Internal and External DNS for Lync and Phone Edition Devices

Internal and External DNS Requirement

Internal DNS Server Records

Record Type

Record Location

Record Name

maps to

SRV Record

Internal DNS

_sipinternal._tcp. <domain name>

FE Server VIP

SRV Record

Internal DNS

_sipinternaltls._tcp. <domain name>

FE Server VIP

A Record

Internal DNS

comp.<domain name>

FE Server VIP

A Record

Internal DNS

lync.<domain name>

FE Server VIP

External DNS Server Records

SRV Record

External DNS

_sip._tls.<domain name>

Lync-edge. <domain name> VIP

A Record

External DNS

sip.<domain name>

Lync -edge. <domain name> Access VIP

A Record

External DNS

lync.<domain name>

Lync -edge. <domain name> WebConf VIP

A Record

 

External DNS

comp.<domain name>

 

Proxy IP where the web service is NAT’d

Internal and External DNS for Phone Edition Devices

Internal DNS Server Records

Record Type

Record Location

Record Name

maps to

SRV Record

Internal DNS

_ntp._udp. <domain name>

FE Server VIP (port 123)

A Record

Internal DNS

lync.<domain name>

FE Server VIP

External DNS Server Records

SRV Record

External DNS

_ntp._udp.<domain name>

Lync-edge. <domain name> VIP

(port 123)

A Record

External DNS

sip.<domain name>

Lync -edge. <domain name> Access VIP

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