03-21-2017 10:11 AM - edited 03-19-2019 12:14 PM
Good day!!
One question, I have the next escenario, in the expressway E only have one interfaz LAN 1 with Static Nat
Local IP | Public IP | |
Expressway E | 10.10.10.1 | 190.85.194.15 |
I vericate from external domain with Nslookup and show the next information.
set type=SRV
_collab-edge._tls.co.example.com
Server: google-public-dns-a.google.com
Address: 8.8.8.8
Non-authoritative answer:
_collab-edge._tls.co.example.com SRV service location.
priority = 10
weight = 10
port = 8443
svr hostname = exp-e.co.example.com
and the commnad ping reply from the public IP
Pinging exp-e.co.example.com [190.85.194.15] with 32 bytes of data:
Reply from 190.85.194.15: bytes=32 time=4ms TTL=54
Reply from 190.85.194.15: bytes=32 time=3ms TTL=54
It's okay that Expressway reply from public IP ??
In the external DNS the registry A point to internal o public IP ??
In the expressway E recognize the domain and CUCM and IM Presence Server, Something more is needed??
Domains | |||
---|---|---|---|
Name | Services | Associated zones | Single Sign-On support |
co.example.com | Unified CM registrations, IM and Presence Service | UC Traversal Zone | No |
Thanks
03-21-2017 12:31 PM
Yes, you should receive a reply from the public IP, I suggest you review RFC 1918
Because private addresses have no global meaning, routing information about private networks shall not be propagated on inter-enterprise links, and packets with private source or destination addresses should not be forwarded across such links. Routers in networks not using private address space, especially those of Internet service providers, are expected to be configured to reject (filter out) routing information about private networks. If such a router receives such information the rejection shall not be treated as a routing protocol error.
In the external DNS the registry A point to internal o public IP ??
Answered above.
In the expressway E recognize the domain and CUCM and IM Presence Server, Something more is needed??
Not sure what you're asking here, all the configuration steps are in the MRA configuration guide.
03-21-2017 12:53 PM
In this moment in the DNS external the registry point to external IP
exp-e.co.example.com ---- > 190.85.194.15
It's possible realize manual configuration in Jabber from external network ??
Example: Select Cisco IM & Presence and set public IP address of the expressway E
or only with the auto discovery srv collab ??
Thanks
03-21-2017 12:56 PM
No, MRA is expected to work using the _collab-edge SRV record without any user intervention.
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