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Subject: |
More on [kxchg: recv: Message too long] |
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From: |
Alexey Pushkin <Alexey.Pushkin,AT,altinex,DOT,no> |
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Date: |
Wed, 20 Jun 2001 13:05:40 +0200 |
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In-reply-to: |
<3B30643B.6010607@altinex.no> |
I have investigated this problem a bit,
it appeares that CIPE stops working ("kxchg: recv: Message too long")
when on one of the intermediate network segments the MTU is
set to a value less than 1500. I guess it shouldn't be like this, right ?
(The reason for changing MTU is to improve quality in a radio link)
Alexey Pushkin wrote:
> Hi, I get this error message ("kxchg: recv: Message too long")
> whenever I try to do SSH or IMAP to the peer. Ping works though :-)
>
> Could anybody please help me with this ?
>
> I'm using stock kernel & cipe from RedHat 7.1 CD that is
> kernel 2.4.2 , cipe 1.4.5.
>
> I also tried the latest cipe 1.5.2 with same success :-(
>
> With debug level 10 it looks like this:
>
> .....
> Jun 19 16:33:16 mererand kernel: cipcb: sa=217.68.102.228
> da=212.188.77.140 us=31123 ud=31123 ul=80
> Jun 19 16:33:16 mererand kernel: cipcb1: decrypt len=57 pad=7 typ=00
> Jun 19 16:33:16 mererand kernel: cipcb1: real src 10.1.1.4 dst 10.1.1.9
> len 57
> Jun 19 16:33:16 mererand kernel: cipcb1: encrypt typ 0 pad 7 len 704
> Jun 19 16:33:16 mererand ciped-cb[17392]: kxchg: recv: Message too long
> Jun 19 16:33:26 mererand kernel: cipcb1: encrypt typ 0 pad 3 len 520
> Jun 19 16:33:26 mererand kernel: cipcb1: returning 9 flags c31aff70
> Jun 19 16:33:26 mererand kernel: cipcb1: encrypt typ 2 pad 4 len 128
> Jun 19 16:33:26 mererand ciped-cb[17392]: kxchg: recv: Message too long
> Jun 19 16:33:26 mererand kernel: cipcb: sa=217.68.102.228
> da=212.188.77.140 us=31123 ud=31123 ul=296
> Jun 19 16:33:26 mererand kernel: cipcb1: decrypt len=274 pad=6 typ=02
> Jun 19 16:33:26 mererand kernel: cipcb1: returning 274 flags c31aff70
> Jun 19 16:33:26 mererand kernel: cipcb1: encrypt typ 2 pad 3 len 312
> Jun 19 16:33:26 mererand kernel: cipcb: sa=217.68.102.228
> da=212.188.77.140 us=31123 ud=31123 ul=88
> Jun 19 16:33:26 mererand kernel: cipcb1: decrypt len=65 pad=7 typ=02
> Jun 19 16:33:26 mererand kernel: cipcb1: returning 65 flags 0000
> Jun 19 16:33:29 mererand kernel: cipcb1: encrypt typ 0 pad 7 len 72
> Jun 19 16:33:32 mererand kernel: cipcb1: encrypt typ 0 pad 3 len 520
> Jun 19 16:33:32 mererand ciped-cb[17392]: kxchg: recv: Message too long
> .....
>
> Best, Alexey
>
>
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