With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL3IpCtrlProxyArp
Switch L3 Ip Control Proxy Arp
1.3.6.1.4.1.171.11.70.5.3.2.1.3.1.6
-- "This object indicates enable/disable of the proxy ARP function for IPv4. When this is true(1), the IP address is the secondary IP. When false(2), the IP address is the primary IP.
Back to DES3627-SWL3MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL3IpCtrlProxyArp on D-Link device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring D-Link routers right now.