I have a tunneling tool that will encap an ipv4 packet in ipv6 packet. However I am not able to configure route to ipv6 next-hop
My next-hop is 2003::1:70:16:234, which is reachable
machine1:/tmp# ping6 2003::1:70:16:234 PING 2003::1:70:16:234(2003::1:70:16:234) 56 data bytes 64 bytes from 2003::1:70:16:234: icmp_seq=1 ttl=64 time=4.29 ms 64 bytes from 2003::1:70:16:234: icmp_seq=2 ttl=64 time=1.73 ms 64 bytes from 2003::1:70:16:234: icmp_seq=3 ttl=64 time=1.75 ms --- 2003::1:70:16:234 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2001ms rtt min/avg/max/mdev = 1.731/2.590/4.290/1.203 ms
As I try to add route so as to route ipv4 packet destined to 220.127.116.11/24 through next hop/gw as 2003::1:70:16:234/64, it fails
machine1:/tmp# route add -net 18.104.22.168/24 gw 2003::1:70:16:234/64 2003::1:70:16:234/64: **Unknown host <<<<<<<<<---- ERROR**
However when tried to set next hop as an IPv4 address, route add is successful.
machine1:/tmp# route add -net 22.214.171.124/24 gw 126.96.36.199 machine1:/tmp# route del -net 188.8.131.52/24 gw 184.108.40.206
Any input on what’s so fundamentally wrong in my route command ?
What’s fundamentally wrong here is that IPv4 and IPv6 are completely different protocols. You can’t route IPv4 traffic to IPv6 addresses.
I suspect you are trying to tunnel IPv4 traffic somewhere, but since you’ve given no details about that, it’s impossible to say anything further.
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