Re: Kann Host im Freifunk-Netz nicht über dn42 erreichen

[David Lutz]

Hi Marek,

Schau mal ob es jetzt wieder geht…
Ich hab das GW3 mal durchgestartet.

Gruß
David


> Am 09.11.2025 um 20:12 schrieb Marek Küthe <icvpn at mk16.de>:
> 
> Hallo,
> 
> ich möchte den Host
> `10.119.2.225`/`fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed`, welcher über
> einen Ethernet-Anschluss an meinem Freifunk-Router (`ff3l-bandura`,
> `1459c0cd1605`) angeschlossen ist, über das IC-VPN bzw. das dn42
> erreichen - jedoch ohne Erfolg.
> 
> Bei dem Host handelt es sich um einen kleinen süßen OpenWrt-Router.
> 
> Von meinem dn42 Router:
> ```
> $ ping -c 10 10.119.2.225
> PING 10.119.2.225 (10.119.2.225) 56(84) bytes of data.
> From 10.119.0.4 icmp_seq=1 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=2 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=3 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=4 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=5 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=6 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=7 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=8 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=9 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=10 Destination Host Unreachable
> 
> --- 10.119.2.225 ping statistics ---
> 10 packets transmitted, 0 received, +10 errors, 100% packet loss, time
> 9158ms pipe 4
> $ traceroute -I 10.119.2.225
> traceroute to 10.119.2.225 (10.119.2.225), 30 hops max, 60 byte packets
> 1  gw3.ff3l (10.119.0.4)  14.162 ms  14.114 ms  14.095 ms
> 2  gw3.ff3l (10.119.0.4)  3075.367 ms !H  3074.780 ms !H  3074.762 ms
> !H
> ```
> 
> Von einem LG:
> ```
> mark22k at shell-de-fra2:~$ ping -c 10 10.119.2.225
> PING 10.119.2.225 (10.119.2.225) 56(84) bytes of data.
> From 10.119.0.4 icmp_seq=2 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=3 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=1 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=4 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=5 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=6 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=7 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=8 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=9 Destination Host Unreachable
> From 10.119.0.4 icmp_seq=10 Destination Host Unreachable
> 
> --- 10.119.2.225 ping statistics ---
> 10 packets transmitted, 0 received, +10 errors, 100% packet loss, time
> 9138ms pipe 4
> mark22k at shell-de-fra2:~$ traceroute -I 10.119.2.225
> traceroute to 10.119.2.225 (10.119.2.225), 30 hops max, 60 byte packets
> 1  172.17.128.1 (172.17.128.1)  0.515 ms  0.470 ms *
> 2  de-fra1.burble.dn42 (172.20.129.169)  1.955 ms * *
> 3  p2pnode.bandura.dn42 (172.22.149.225)  6.197 ms * *
> 4  gw3.ff3l (10.119.0.4)  3070.899 ms !H  3046.894 ms !H  3046.822 ms
> !H
> ```
> 
> Beide nehmen den gleichen Weg über GW3.
> 
> Über IPv6 funktioniert es:
> ```
> marek at p2pnode:~$ ping -c 10 fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed
> PING fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed
> (fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed) 56 data bytes 64 bytes from
> fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed: icmp_seq=1 ttl=63 time=23.8 ms
> 64 bytes from fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed: icmp_seq=2 ttl=63
> time=23.8 ms 64 bytes from fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed:
> icmp_seq=3 ttl=63 time=23.6 ms 64 bytes from
> fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed: icmp_seq=4 ttl=63 time=23.3 ms
> 64 bytes from fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed: icmp_seq=5 ttl=63
> time=31.4 ms 64 bytes from fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed:
> icmp_seq=6 ttl=63 time=23.8 ms 64 bytes from
> fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed: icmp_seq=7 ttl=63 time=23.1 ms
> 64 bytes from fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed: icmp_seq=8 ttl=63
> time=23.6 ms 64 bytes from fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed:
> icmp_seq=9 ttl=63 time=23.7 ms 64 bytes from
> fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed: icmp_seq=10 ttl=63 time=24.0 ms
> 
> --- fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed ping statistics ---
> 10 packets transmitted, 10 received, 0% packet loss, time 9012ms
> rtt min/avg/max/mdev = 23.133/24.413/31.425/2.350 ms
> marek at p2pnode:~$ traceroute -I fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed
> traceroute to fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed
> (fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed), 30 hops max, 80 byte packets
> 1  gw9.ff3l (fdc7:3c9d:b889:a272::a)  3.134 ms  3.065 ms * 2
> fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed
> (fdc7:3c9d:b889:a272:9683:c4ff:fe41:aed)  25.746 ms * *
> ```
> 
> Könnte sich das jemand anschauen?
> 
> Grüße
> Marek Küthe
> AS4242422923 in dn42