[kamailio/kamailio] Topoh module does not hide 180 Ringing and 200 Ok to the caller UE in IMS config (Issue #4164) - sr-dev

5 Mar 2025


      Fr-Soltanzadeh created an issue (kamailio/kamailio#4164)
### Description
In a IMS lab using Kamailio PCSCF, ICSCF and SCSCF default configs, I have used TOPOH module in PCSCF for topology hiding. Topoh config is as follows:
```
modparam("topoh", "mask_key", "my-key")
modparam("topoh", "mask_ip", "127.0.0.2")
modparam("topoh", "sanity_checks", 1)
```
As shown in attached traffic, SCSCF IP is not hided in 180 ringing and 200ok messages to the caller. In invite, ack and bye messages hiding is performed well.
[topoh.zip](https://github.com/user-attachments/files/19086420/topoh.zip)
[topoh.zip](https://github.com/user-attachments/files/19086428/topoh.zip)
[topoh.zip](https://github.com/user-attachments/files/19086431/topoh.zip)
<!--
Explain what you did, what you expected to happen, and what actually happened.
-->
### Troubleshooting
#### Reproduction
<!--
If the issue can be reproduced, describe how it can be done.
-->
#### Debugging Data
<!--
If you got a core dump, use gdb to extract troubleshooting data - full backtrace,
local variables and the list of the code at the issue location.
gdb /path/to/kamailio /path/to/corefile
  bt full
  info locals
  list
If you are familiar with gdb, feel free to attach more of what you consider to
be relevant.
-->
```
(paste your debugging data here)
```
#### Log Messages
<!--
Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).
-->
```
(paste your log messages here)
```
#### SIP Traffic
<!--
If the issue is exposed by processing specific SIP messages, grab them with ngrep or save in a pcap file, then add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).
-->
```
(paste your sip traffic here)
```
### Possible Solutions
<!--
If you found a solution or workaround for the issue, describe it. Ideally, provide a pull request with a fix.
-->
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
(paste your output here)
```
* **Operating System**:
<!--
Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `lsb_release -a` and `uname -a`)
-->
```
(paste your output here)
```
-- 
Reply to this email directly or view it on GitHub:
https://github.com/kamailio/kamailio/issues/4164
You are receiving this because you are subscribed to this thread.

Message ID: kamailio/kamailio/issues/4164@github.com