[srslte-users] host to host communication

[Charbel Lahoud]

Thank you for your reply.

I have already worked it around by applying => "iptables -A POSTROUTING -o eno1 -t nat -j MASQUERADE", on the UE virtual interface and on the interface connecting host 1 on the UE.

Now I am able to ping host 2 from host 1. In the opposite way, I can only ping from Host 2 to the virtual interface ip address of UE assigned by the core network. Any idea why I can't ping from Host 2 to Host 1 complete direction ? do I need to add a route on the ip table ?

Thank you.


From: Francois TABURET <francois.taburet at nokia-bell-labs.com>
Sent: Thursday, May 20, 2021 4:36 PM
To: Charbel Lahoud <charbel.lahoud at etit.tu-chemnitz.de>; srslte-users at lists.softwareradiosystems.com; openair5g-user <openair5g-user at lists.eurecom.fr>; openaircn-user <openaircn-user at lists.eurecom.fr>
Subject: Re: host to host communication


                You have one /24 network (10.10.10.x/24) split in two areas "connected" through another /24 network.  This is not consistent regarding ipV4 addressing.  The only way to workaround this kind of problem  is to use L2 tunneling between the two areas. Or you could define two sub-nets, but then you have to review your hosts addressing.

Difficult to tell more not knowing what you want to do. Also your schema is not that clear: ip addresses are applied on hosts interfaces, on the wireless access network  UE's usually get a private access and the gateway to the "rest of the world" (usually Internet) is a proxy.
On 20/05/2021 15:55, Charbel Lahoud wrote:
Hi,

any idea how shall I route the interfaces for accessing host 2 from host 1 (and vice versa) described in the attached photo. Thanks a lot.
Any suggestion will be appreciated.

Best regards
Charbel
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