[Cerowrt-devel] ipv6 on comcast with 18.06.1
dave.taht at gmail.com
Mon Oct 1 13:22:38 EDT 2018
On Mon, Oct 1, 2018 at 10:13 AM Michael Richardson <mcr at sandelman.ca> wrote:
> Dave Taht <dave.taht at gmail.com> wrote:
> > hmm... bad udp checksum???
> With some capture mechanisms, tcpdump gets bogus values because the hardware
> did the checksums. I wouldn't imagine that we have hardware checksum offload
> on openwrt devices, but could be.
> Or it's a real issue.
Checksums were good on the mips device I have not getting internal dhcpv6pd,
(dhcpv6 and slaac work on the external interface)...
but I didn't check them all, and it's possible the pool is exhausted.
Wasn't planning on doing this today! Hoped it was a firewall rule, frankly. :(
> > :/tmp# 09:12:17.404257 IP6 (flowlabel 0xdfff4, hlim 1, next-header UDP
> > (17) payload length: 159) fe80::20d:b9ff:fe43:a06c.546 > ff02::1:2.547:
> > [bad udp cksum 0x58f4 -> 0xc4a1!] On Mon, Oct 1, 2018 at 9:12 AM Dave
> > Taht <dave.taht at gmail.com> wrote:
> Did you capture with -i device, or -i any?
> ] Never tell me the odds! | ipv6 mesh networks [
> ] Michael Richardson, Sandelman Software Works | network architect [
> ] mcr at sandelman.ca http://www.sandelman.ca/ | ruby on rails [
CEO, TekLibre, LLC
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