snmptrap (V1) checksum errors

Shaiton <[email protected]>
Newsgroups gmane.network.net-snmp.user
Message-ID <[email protected]>
Hi there,

It has been 1 weeks that I tried to speak snmp with my Set Top Box, but I
can't.
I got the MIB, so I tried to sand many traps but  sometimes I got
"Authentification failed" (CAS authentification with an unknown server ..)

But I tried simple traps like

> # snmptrap -v 1 -c command 192.168.1.248:161 1.3 "" 6 6 ""
> 1.3.6.1.4.1.8711.101.13.1.3.8 s "message here"
>
which would write the message on the TV.
But I got a checksum error (while spying with wireshark).

Ok I don't know if I can specify the port number like that, if I don't,
with

> # snmptrap -v 1 -c command 192.168.1.248 1.3 "" 6 6 ""
> 1.3.6.1.4.1.8711.101.13.1.3.8 s "message here"
>
I get an ICMP message "Destination port unreachable" (from the STB to my
computer, where snmpd is running).

I'm sure that I am doing something wrong, but I don't know what :(.


snmpwalk answer me that I am not authentified ...

Regards,

Shaiton

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