0.0.0.0           0.0.0.0       10.100.1.1     10.101.1.166    266
          0.0.0.0         0.0.0.0     10.100.1.1      10.100.1.175     10

why there 2 default routes? default gateway on dhcp scope no router option coming from? route metric 266 comfing from?

hi,

i recommend double check dhcp server, both server options , scope options.

default gateway configured in option “003 router”.

Windows Server  >  Network Infrastructure Servers