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| − | =Vorarbeiten=
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| − | ==Hostadapter==
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| − | *File
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| − | **Host Network Manager
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| − | ***Create
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| − | [[Datei:Unix-linux.png|700px]]
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| − |
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| | =Netzwerk der Schulung= | | =Netzwerk der Schulung= |
| | {{#drawio:ul2}} | | {{#drawio:ul2}} |
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| | {{#drawio:ul-tag-5}} | | {{#drawio:ul-tag-5}} |
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| − | =TCPDUMP auf rechter Firewall mit und ohne IP FORWARDING=
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| − | ;ip_forward an
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| − | *echo 1 > /proc/sys/net/ip4/ip_forward
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| − | ;äussere Schnittstelle
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| − | *tcpdump -n -c 2 -i enp0s3 icmp
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| − | tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
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| − | listening on enp0s3, link-type EN10MB (Ethernet), snapshot length 262144 bytes
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| − | 09:12:55.057180 IP 10.0.21.21 > 10.0.22.21: ICMP echo request, id 11437, seq 500, length 64
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| − | 09:12:55.057909 IP 10.0.22.21 > 10.0.21.21: ICMP echo reply, id 11437, seq 500, length 64
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| − | 2 packets captured
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| − | 2 packets received by filter
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| − | 0 packets dropped by kernel
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| − | ;innere Schnittstelle
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| − | *tcpdump -n -c 2 -i enp0s8 icmp
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| − | tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
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| − | listening on enp0s8, link-type EN10MB (Ethernet), snapshot length 262144 bytes
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| − | 09:12:55.057180 IP 10.0.21.21 > 10.0.22.21: ICMP echo request, id 11437, seq 500, length 64
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| − | 09:12:55.057909 IP 10.0.22.21 > 10.0.21.21: ICMP echo reply, id 11437, seq 500, length 64
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| − | 2 packets captured
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| − | 2 packets received by filter
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| − | 0 packets dropped by kernel
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| − | ;ip_forward aus
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| − | *echo 0 > /proc/sys/net/ip4/ip_forward
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| − | ;äußere Schnittstelle
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| − | *tcpdump -n -c 2 -i enp0s3 icmp
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| − | tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
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| − | listening on enp0s3, link-type EN10MB (Ethernet), snapshot length 262144 bytes
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| − | 09:13:54.225813 IP 10.0.21.21 > 10.0.22.21: ICMP echo request, id 11437, seq 559, length 64
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| − | 09:13:55.249847 IP 10.0.21.21 > 10.0.22.21: ICMP echo request, id 11437, seq 560, length 64
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| − | 2 packets captured
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| − | 2 packets received by filter
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| − | 0 packets dropped by kernel
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| − | ;innere Schnittstelle
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| − | *tcpdump -n -c 2 -i enp0s8 icmp
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| − | tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
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| − | listening on enp0s8, link-type EN10MB (Ethernet), snapshot length 262144 bytes
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![Bearbeiten](javascript:editDrawio("829581124", "ul2.drawio.png", "png", false, false, false, true, "https://embed.diagrams.net")){kind=link}
![Bearbeiten](javascript:editDrawio("801723380", "ul-tag-1.drawio.png", "png", false, false, false, true, "https://embed.diagrams.net")){kind=link}
![Bearbeiten](javascript:editDrawio("492494824", "ul-tag-2.drawio.png", "png", false, false, false, true, "https://embed.diagrams.net")){kind=link}
![Bearbeiten](javascript:editDrawio("1690964675", "ul-tag-3.drawio.png", "png", false, false, false, true, "https://embed.diagrams.net")){kind=link}
![Bearbeiten](javascript:editDrawio("1807409935", "ul-tag-4.drawio.png", "png", false, false, false, true, "https://embed.diagrams.net")){kind=link}
![Bearbeiten](javascript:editDrawio("64131262", "ul-tag-5.drawio.png", "png", false, false, false, true, "https://embed.diagrams.net")){kind=link}