Zone Configuration

5.2 India DNS Configuration

5.2.1 India Internal DNS Servers

Site	DNS Server	IP Address	Forwarder
Mumbai HQ	dc-mum-01.abhavtech.com	10.1.10.5	8.8.8.8, 8.8.4.4
Mumbai HQ	dc-mum-02.abhavtech.com	10.1.10.6	8.8.8.8, 8.8.4.4
Chennai	dc-che-01.abhavtech.com	10.2.10.5	10.1.10.5 (via SD-WAN)
Bangalore	dc-blr-01.abhavtech.com	10.3.10.5	10.1.10.5 (via SD-WAN)

5.2.2 India LGW DNS Records

Internal DNS Zone: abhavtech.com

; Local Gateway A Records
lgw-mum-01.abhavtech.com.    IN  A  10.1.50.10
lgw-mum-02.abhavtech.com.    IN  A  10.1.50.11
lgw-che-01.abhavtech.com.    IN  A  10.2.50.10
lgw-blr-01.abhavtech.com.    IN  A  10.3.50.10
lgw-del-01.abhavtech.com.    IN  A  10.4.50.10
lgw-noi-01.abhavtech.com.    IN  A  10.5.50.10
lgw-hyd-01.abhavtech.com.    IN  A  10.7.50.10

; SRV Records (if using SRV-based routing)
_sips._tcp.lgw-mum.abhavtech.com.  IN  SRV  10 10 5061 lgw-mum-01.abhavtech.com.
_sips._tcp.lgw-mum.abhavtech.com.  IN  SRV  20 10 5061 lgw-mum-02.abhavtech.com.

5.2.3 Windows DNS Configuration (Mumbai)

# Add Conditional Forwarder for Webex (bypass internal resolution)
Add-DnsServerConditionalForwarderZone -Name "webex.com" -MasterServers 8.8.8.8,8.8.4.4
Add-DnsServerConditionalForwarderZone -Name "wbx2.com" -MasterServers 8.8.8.8,8.8.4.4
Add-DnsServerConditionalForwarderZone -Name "ciscospark.com" -MasterServers 8.8.8.8,8.8.4.4

# Verify
Get-DnsServerZone | Where-Object {$_.ZoneType -eq 'Forwarder'}

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