I have a public IP assigned to the Cisco Router 2811 which is used for internet and mail services for email publish using MS Exchange 2007. When internet is down, i am not able to send/receive mail. Our MX control is pointing to ISA Server 2006.
I have alternate internet connection and using speedtouch modem ST 585.
How can I use the cisco router public IP assigned to speedtouch ST 585 so that my mail services are not disrupted.
Thanks in advance. Regards LR
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