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Collaboration Edge - DNS Records

Network Admin
Level 1
Level 1

From Cisco Document for Expressway , DNS Records requirements , say for example :

For Public DNS :-

  •  Service   : collab-edge
  •  Protocol  : tls

But in the table , they did not mention to prefix  " _ " (underscore) with collab-edge or tls. Am confused do I have to manualy add "_" (underscore) before collab-edge while filling SRV Records  or it takes automatically ?

Similarly for  cisco-uds , tcp , tls , cuplogin etc.  Please clarify ?

 

 

 

1 Accepted Solution

Accepted Solutions

Terry Cheema
VIP Alumni
VIP Alumni

Hi Mate,

That's the format of the SRV record, you have to type in the underscores. In the tables they have provided you the detailed information like service, protocol etc.

So you create your DNS SRV entried accordingly.

 

Refer to below example screenshot:

 

Also read through the wikipedia article here for understanding of the SRV records.

https://en.wikipedia.org/wiki/SRV_record

Please feel free to ask if you have any more queries.

-Terry

Please rate all helpful posts

View solution in original post

3 Replies 3

Terry Cheema
VIP Alumni
VIP Alumni

Hi Mate,

That's the format of the SRV record, you have to type in the underscores. In the tables they have provided you the detailed information like service, protocol etc.

So you create your DNS SRV entried accordingly.

 

Refer to below example screenshot:

 

Also read through the wikipedia article here for understanding of the SRV records.

https://en.wikipedia.org/wiki/SRV_record

Please feel free to ask if you have any more queries.

-Terry

Please rate all helpful posts

Just one more thing ,  In the Cisco Official Basic Configuration Deployment Guide , I saw some other SRV Record entries as listed below  ,  h323cs , h323ls, turn etc .

 

Q1. Do we need to add them as well   along with the other entries I asked above ?

Q2. What if both my internal and External Domain are same  say company.com ?  (here below I see internal and external domain are different  )

 

LINK :  PAGE NUMBER : 40
http://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-5/Cisco-Expressway-Basic-Configuration-Deployment-Guide-X8-5-2.pdf

I haven't read the guide but I would suggest you to follow the guide and create all SRV records being asked in the guide.

Mostly you would have an internal domain.local for internal and domain.com for external. If you are saying you have same domain name are you using split DNS ? I am not sure what your DNS topoly is but assuming you have a split-DNS, you will need to create the entries accordingly in your internal and external zones.

-Terry

Please rate all helpful posts

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