Our customer has the Vigor 2925n with firmware 3.8.0.1

WAN1 MTU is set to 1432 and uses a Static IP address set up (which plus into an ADSL line bonding CPE device).

All DoS features are disabled.


I notice that if I do ping -n 1 -l 1500 www.google.com (from Windows) or the equivalent from Linux, then the router instantly reboots.


If I enable DoS protection and enable Block Ping of Death then this reboot does not seem to occur.

Is this a known issue?

Seems fine on my 2925 running 3.8.2 RC4 with an MTU of 1500 with DoS features disabled

C:\Users\matth_000>ping -n 1 -l 1500 www.google.com

Pinging www.google.com [2.127.252.212] with 1500 bytes of data:
Reply from 2.127.252.212: bytes=1500 time=13ms TTL=61

Ping statistics for 2.127.252.212:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 13ms, Maximum = 13ms, Average = 13ms


C:\Users\matth_000>ping -n 1 -l 2500 www.google.com

Pinging www.google.com [2.127.252.212] with 2500 bytes of data:
Reply from 2.127.252.212: bytes=2500 time=23ms TTL=61

Ping statistics for 2.127.252.212:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 23ms, Maximum = 23ms, Average = 23ms