On Thu, 27 Jan 2000 23:06:22 -0500
Adam Rothschild <asr@latency.net> wrote:
try ip mtu instead of "mtu"
> Hi,
>
> Most likely a lame question resulting from oversight on my end, but here
> goes:
>
> I have a GRE/IP tunnel between a 7206VXR [running 12.0(8)S] and a 2611
> [running 12.0(8)]. On the 7206, 'sh in' output is:
>
> MTU 1514 bytes, BW 10000 Kbit, DLY 500000 usec, rely 255/255, load 1/255
> Encapsulation TUNNEL, loopback not set
> Keepalive set (10 sec)
> ...
> Tunnel protocol/transport GRE/IP, key disabled, sequencing disabled
> Checksumming of packets enabled, fast tunneling enabled
>
> On the 2611:
>
> MTU 1472 bytes, BW 10000 Kbit, DLY 500000 usec, rely 255/255, load 1/255
> Encapsulation TUNNEL, loopback not set, keepalive set (10 sec)
> ...
> Tunnel protocol/transport GRE/IP, key disabled, sequencing disabled
> Checksumming of packets enabled, fast tunneling enabled
>
> MTU cannot be set on these tunnel interfaces. This discrepancy is causing
> bad transmission-related things to happen, as would be expected.
>
> Any advice/insight would be greatly appreciated.
>
> Thanks in advance,
> -adam
>
-- Neil J. McRae C O L T I N T E R N E T neil@COLT.NET
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