Re: [dns-operations] DNSviz and G-root: EDNS issue?
On Tue, 12 Oct 2021 at 11:24, Keith Mitchell wrote: > > This might be a known intermittent IPv6 routing issue with DNSviz, do > you see this problem for v4 and/or v6 ? That would show up as a non-answer over IPv6, rather than an apparent PMTU/EDNS problem. ___ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations
Re: [dns-operations] DNSviz and G-root: EDNS issue?
On Tue, Oct 12, 2021 at 11:21:44AM -0400, Keith Mitchell wrote a message of 22 lines which said: > > (192.112.36.4, UDP_-_EDNS0_4096_D_KN)". > > > > Testing G-root/192.112.36.4 > This might be a known intermittent IPv6 routing issue with DNSviz, do you > see this problem for v4 and/or v6 ? v4 ___ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations
Re: [dns-operations] DNSviz and G-root: EDNS issue?
On 10/12/21 11:14 AM, Stephane Bortzmeyer wrote: DNSviz currently always flags the root with a warning "./DNSKEY (alg 8, id 14748): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (192.112.36.4, UDP_-_EDNS0_4096_D_KN)". Testing G-root/192.112.36.4 with the RIPE Atlas probes, bit DO and bufsize=4096 shows no evidence of a problem (and the answer is well below 4096 bytes). It seems it affects only the path between G-root and DNSviz. Any idea? This might be a known intermittent IPv6 routing issue with DNSviz, do you see this problem for v4 and/or v6 ? Keith ___ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations
[dns-operations] DNSviz and G-root: EDNS issue?
DNSviz currently always flags the root with a warning "./DNSKEY (alg 8, id 14748): No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. (192.112.36.4, UDP_-_EDNS0_4096_D_KN)". Testing G-root/192.112.36.4 with the RIPE Atlas probes, bit DO and bufsize=4096 shows no evidence of a problem (and the answer is well below 4096 bytes). It seems it affects only the path between G-root and DNSviz. Any idea? ___ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations
