Date: Mon, 14 Oct 2024 14:47:04 +0000 From: DaLynX <d@l.ynx.fr> To: questions@freebsd.org Subject: Shared IP jail and VNET jail cannot talk together through bridge Message-ID: <5BC5A5BE-849D-4B98-8A39-8BF923ABA523@l.ynx.fr>
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------LMLOEPSTGUWYRVUHU69Z9A6V7J3HDT Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello,=20 I am running into a strange network issue with jails on one host and canno= t figure out what I did wrong=2E I have two jails: - 104 is a shared IP jail (classic) with an alias on the host's em0 - 115 is a vnet jail with interface vnet0=2E192 There is a bridge0 bridge with em0 and vnet0=2E192 as members I cannot have the two jails talk together=2E More precisely, 115 -> 104 works, but not 104 -> 115=2E I did tests with netcat and tcpdump on the host's bridge0=2E I can see SYN packets from 104 getting sent repeatedly but no response=2E If I initiate from 115, I cannot see the initiation packet (??) but I can = see the SYN+ACK coming in repeatedly from 104 too=2E Any idea what's wrong and how to fix it? Kind regards,=20 DaLynX ------LMLOEPSTGUWYRVUHU69Z9A6V7J3HDT Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <!DOCTYPE html><html><body><div dir=3D"auto">Hello, <br><br>I am running in= to a strange network issue with jails on one host and cannot figure out wha= t I did wrong=2E<br><br>I have two jails:<br>- 104 is a shared IP jail (cla= ssic) with an alias on the host's em0<br>- 115 is a vnet jail with interfac= e vnet0=2E192<br><br>There is a bridge0 bridge with em0 and vnet0=2E192 as = members<br><br>I cannot have the two jails talk together=2E<br>More precise= ly, 115 -> 104 works, but not 104 -> 115=2E<br>I did tests with netca= t and tcpdump on the host's bridge0=2E<br>I can see SYN packets from 104 ge= tting sent repeatedly but no response=2E<br>If I initiate from 115, I canno= t see the initiation packet (??) but I can see the SYN+ACK coming in repeat= edly from 104 too=2E<br><br>Any idea what's wrong and how to fix it?<br><br= >Kind regards, <br>DaLynX</div></body></html> ------LMLOEPSTGUWYRVUHU69Z9A6V7J3HDT--
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