2021-01-29 20:32:23 +00:00
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digraph G {
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node [ shape=box ]
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label="Why IPv6 upstream on test devices does not work
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2021-02-06 12:17:47 +00:00
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ICMP works as it's on 1 reply
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SSH does not work
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Testdev only receives first syn, not 2nd ack packet
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Notebook receives duplicated syn-ack packets from testdev
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Likely problem: router does not see return packet and drops the packet, no session entry?
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It's an outgoing packet, so this should not be a problem
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Router seems only to send first syn packet from the client
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2021-01-29 20:32:23 +00:00
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VERIFIED by disabling ip6tables / flushing rules"
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notebook [ label="Notebook: 2a0a:e5c0:13::a/64" ]
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router [ label="Router: 2a0a:e5c0:13::42/64" ]
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testdev [ label="Testdev: 2a0a:e5c0:13::zz/64" ]
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vpnserver [ label="VPN server" ]
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vpnserver->testdev [ label="Route for 2a0a:e5c1:VPN::/48" ]
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notebook->router [ label="1. Connect to 2a0a:e5c1:VPN::42\nWith MAC
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of router" ]
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router->vpnserver [ label="2. Forwarding packing for Testdev to
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router" ]
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vpnserver->testdev [ label="3. Forwarding packing for Testdev via
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VPN" ]
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testdev->notebook [ label="4. Reply directly to notebook\n
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testdev has same local network as notebook
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Using a different mac address than the router has" ]
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}
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