I don't think it is a big problem.
See my tests:
root@milana:~# ip a l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
UP qlen 1000
link/ether 00:50:fc:98:d7:8b brd ff:ff:ff:ff:ff:ff
inet 192.168.254.254/24 brd 192.168.254.255 scope global eth1
inet 1.2.3.4/0 brd 255.255.255.255 scope global eth1:0
inet 1.2.3.5/0 brd 255.255.255.255 scope global secondary eth1:2
inet 1.2.3.6/0 brd 255.255.255.255 scope global secondary eth1:test
inet 1.2.3.7/0 brd 255.255.255.255 scope global secondary eth1:4:4
3: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
UP qlen 1000
link/ether a0:00:00:05:dd:42 brd ff:ff:ff:ff:ff:ff
inet 10.10.1.201/20 brd 10.10.15.255 scope global eth2
root@milana:~# gcc -g -Wall -o getifaddrs getifaddrs.c
root@milana:~# ./getifaddrs
Interface Name : lo
Address / Mask : 127.0.0.1 / 255.0.0.0
Interface Name : eth1
Address / Mask : 192.168.254.254 / 255.255.255.0
Interface Name : eth1:0
Address / Mask : 1.2.3.4 / 0.0.0.0
Interface Name : eth1:2
Address / Mask : 1.2.3.5 / 0.0.0.0
Interface Name : eth1:test
Address / Mask : 1.2.3.6 / 0.0.0.0
Interface Name : eth1:4:4
Address / Mask : 1.2.3.7 / 0.0.0.0
Interface Name : eth2
Address / Mask : 10.10.1.201 / 255.255.240.0
Test code attached.
2014-06-05 9:31 GMT+04:00 Olle E. Johansson <[email protected]>:
>
> On 04 Jun 2014, at 22:38, Alex Balashov <[email protected]> wrote:
>
> > On 06/04/2014 04:37 PM, Olle E. Johansson wrote:
> >>
> >> On 04 Jun 2014, at 22:35, Alex Balashov <[email protected]>
> wrote:
> >>
> >>> Hello Olle,
> >>>
> >>> Couldn't you get around this by just specifying the IP address of the
> interface? e.g.
> >>>
> >>> listen=udp:xxx.xxx.xxx.xxx:5060
> >> Not in this configuration, but with some tweaking I may. But it would
> simplify
> >> a lot if I just could point to the interface.
> >
> > I run into this problem a lot, too, with eth0:x subinterfaces. But
> specifying the address is the only way I know of to solve it at present.
>
> I guess it's about time to file a bug report :-)
>
> /O
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
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>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <net/if.h>
#include <ifaddrs.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
int main()
{
struct ifaddrs *ia, *tia;
void *tap;
int rc;
const char *ta;
char aob[INET6_ADDRSTRLEN];
char aob2[1024];
ia = NULL;
tia = NULL;
tap = NULL;
if ((rc = getifaddrs(&ia)) == 0)
{
for(tia=ia; tia!=NULL; tia=tia->ifa_next)
{
memset(aob2, 0, sizeof(aob2));
if (tia->ifa_name == NULL || tia->ifa_addr == NULL || tia->ifa_netmask == NULL)
continue;
sprintf(aob2, "Interface Name : %s\n", tia->ifa_name);
if(tia->ifa_addr->sa_family == AF_INET)
tap = &((struct sockaddr_in *)tia->ifa_addr)->sin_addr;
else
tap = &((struct sockaddr_in6 *)tia->ifa_addr)->sin6_addr;
strcat(aob2, "Address / Mask : ");
ta = inet_ntop(tia->ifa_addr->sa_family, tap, aob, sizeof(aob));
if (!ta)
continue;
strcat(aob2, ta);
strcat(aob2, " / ");
if (tia->ifa_netmask->sa_family == AF_INET)
tap = &((struct sockaddr_in *)tia->ifa_netmask)->sin_addr;
else
tap = &((struct sockaddr_in6 *)tia->ifa_netmask)->sin6_addr;
ta = inet_ntop(tia->ifa_netmask->sa_family, tap, aob, sizeof(aob));
if (!ta)
continue;
strcat(aob2, ta);
strcat(aob2, "\n");
printf("%s\n", aob2);
}
freeifaddrs(ia);
ia = NULL;
}
else
{
printf("getifaddrs() failed with errno = %d %s \n", errno, strerror(errno));
return rc;
}
return 0;
}
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