[atlas] Probe DHCPv6 support
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Michel Stam
mstam at ripe.net
Thu May 18 16:41:58 CEST 2023
Hi Simon, I was actually thinking about the server side, not the client side. The client side I’ll figure out, I have some experience with OpenWRT ;) Do you have examples for that on relevant DHCPv6 implementations? Regards, Michel > On 15 May 2023, at 20:57, Simon Brandt via ripe-atlas <ripe-atlas at ripe.net> wrote: > > Hi Michel, > > sorry, i don't have an OpenWrt device that's using DHCPv6 in client mode. > But it should be easy. Make sure the 'odhcp6c' package is installed (which is the case by default). > Then change the protocol option for the interface: > > /etc/config/network > > config interface 'eth0' > option proto 'dhcpv6' > > Check out this link to see als available options for the DHCPv6 client mode: > https://openwrt.org/docs/guide-user/network/ipv6/configuration#protocol_dhcpv6 > > > As far is i can see, you can only use OpenWrt in DHCPv4 client mode OR in DHCPv6 client mode. So i guess, you have to write a small script. First try DHCPv6 and check if you can successfully get a configuration. If not, fall back to DHCPv4. Continuously toggle between DHCPv6 and DHCPv4 as long as you don't get a configuration. I would begin this loop with DHCPv6. Also keep in mind, that some DHCP server respond slow, so better wait a little bit, before switching the protocol. > > > BR, > Simon > > > > On 15.05.23 09:12, Michel Stam wrote: >> Hi, >> >> Good discussion! >> >> I’m currently looking at basing all the probes (3, 4 and 5) on OpenWRT 22.03 which is the latest stable. What I’ll do is take this along in the deliberations, and see if I can fit this into the firmware image somehow. >> >> Simon: can you provide the exact setup you use for testing? (Config snippets etc) I typically don’t have a problem on my setup here, but thats RA + DHCPv6, I don’t use DHCPv6 for the actual assignment. >> >> Regards, >> >> Michel >> >>> On 9 May 2023, at 20:27, Simon Brandt via ripe-atlas <ripe-atlas at ripe.net> <mailto:ripe-atlas at ripe.net> wrote: >>> >>> That should be "odhcp6c" >>> >>> https://openwrt.org/packages/pkgdata/odhcp6c >>> https://github.com/openwrt/odhcp6c >>> >>> >>> BR, >>> Simon >>> >>> On 09.05.23 20:22, Philip Homburg wrote: >>>> >>>> In any case, Atlas probes run a stripped down version of OpenWRT. It may help >>>> if somebody can figure out which OpenWRT packages need to be added to >>>> enable DHCPv6. >>> >>> -- >>> ripe-atlas mailing list >>> ripe-atlas at ripe.net <mailto:ripe-atlas at ripe.net> >>> https://lists.ripe.net/mailman/listinfo/ripe-atlas >> > > -- > ripe-atlas mailing list > ripe-atlas at ripe.net > https://lists.ripe.net/mailman/listinfo/ripe-atlas -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.ripe.net/ripe/mail/archives/ripe-atlas/attachments/20230518/68cf2ce8/attachment.html>
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