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doc:appunti:net:ipv6_on_ppp [2024/07/05 15:33] – [Troubleshooting IPv6 problems] niccolodoc:appunti:net:ipv6_on_ppp [2024/07/05 15:37] (current) – [Troubleshooting IPv6 problems] niccolo
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 <code> <code>
-ping -6 2a01:4f8:1c17:7636::1+# ping -6 2a01:4f8:1c17:7636::1
 </code> </code>
  
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 <code> <code>
-ip -6 address show dev enp0s7+# ip -6 address show dev enp0s7
 </code> </code>
  
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 <code> <code>
-ip -6 route show +# ip -6 route show
-</code> +
- +
-<code>+
 2a02:2420:503:1c03::2 dev enp0s7 proto kernel metric 256 pref medium 2a02:2420:503:1c03::2 dev enp0s7 proto kernel metric 256 pref medium
 2a02:2420:503:1c03::/64 dev enp0s7 proto kernel metric 256 expires 86387sec pref medium 2a02:2420:503:1c03::/64 dev enp0s7 proto kernel metric 256 expires 86387sec pref medium
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 </code> </code>
  
-**NOTICE**: The default router can be reached via its **link** scope address (as above) or via its **global** scope address, both can be used.+**NOTICE**: The default router can be reached via its **link** scope address (as seen above) or via its **global** scope address: both can be used.
  
-If you sniff the ping request on the router, you can see the problem:+If you sniff the ping request on the router, you can see the problem more clearly:
  
 <code> <code>
 +# tcpdump -i eth0 -n 'icmp6'
 +...
 IP6 fe80::225:22ff:fedd:4598 > 2a01:4f8:1c17:7636::1: ICMP6, echo request, IP6 fe80::225:22ff:fedd:4598 > 2a01:4f8:1c17:7636::1: ICMP6, echo request,
     id 56698, seq 1, length 64     id 56698, seq 1, length 64
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 </code> </code>
  
-the client uses its link scope address as source address, which causes the **beyond scope** error. You can confirm this problem on the client using the ''ip route get'' command:+The client uses its link scope address as source address, which causes the **beyond scope** error. You can confirm this problem on the client using the ''ip route get'' command:
  
  
 <code> <code>
-ip -6 route get 2a01:4f8:1c17:7636::1+# ip -6 route get 2a01:4f8:1c17:7636::1
 2a01:4f8:1c17:7636::1 from :: 2a01:4f8:1c17:7636::1 from ::
     via 2a02:2420:503:1c03::1     via 2a02:2420:503:1c03::1
Line 642: Line 641:
  
 <code> <code>
-ip -6 route get 2a01:4f8:1c17:7636::1+# ip -6 route get 2a01:4f8:1c17:7636::1
 2a01:4f8:1c17:7636::1 from :: 2a01:4f8:1c17:7636::1 from ::
     via fe80::d003:a6ff:fef2:6fe8     via fe80::d003:a6ff:fef2:6fe8
doc/appunti/net/ipv6_on_ppp.1720186415.txt.gz · Last modified: 2024/07/05 15:33 by niccolo