Weird but works

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Alex
2005-03-03
2013-05-28
  • Alex

    Alex - 2005-03-03

    This is from my isp (auna/Spain), i don't know much about snmp but it looks wrong (At 0x38f should be 0x14 instead of 0x15, and at 0x391 should be 0x12 instead of 0x13).

    0000360: 0000 0000 0b13 3011 060c 2b06 0102 0145 0106 0401 0b0a 0201  ......0...+....E........
    0000378: 060b 1330 1106 0c2b 0601 0201 4501 0604 010c 0a02 0100 0b15  ...0...+....E...........
    0000390: 3013 060c 2b06 0102 0145 0106 0401 0a02 0300 ffff 0b14 3012  0...+....E............0.
    00003a8: 060c 2b06 0102 0145 0106 0401 0e0a 0202 0087 0b14 3012 060c  ..+....E............0...

    that is decoded as:

    SnmpMibObject docsDevFilterIpDmask.10 IPAddress 0.0.0.0 ;
            SnmpMibObject docsDevFilterIpProtocol.10 Integer 6 ;
            SnmpMibObject docsDevFilterIpSourcePortLow.10 Integer 0 ;
            SnmpMibObject docsDevFilterIpDmask.2 BitString 0x ;
            GenericTLV TlvCode 20 TlvLength 48 TlvValue 0x12060c2b0601020145010604010e0a020200870b143012060c2b0601020145010604010f0a0202008b0b133011060c2b;
            /* CmMic 02014501060401020b0201040b133011; */
            DownstreamFrequency 17171457;

    It looks like my isp's fault, but, how is it possible that it works then? !!

    There is also some random junk at the end:
    0000810: 110b 1330 1106 0c2b 0601 0201 4501 0604 010c 0e02 0143 0b13  ...0...+....E........C..
    0000828: 3011 060c 2b06 0102 0145 0106 0401 0d0e 0201 430b 1330 1106  0...+....E........C..0..
    0000840: 0c2b 0601 0201 4501 0604 010e 0e02 0100 0b15 3013 060c 2b06  .+....E...........0...+.
    0000858: 0102 0145 0106 0401 0f0e 0203 00ff ff12 0103 1304 c5d0 cb0b  ...E....................
    0000870: 1404 0ad3 9890 0610 ed60 37dd d20e fea1 0c63 ffbd fd2f d71b  .........`7......c.../..
    0000888: 0710 db99 cce0 963a a927 a1f8 bc69 b3b7 a36d ff

    that is:

            MaxCPE 3;
            GenericTLV TlvCode 19 TlvLength 4 TlvValue 0xc5d0cb0b;
            GenericTLV TlvCode 20 TlvLength 4 TlvValue 0x0ad39890;
            /* CmMic ed6037ddd20efea10c63ffbdfd2fd71b; */
            /* CmtsMic db99cce0963aa927a1f8bc69b3b7a36d; */
            /*EndOfDataMkr*/

     
    • Evvolve SRL

      Evvolve SRL - 2005-06-24

      Are you sure the file was transferred in "binary" mode ? It looks like an ASCII FTP or TFTP transfer mangled the file.

       

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