I have an ASUS RT-N66U, I recently upgraded my firmware to 3.0.0.4.370_172-g85af9d0 and noticed that IPv6 started working, I have been delegated a /64 of which my PC (windows 7 64-bit) received a global IPv6 address that works.
When I did a packet capture just out of curiosity and excitement I noticed that my routers RA was configuring an MTU of 1300 which windows is honoring.
My question is, is this MTU setting coming from comcast and my router is just forwarding? Or is this an oversight by ASUS who just gives everything IPv6 an MTU of 1300 assuming that it's going to be using some sort of tunneling method ?
Is anyone else getting this MTU via RA?
Interface Local Area Connection Parameters
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IfLuid : ethernet_3
IfIndex : 34
State : connected
Metric : 10
Link MTU : 1300 bytes
Reachable Time : 43500 ms
Base Reachable Time : 30000 ms
Retransmission Interval : 1000 ms
DAD Transmits : 1
Site Prefix Length : 64
Site Id : 1
Forwarding : disabled
Advertising : disabled
Neighbor Discovery : enabled
Neighbor Unreachability Detection : enabled
Router Discovery : enabled
Managed Address Configuration : disabled
Other Stateful Configuration : enabled
Weak Host Sends : disabled
Weak Host Receives : disabled
Use Automatic Metric : enabled
Ignore Default Routes : disabled
Advertised Router Lifetime : 1800 seconds
Advertise Default Route : disabled
Current Hop Limit : 64
Force ARPND Wake up patterns : disabled
Directed MAC Wake up patterns : disabled
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