### Description
Kamailio start failed as carrierrouter
### Troubleshooting
Main error
`[parser_carrierroute.c:271]: parse_options(): Duplicate option definition
max_targets`
Reproduction
Define module
```
modparam("carrierroute", "config_source", "file")
modparam("carrierroute", "match_mode", 128)
modparam("carrierroute", "config_file", "/etc/kamailio/carrierroute.conf")
```
Create carrierroute.conf like in module documentation
```
domain first {
prefix + {
max_targets = 2
target 192.168.1.1 {
prob = 0.50
hash_index = 1
status = 1
comment = "First Master"
}
target 192.168.1.2 {
prob = 0.50
hash_index = 2
status = 1
comment = "Firts Slave"
}
}
}
domain second {
prefix +99 {
max_targets = 2
target 192.168.1.3 {
prob = 0.50
hash_index = 1
status = 1
comment = "Second Master"
}
target 192.168.1.4 {
prob = 0.50
hash_index = 2
status = 1
comment = "Second Slave"
}
}
}
```
Debugging Data
```
(paste your debugging data here)
```
Log Messages
```
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: INFO: carrierroute
[carrierroute.c:213]: mod_init(): use file as configuration source
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: INFO: carrierroute
[cr_carrier.c:98]: add_domain_data(): adding domain 1 'first' to carrier 1
'default'
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: INFO: carrierroute
[cr_rule.c:118]: add_route_rule(): no backed up rules
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: INFO: carrierroute
[cr_rule.c:118]: add_route_rule(): no backed up rules
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: INFO: carrierroute
[cr_carrier.c:98]: add_domain_data(): adding domain 2 'second' to carrier 1
'default'
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: ERROR: carrierroute
[parser_carrierroute.c:271]: parse_options(): Duplicate option definition
max_targets
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: ERROR: carrierroute
[cr_config.c:351]: load_config(): Error in parsing
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: ERROR: carrierroute
[cr_data.c:185]: reload_route_data(): could not load routing data
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: ERROR: carrierroute
[carrierroute.c:255]: mod_init(): could not prepare route data
Apr 3 09:50:18 localhost /usr/sbin/kamailio[16964]: ERROR:
[core/sr_module.c:987]: init_mod(): Error while initializing module
carrierroute (/usr/lib64/kamailio/modules/carrierroute.so)
```
SIP Traffic
```
(paste your sip traffic here)
```
### Possible Solutions
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.1.2 (x86_64/linux)
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE,
USE_MCAST, DNS_IP_HACK, SHM_MEM, 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_LISTEN 16,
MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: unknown
compiled on 11:28:18 Mar 20 2018 with gcc 4.8.5
```
* **Operating System**:
```
Linux localhost 3.10.0-693.21.1.el7.x86_64 #1 SMP Wed Mar 7 19:03:37 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
```
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