[Kea-users] DHCP4_PACKET_SEND_FAIL sendmsg() returned with an error: No route to host

[Joshua Schaeffer]

On 5/11/20 2:04 PM, Brian Hechinger wrote:
> Watching packet capture on the switch it doesn't even attempt to send the packet at all.
Do you mean that you can see the packet show up on the switch interface but it never gets forwarded, or that the packet never gets to the switch in the first place?
> 2020-05-11 19:54:00.364 ERROR [kea-dhcp4.packets/12756] DHCP4_PACKET_SEND_FAIL [hwtype=1 a8:20:66:25:d5:ca], cid=[01:a8:20:66:25:d5:ca], tid=0xbff6ccb9: failed to send DHCPv4 packet: pkt4 send failed: sendmsg() returned  with an error: No route to host
That's curious. Perhaps you could provide some more troubleshooting information?
- Do you have multiple interfaces on the DHCP server or multiple routing tables? `ip rule list`
- What does your routing table show? `ip route show` and `ip route get 10.42.3.1`
- What does a traceroute show? `traceroute 10.42.3.1`
- How is Kea's interfaces-config map configured in kea-dhcp4.conf?

-- 
Thanks,
Joshua Schaeffer

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/kea-users/attachments/20200511/0ecb9041/attachment.htm>