Masquerade Hotspot and VoIP

RouterOS General
1

Hi, I´m having some trouble getting an user from a hotspot to get Voip communication with a sip server. When i´m behind a masquerade, i get to hear, but the remote site can´t hear me. When i´m not behind the masquerade communication get established without trouble. Can you help me with this? It is possible to hve this services through maquerade?


Regards,

Martín Castillo.

2

Martín,
‘Full-NAT’ (public-to-local IP) tecnique might help you.
http://wiki.mikrotik.com/wiki/How_to_link_Public_addresses_to_Local_ones
Alternative solution, do not use NAT and obtain public IP addresses for all VoIP devices.

3

Hello, thank you for your help, i made full nat, but it didn´t work, Is it other way to make that?. How can i make that my hotspot gives some user public ips and others private ips?


Regards,

Mcastillo.

4

hello,
just make static dhcp-lease, and use public IP assigment.
based on public IP pool.
regards,

Stoned.

5

what do you mean public-ip assignment via dhcp?

tks
joe

6

hi again,
simply you have to create another pool (with public IPs) and assign
it to the static dhcp-lease section.
Then assiociate MACs with public IPs.

regards,

Stoned.

7

ok, but the thing is that i have a hotspot in wich i want to offer navegation and voip services, with navegation i don´t have problems with natted pc´s, but when i want to offer voip , natted calls from natted pc’s don´t work properly. If any of you have gotten a hotspot with nat to work with voip registrering in a SIP server anywhere in the world, i´d appreciatte your help.


Regards,

Martín Castillo.

8
  1. You have to set ‘full NAT’ rules.
  2. Assign public address to local interfaces (VoIP), here is information about SIP and NAT.
9

Thnaks i solved it configuring in the client´s softphone an outbound proxy: fwdnat2.pulver.com.


Regards,

Martín Castillo.