Didn't think that controller model supported EoGRE. In newer code, EoGRE is used with hotspots:
http://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-1/EoGRE/b_CUWN81-WLC-and-FC-AP-EoGRE-Tunnel-Gateway-DG.html
If things are working fine, then I wouldn't worry about it to be honest. Since that device is end of support, I would of told you to call TAC and ask:)
-Scott
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-Scott
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