system ip 203.9.156.100
state of eth0 - negotiated, ... link ok

Destination  Gateway       Genmask
203.9.156.0  0.0.0.0       255.255.252.0
0.0.0.0      203.9.156.126 0.0.0.0

arping got a reply

arp:
? (203.9.156.126) at a:mac:here addr [ether] on eth0