[outages] HE IPv6 tunnel PMTU issues with juniper.net
Gary Gapinski
gapinski at nasa.gov
Wed Oct 1 10:17:01 EDT 2014
On 10/01/2014 01:50 PM, Chuck Anderson via Outages wrote:
> While on my Hurricane Electric IPv6 tunnel, I cannot access
> juniper.net unless I change my local interface MTU. 1500 fails, but
> 1280 works. I noticed this a few days ago. Before that I had no
> problems with a 1500 MTU. Is anyone else seeing this issue?
No, but if your are using a 6in4 tunnel, the MTU should be 1480 (not 1500).
(I just successfully went to www.juniper.net via IPv6 with that MTU 1480.)
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