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October 2025

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Re: [Freeswitch-users] FreeSWITCH-users Digest, Vol 202, Issue 2
by Adiseshu Channasamudhram 11 Oct '25

11 Oct '25

Please ignore this, I resolved this with a return route on the van Thanks A Sent from my iPhone > On Oct 11, 2025, at 8:00 AM, freeswitch-users-request(a)lists.freeswitch.org wrote: > > Send FreeSWITCH-users mailing list submissions to > freeswitch-users(a)lists.freeswitch.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > or, via email, send a message with subject or body 'help' to > freeswitch-users-request(a)lists.freeswitch.org > > You can reach the person managing the list at > freeswitch-users-owner(a)lists.freeswitch.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of FreeSWITCH-users digest..." > Today's Topics: > > 1. SBC not responding to syn (Adiseshu Channasamudhram) > <mime-attachment> > _________________________________________________________________________ > > The FreeSWITCH project is sponsored by SignalWire https://signalwire.com/ > Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services. > Build your next product on our scalable cloud platform. > > Join our online community to chat in real time https://signalwire.community/ > > Professional FreeSWITCH Services > sales(a)freeswitch.com > https://freeswitch.com/ > > Official FreeSWITCH Sites > https://freeswitch.com/oss > https://freeswitch.org/confluence > https://cluecon.com/ > > FreeSWITCH-users mailing list > FreeSWITCH-users(a)lists.freeswitch.org > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > https://freeswitch.com/

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SBC not responding to syn
by Adiseshu Channasamudhram 10 Oct '25

10 Oct '25

Hello Freeswitch experts ! I have a new setup as below and it is not responding to any syn request --------a-FS SBC-b—----------------External SBC In the above setup, the b side of the sbc has two IPs - one of them is a public IP External SBC is sending syn request to interface b and to the public IP and I can see this in the tcpdump on the FS SBC but I dont see the FS-SBC responding. When I do netstat, I do see the freeswitch listening on that IP and port. All the firewall stuff on the vm has been disabled Acl is updated on the fs. Any thoughts and suggestions will be greatly appreciated Regards A

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