[asterisk-bugs] [JIRA] (ASTERISK-24282) Asterisk listening/communicating on undefined IP

[Zohair Raza (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-24282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=225951#comment-225951 ] 

Zohair Raza commented on ASTERISK-24282:
----------------------------------------

Hi Rusty

You may give a try this way 

Use one IP on a physical interface and another on a virtual one like below
eth0      Link encap:Ethernet  HWaddr 00:50:56:A0:12:01
          inet addr:172.20.255.41  Bcast:172.20.255.255  Mask:255.255.255.0
eth0:0    Link encap:Ethernet  HWaddr 00:50:56:A0:12:01
          inet addr:172.20.255.40  Bcast:172.20.255.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

In sip.conf, set asterisk to listen on the IP address that is on virtual interface
[general]
bindaddr=172.20.255.40
transport=udp,tcp
tcpenable=yes

Create some extensions and register two or three softphones, I suggest using microsip as it is the one I am using (issue is not related to softphone because I have seen the same with some IP phones as well)

Use TCP transport for the softphone and then see on asterisk machine in netstat or "lsof -i :5060", you will see some connections from the IP that is on physical interface i.e in above case 172.20.255.41

Let me know if you need anything else

thanks




> Asterisk listening/communicating on undefined IP
> ------------------------------------------------
>
>                 Key: ASTERISK-24282
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24282
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/Interoperability
>    Affects Versions: 11.3.0
>         Environment: Vmware Esxi / Centos 6 
>            Reporter: Zohair Raza
>            Assignee: Zohair Raza
>            Severity: Critical
>         Attachments: 7may.pcapng, ast.pcap, issue24282, mylog.log, s1.pcap
>
>
> Hi,
> I am running asterisk on VMs with standby heartbeat configuration, Heartbeat assigns a virtual IP 172.20.255.40 on machine afterwards asterisk is started. In the sip.conf, I have explicitly define bindaddr=172.20.255.40 but sometimes I see packets coming from physical IP 172.20.255.41
> I have both tcp and udp transport enabled 
> Here is the lsof -ni :5060 output 
> asterisk 2878 asterisk  613r  IPv4 40060683      0t0  TCP 172.20.255.41:52381->10.100.210.110:sip (ESTABLISHED)
> asterisk 2878 asterisk  528u  IPv4 29757779      0t0  TCP 172.20.255.41:55627->10.200.14.29:sip (ESTABLISHED)
> asterisk 2878 asterisk  530u  IPv4 19211854      0t0  TCP 172.20.255.40:sip->10.100.157.32:49227 (ESTABLISHED)
>  sip show settings
> Global Settings:
> ----------------
>   UDP Bindaddress:        172.20.255.40:5060
>   TCP SIP Bindaddress:    172.20.255.40:5060



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