With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cagwDhcpOfferPackets
Cisco's ASN Gateway Dhcp Offer Packets
1.3.6.1.4.1.9.9.638.1.3.2.1.1.2
The number of DHCP Offer packets received by the DHCP relay in the ASN-GW from the DHCP server.
Back to CISCO-ASN-GATEWAY-MIB MIB page.
IPHost Network monitor allows you to monitor cagwDhcpOfferPackets on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.