21 Aug
2020
21 Aug
'20
4:13 a.m.
### Description
Added IPv6 listeners into the default config file.
```
listen=udp:[2600:1f18:63e1:6936::300]:5060
listen=tcp:[2600:1f18:63e1:6936::300]:5060
```
Kamailio is able receive REGISTER messages. But ignores `OPTIONS`. When `#!define
WITH_DEBUG` kamailio shows nothing on `OPTIONS` messages.
### Troubleshooting
#### Reproduction
1) add IPv6 listeners into default config
2) send OPTIONS messages to kamailio.
#### Debugging Data
None
#### Log Messages
None
#### SIP Traffic
Kamailio receive this OPTIONS messages
```
OPTIONS sip:proxy-0.wv.example.com:5080 SIP/2.0
Via: SIP/2.0/UDP
[2600:1F1C:257:8706:ACAB:AE:2A01:1EA3];branch=z9hG4bK2b03.70dce6f2000000000000000000000000.0
To: <sip:proxy-0.wv.example.com:5080>
From:
<sip:proxy@aggregator.example.com>;tag=44bcb2ee24537bd62851129efb658b7a-17d18de8
CSeq: 10 OPTIONS
Call-ID: 59605197726e91db-2653(a)172.22.6.201
Max-Forwards: 70
Content-Length: 0
User-Agent: kamailio (5.5.0-dev1 (x86_64/linux))
```
### Possible Solutions
Not known
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
[root@proxy-0 ~]# kamailio -v
version: kamailio 5.5.0-dev1 (x86_64/linux) c960ca
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST,
DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY,
USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR,
USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535,
DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: c960ca
compiled on 04:08:19 Aug 20 2020 with gcc 4.8.5
```
* **Operating System**:
```
[root@proxy-0 ~]# cat /etc/os-release
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"
CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"
```
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