The issue has already been resolved. 2017.11.13 [Mon]

Off Campus Access by SSL-VPN to Oxford University Press (OUP) E-Journals is temporarily unavailable due to system failure.
We apologize for any inconveniences.

Please use OUP E-Journals inside the GRIPS campus until the system is restored.

Oxford University Press
https://academic.oup.com/journals

List of OUP E-Journals available at GRIPS http://opac.grips.ac.jp/mylimedio/dirsearch/dirsearch.do?dirid=ej-tl&nodeid=ej-tl&pnode=&lang=en