Re: PPP --- TCP bad checksums
Michel Catudal (bbcat@netonecom.net)
Sun, 09 Aug 1998 17:06:20 -0400
Peter Broadbery wrote:
>
> Hi,
>
> I've noticed that I'm getting a lot of TCP bad checksums when
> connecting to the net via PPP. These started when I upgraded to
> 2.1.108 from 2.1.99. I'm running 2.1.115 at the moment, with the same
> problem. Is this a known problem, or is there any way of tracking
> this down further, preferably without putting excess strain on my
> 'phone bill?
>
> I'm using pppd-2.3.5, modem is a PNP internal modem (Supra SUP1650,
> apparently). System is tweaked RH5.1.
>
> Thanks,
> Peter.
>
> Aug 9 09:40:04 obscurity kernel: TCPv4 bad checksum from 199.165.129.193:0050 to 212.228.98.182:0447, len=1480/1480/1500
> Aug 9 09:40:38 obscurity kernel: TCPv4 bad checksum from 158.152.254.72:0077 to 212.228.98.182:0400, len=1466/1466/1486
> Aug 9 09:40:38 obscurity kernel: TCPv4 bad checksum from 158.152.254.72:0077 to 212.228.98.182:0400, len=1076/1076/1096
> Aug 9 09:40:40 obscurity kernel: TCPv4 bad checksum from 158.152.254.72:0077 to 212.228.98.182:0400, len=1480/1480/1500
> Aug 9 09:40:41 obscurity kernel: TCPv4 bad checksum from 158.152.254.72:0077 to 212.228.98.182:0400, len=1410/1410/1430
> Aug 9 09:40:41 obscurity kernel: TCPv4 bad checksum from 158.152.254.72:0077 to 212.228.98.182:0400, len=1420/1420/1440
> Aug 9 09:40:41 obscurity kernel: TCPv4 bad checksum from 158.152.254.72:0077 to 212.228.98.182:0400, len=1093/1093/1113
>
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Got a samilar setup here with similar problem. It goes into a stall
mode quite a bit also. This afternoon I was trying to access my web site
and it stalled loading the bottom pictures. The only cure has been
to disconnect and reconnect.
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