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### Description
we are using version: kamailio 5.5.1 (x86_64/linux) 8aa8df-dirty and we have a
setup with 2 kamailio instances. First one is doing topoh, and the second one
is supposed to not do it
Despite this we do see that some replies the second instance is masking some
headers like record route and contact in the 200ok (not in the 180)
Besides, seems that when the b-side sends a BYE, kamailio show an error, see in
logs part
However, in the sip pcap we do see thre BYE like it should be. At least that's
what it seems to me
i attach you the trace
[topoh_bye_bad_message.txt](https://github.com/kamailio/kamailio/files/15324366/topoh_bye_bad_message.txt)
do you have any idea of what can be the issue?
<!--
Explain what you did, what you expected to happen, and what actually happened.
-->
### Troubleshooting
#### Reproduction
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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).
-->
```
May 15 13:19:42 vqbert-2 /usr/local/kamailio/sbin/kamailio[31824]: ERROR:
<core> [core/parser/parse_fline.c:272]: parse_first_line(): parse_first_line:
bad message (offset: 54)
��%����QI:19:42 vqbert-2 /usr/local/kamailio/sbin/kamailio[31824]: ERROR:
<core> [core/parser/msg_parser.c:748]: parse_msg(): ERROR: parse_msg:
message=<BYE �ͥ���ĸ��Ը��ĸ���������Ʌ�������Ց��!���ᕈ�|���
����������������� SIP/2.0
Via: SIP/2.0/UDP
199.244.96.39:5060;TH=ucv;branch=z9hG4bK-524287-1---513df3f6b3057f235eef63c542634016;rport
Via: SIP/2.0/UDP 199.244.96.46:5071;rport=5071;branch=z9hG4bK-mx5umw4feykudkd5
Max-Forwards: 69
Route: <sip:79.170.71.169;lr;ftag=11002597000844;did=7842.5393>
Route: <sip:79.170.71.168;lr=on;ftag=11002597000844;did=b09.3b49>
��%����QI���ĸ��Ը��ĸ���������Ʌ�������Ց�����!���ᕈ�|���
����������>�����������������`�!ɉU�
Contact: sip:199.244.96.46:5071
To: +233240979290
<sip:+233240979290@79.170.71.168;user=phone>;tag=11002597000844
From: +233307000929
<sip:+233307000929@199.244.96.39.SBC1;user=phone>;tag=W7OXULJ726L2OYQEVKNA____.i
Call-ID:
Sonoc2Did!!:C9WJ3uq4gtNwMlcfzxFlM.jAkx0J34pvaRgtCt0vPl0EPxFwMJZfWJZfMBy7MP**
CSeq: 905 BYE
Allow: INVITE, ACK, BYE, CANCEL, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE,
OPTIONS, UPDATE
User-Agent: PortaSIP
cisco-GUID: 3592442246-2620412195-1372314391-1317599184
h323-conf-id: 3592442246-2620412195-1372314391-1317599184
Content-Length: 0
TH: uch
>
May 15 13:19:42 vqbert-2 /usr/local/kamailio/sbin/kamailio[31824]: ERROR:
<core> [core/receive.c:377]: receive_msg(): core parsing of SIP message failed
(199.244.96.39:5060/1)
```
#### 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).
-->
```
No. Time Source Destination Protocol
Length Info
17 62.116377 19.24.9.39 10.100.10.169 SIP 1273
Request: BYE
sip:127.0.0.8;line=sonoc2did-N6IAzBPfOBVfWmZfWBF7WlN-W.y6Mx14NEt7Nw05NhPQpRaAz4rApx4ZgRVZ9lF6z4WZpFIqH.PXKtexHRgEgEgEgEgEORgEgEgEgEgE
|
Frame 17: 1273 bytes on wire (10184 bits), 1273 bytes captured (10184 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 19.24.9.39, Dst: 10.100.10.169
User Datagram Protocol, Src Port: 5060, Dst Port: 5060
Session Initiation Protocol (BYE)
Request-Line: BYE
sip:127.0.0.8;line=sonoc2did-N6IAzBPfOBVfWmZfWBF7WlN-W.y6Mx14NEt7Nw05NhPQpRaAz4rApx4ZgRVZ9lF6z4WZpFIqH.PXKtexHRgEgEgEgEgEORgEgEgEgEgE
SIP/2.0
Method: BYE
Request-URI:
sip:127.0.0.8;line=sonoc2did-N6IAzBPfOBVfWmZfWBF7WlN-W.y6Mx14NEt7Nw05NhPQpRaAz4rApx4ZgRVZ9lF6z4WZpFIqH.PXKtexHRgEgEgEgEgEORgEgEgEgEgE
[Resent Packet: False]
Message Header
Via: SIP/2.0/UDP
19.24.9.39:5060;branch=z9hG4bK-524287-1---513df3f6b3057f235eef63c542634016;rport
Via: SIP/2.0/UDP
19.24.9.46:5071;rport=5071;branch=z9hG4bK-mx5umw4feykudkd5
Max-Forwards: 69
Route: <sip:10.100.10.169;lr;ftag=11002597000844;did=7842.5393>
Route: <sip:10.100.10.168;lr=on;ftag=11002597000844;did=b09.3b49>
Route:
<sip:127.0.0.8;line=sonoc2did-N6IAzBPfOBVfWmZfWBF7WlN-W.y6Mx14NEt7Nw05NhPQpRaAz6fLz4rApx4ZgRVZ9lF6z4WZpFIqH.PXKtexHRgEgEgEgEgEORgEgEgEgEgEzuc1mUpGMEeK3jW5o61Yg.4fWBMLWc**>
Contact: sip:19.24.9.46:5071
To: +233240979290
<sip:+233240979290@10.100.10.168;user=phone>;tag=11002597000844
From: +233307000929
<sip:+233307000929@19.24.9.39.SBC1;user=phone>;tag=W7OXULJ726L2OYQEVKNA____.i
Call-ID:
Sonoc2Did!!:C9WJ3uq4gtNwMlcfzxFlM.jAkx0J34pvaRgtCt0vPl0EPxFwMJZfWJZfMBy7MP**
[Generated Call-ID:
Sonoc2Did!!:C9WJ3uq4gtNwMlcfzxFlM.jAkx0J34pvaRgtCt0vPl0EPxFwMJZfWJZfMBy7MP**]
CSeq: 905 BYE
Allow: INVITE, ACK, BYE, CANCEL, INFO, SUBSCRIBE, NOTIFY, REFER,
MESSAGE, OPTIONS, UPDATE
User-Agent: PortaSIP
cisco-GUID: 3592442246-2620412195-1372314391-1317599184
h323-conf-id: 3592442246-2620412195-1372314391-1317599184
Content-Length: 0
```
### Possible Solutions
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If you found a solution or workaround for the issue, describe it. Ideally,
provide a pull request with a fix.
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### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
(paste your output here)
```
* **Operating System**:
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16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
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```
(paste your output here)
```
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