> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/tmedia-documentation/other-pages/use-cases/ip-network-configuration-use-case-one-subnet-two-ip-addresses-untagged.md).

# IP Network Configuration Use Case:One subnet, Two IP Addresses, Untagged

Worked IP network configuration for a Tmedia system on one untagged subnet with two IP addresses - one for management, one for VoIP. Tmedia 2.9 to 3.2.

> **Applies to:** Tmedia 2.9, 2.10, 3.0, 3.2

### One subnet, Two IP Addresses, Untagged

![UseCase OneSubTwoIpUntagged 0](https://docs.telcobridges.com/w/images/d/d8/UseCase_OneSubTwoIpUntagged_0.png)

|                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Local IPs                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | Remote IPs                                                                                                                                                                                                        |                                                                                                                                                                                                                |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| In this example, here are the IPs used: \* Management on mgmt0: 192.168.4.10 \* VoIP on voip0/voip1 (bonded): 192.168.4.20                                                                                                                                                                                                                                                                                                                                  | \* Radius server: 192.168.4.200 \* H.248 MGC: 192.168.4.210 \* Remote Sigtran endpoint IP: 192.168.4.100 \* Remote SIP endpoint IP: 192.168.4.110 \* Remote RTP endpoint IP: 192.168.4.120                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                   |                                                                                                                                                                                                                |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Configure IP Network A                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | Configure IP Network B                                                                                                                                                                                            |                                                                                                                                                                                                                |
| \*Subnet A is accessed through MGMT0 \*MGMT0 network interface modification requires the use of the tbchangeip shell script \*Use [tbchangeip](/tmedia-documentation/operations-and-support/troubleshooting/software/troubleshooting-toolpack/change-management-ip-address.md) with the following parameters: \*\***IP Address**: 192.168.4.10 \*\***Netmask**: 255.255.255.0 \*\***Default gateway**: 192.168.4.1                                          | Subnet B is untagged and bonded over VOIP0 and VOIP1 ports. \*Delete voip0 and voip1 virtual port \*Create [VP\_VOIP virtual port](/tmedia-documentation/configuration/web-portal-3-3/hardware/ip-network/configuring-virtual-port.md): \*\***Name**: VP\_VOIP \*\***vLanId**: Untagged \*\***Physical Ports**: voip0, voip1 \*Delete voip0 and voip1 IP Address \*Create [VOIP\_ADDRESS IP Address](/tmedia-documentation/configuration/web-portal-3-3/hardware/ip-network/configuring-voip-interfaces.md): \*\***Name**: VOIP\_ADDRESS \*\***Virtual Ports**: VP\_VOIP \*\***IP Address**: 192.168.4.20 \*\***Netmask**: 255.255.255.0 \*\***Services**: RTP, SIP, SIGTRAN |                                                                                                                                                                                                                   |                                                                                                                                                                                                                |
| Configure SIP                                                                                                                                                                                                                                                                                                                                                                                                                                               | Configure SIGTRAN                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | Configure H.248                                                                                                                                                                                                   | Configure RADIUS                                                                                                                                                                                               |
| \*[Configure SIP](/tmedia-documentation/configuration/web-portal-3-3/protocol-stack.md) \*\*IP range parameters: \*\*\***Name**: PORT\_RANGE\_VOIP \*\*\***IP Interface**: VOIP\_ADDRESS \*\*\***Minimum Port**: 20000 \*\*\***Maximum Port**: 30000 \*\*SIP transport server parameters: \*\*\***Port**: 5060 \*\*\***IP Interface**: VOIP\_ADDRESS \*\*SIP NAP parameters: \*\*\***Proxy Address**: 192.168.4.110 \*\*\***Port Range**: PORT\_RANGE\_VOIP | \*[Configure SIGTRAN](/tmedia-documentation/configuration/web-portal-3-3/protocol-stack.md) \*For Local Service Access Point (SAP), use voip0/voip1 bonded (192.168.4.20) \*For the remote service use 192.168.4.100                                                                                                                                                                                                                                                                                                                                                                                                                                                         | \*When you [Configure H.248](/tmedia-documentation/configuration/web-portal-3-3/protocol-stack.md), set the following: \*\***Local IP Address and Public IP Address**: 192.168.4.10 \[Public IP or NAT public IP] | \*When you [Configure RADIUS](/tmedia-documentation/configuration/web-portal-3-3/cdr.md), set the following: \*\***Source IP interface**: Any \*\***Radius -> Radius Server** \*\***Public IP Address**: Empty |


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