Cisco Intelligent Wireless Access Gateway - Page 48

The following figure shows the structure of the EoGRE feature with PMIP/GTP integrated for mobility service.
Figure 3: Structure of the EoGRE Feature with PMIP/GTP Integrated for Mobility Service
Intelligent Wireless Access Gateway Configuration Guide
40 OL-30226-03
Service Provider WiFi: Support for Integrated Ethernet Over GRE
Information About Configuring Ethernet Over GRE