From: Randall Parker 

John Beckett wrote:
>
> Probably, your news server was not lowering its packet size when some
> weirdness at Randall's end (PPPoE?) enforced a lower MTU than Randall's
> computer realised was required.

PPPoE? What's that?

>
> Randall could (given infinite time) find the setting to lower his MTU
> to what his overall system, including router, is capable of.

As Buckeroo Bonzai told John Warfarin "Time, I've got nothing but time".

[randall{at}localhost ~]$ /sbin/ifconfig eth0      Link encap:Ethernet  HWaddr
00:06:5B:A3:27:0B
           inet addr:192.168.0.11  Bcast:192.168.0.255  Mask:255.255.255.0
           inet6 addr: fe80::206:5bff:fea3:270b/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:42654 errors:0 dropped:0 overruns:1 frame:0
           TX packets:39191 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:31577110 (30.1 MiB)  TX bytes:6729358 (6.4 MiB)
           Interrupt:177 Base address:0x6c00

lo        Link encap:Local Loopback
           inet addr:127.0.0.1  Mask:255.0.0.0
           inet6 addr: ::1/128 Scope:Host
           UP LOOPBACK RUNNING  MTU:16436  Metric:1
           RX packets:2444 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2444 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:4446051 (4.2 MiB)  TX bytes:4446051 (4.2 MiB)

So I've got MTU:1500 on eth0. Can I lower it and see if that helps?


>
> Run 'ifconfig' to see the current value (MTU = 1500 for Ethernet, but
> should be reduced if you know your router is using PPPoE or some framing
> like IPSec, that reduces the amount of data that can be sent in a single
> Ethernet frame).
>
> John
>

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