Hello All,
I have two different internet facing cas locations (Exchange 2010 SP2) and want to use a single global url (mail.domain.com) to access mailbox.
I need to setup InternalURL and ExternalURL values for both CAS server location.
I have idea as below but not sure will it work??
| External DNS | ISP 1 IP Address | ISP 1 IP Address | ||||
| Host (A) | mail.domain.com | 202.1.1.1 | mail.domain.com | 303.1.1.1 | ||
| Host (A) | mail1.domain.com | 202.1.1.1 | mail2.domain.com | 303.1.1.1 | ||
| Internal DNS | ||||||
| AD Site | SiteA | SiteB | ||||
| NLB Name | noidanlb.domain.com | 10.0.0.1 | pthnlb.domain.com | 20.0.0.1 | ||
| CAS-InternalURL | mail.domain.com | 10.0.0.1 | mail.domain.com | 20.0.0.1 | ||
| CAS-ExternalURL | mail1.domain.com | 10.0.0.1 | mail2.domain.com | 20.0.0.1 | ||
| UserA with mailbox | UserB with mailbox |
Case1: WAN link UP between SiteA and SiteB
1.In this case if userA access his mailbox (from internet) via mail.domain.com and external dns hit goes to SiteB, will userA redirect to SiteA for mailbox.
2. Similarly if userB access his mailbox (from internet) via mail.domain.com and external dns hit goes to SiteA, will userB redirect to SiteA for mailbox.
Case2: WAN link DOWN between SiteA and SiteB
1.In this case if userA access his mailbox (from internet) via mail.domain.com and external dns hit goes to SiteB, will userA redirect to SiteA for mailbox.
2. Similarly if userB access his mailbox (from internet) via mail.domain.com and external dns hit goes to SiteA, will userB redirect to SiteA for mailbox.
Thanks in advance NKumar