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generic/ubuntu2004 disables ipv6 for loopback #195

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comotion opened this issue May 6, 2021 · 1 comment
Open

generic/ubuntu2004 disables ipv6 for loopback #195

comotion opened this issue May 6, 2021 · 1 comment

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@comotion
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comotion commented May 6, 2021 •
edited

Debugging a rather obscure issue here (grpc/grpc#26175) I found that
generic/ubuntu2004 sets net.ipv6.conf.lo.disable_ipv6=1,
which causes the loopback address to not have the ::1 address, even though other interfaces have working IPv6. It's probably related to #79 for legacy reasons, but creates issues that are pretty hard to debug.
@waipeng
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waipeng commented Jun 3, 2021

Thanks for opening this issue, it helped me to debug quite and obscure error too!

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@comotion @waipeng