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--- lpi2:routing [2023/12/05 13:46]
127.0.0.1 Externe Bearbeitung
+++ lpi2:routing [2024/04/27 13:00]
ingo_wichmann
@@ Zeile 1: / Zeile 1: @@
+====== 5 Routen ======
+{{ :lpi2:routing5.svg |}}
+===== "Router" anlegen =====
+  ip netns add a
+  ip netns add b1
+  ip netns add b2
+  ip netns add c
+===== "Kabel" verlegen =====
+  ip link add a0    type dummy
+  ip link add a-b1  type veth peer name b1-a
+  ip link add a-b2  type veth peer name b2-a
+  ip link add b1-b2 type veth peer name b2-b1
+  ip link add b1-c  type veth peer name c-b1
+  ip link add b2-c  type veth peer name c-b2
+  ip link add c0    type dummy
+  ip link set dev a0    netns a
+  ip link set dev a-b1  netns a
+  ip link set dev a-b2  netns a
+  ip link set dev b1-a  netns b1
+  ip link set dev b1-b2 netns b1
+  ip link set dev b1-c  netns b1
+  ip link set dev b2-a  netns b2
+  ip link set dev b2-b1 netns b2
+  ip link set dev b2-c  netns b2
+  ip link set dev c-b1  netns c
+  ip link set dev c-b2  netns c
+  ip link set dev c0    netns c
+===== Terminal a konfigurieren =====
+  ip netns exec a /bin/bash
+  export PS1="${debian_chroot:+($debian_chroot)}\u@ns-a-:\w\$ "
+  sysctl -w 'net.ipv6.conf.all.forwarding=1'
+  ip link set up dev a0
+  ip link set up dev a-b1
+  ip link set up dev a-b2
+  ip addr add fc0a::a/64 dev a0
+  ip addr add fc01::a/64 dev a-b1
+  ip addr add fc02::a/64 dev a-b2
+Prüfen:
+  ip -6 -c addr show
+===== Terminal b1 konfigurieren =====
+  ip netns exec b1 /bin/bash
+  export PS1="${debian_chroot:+($debian_chroot)}\u@ns-b1-:\w\$ "
+  sysctl -w 'net.ipv6.conf.all.forwarding=1'
+  ip link set up dev b1-a
+  ip link set up dev b1-b2
+  ip link set up dev b1-c
+  ip addr add fc01::b1/64 dev b1-a
+  ip addr add fc03::b1/64 dev b1-b2
+  ip addr add fc04::b1/64 dev b1-c
+Prüfen:
+  ip -6 -c addr show
+  ip -6 -c route show
+  ping -qc1 fc01::a
+===== Terminal b2 konfigurieren =====
+  ip netns exec b2 /bin/bash
+  export PS1="${debian_chroot:+($debian_chroot)}\u@ns-b2-:\w\$ "
+  sysctl -w 'net.ipv6.conf.all.forwarding=1'
+  ip link set up dev b2-a
+  ip link set up dev b2-b1
+  ip link set up dev b2-c
+  ip addr add fc02::b2/64 dev b2-a
+  ip addr add fc03::b2/64 dev b2-b1
+  ip addr add fc05::b2/64 dev b2-c
+Prüfen:
+  ip -6 -c addr show
+  ip -6 -c route show
+  ping -qc1 fc02::a
+  ping -qc1 fc03::b1
+===== Terminal c konfigurieren =====
+  ip netns exec c /bin/bash
+  export PS1="${debian_chroot:+($debian_chroot)}\u@ns-c-:\w\$ "
+  sysctl -w 'net.ipv6.conf.all.forwarding=1'
+  ip link set up dev c-b1
+  ip link set up dev c-b2
+  ip link set up dev c0
+  ip addr add fc04::c/64 dev c-b1
+  ip addr add fc05::c/64 dev c-b2
+  ip addr add fc0c::c/64 dev c0
+Prüfen:
+  ip -6 -c addr show
+  ip -6 -c route show
+  ping -qc1 fc04::b1
+  ping -qc1 fc05::b2
+====== 8 Routen ======
 {{:fortgeschrittene:pasted:20230818-145100.png}}
   ip netns add a

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