Adding a display-hint to the mib file might work. But with snmptrapd
printing out
> 22#011.1.3.6.1.4.1.45.1.6.5.3.12.1.3.1.22 = "`s\\/c("
it doesn't look like it's found the mibs.
> I also installed the needed MIBs in /usr/share/snmp/mibs
The default location for the mib files is /usr/local/share/snmp/mibs
In any case, once you've got snmptrapd reading the mibs try adding
DISPLAY-HINT "2x:"
to the definition of the variable. For example:
Ipv6Address ::= TEXTUAL-CONVENTION
DISPLAY-HINT "2x:"
STATUS current
DESCRIPTION
"This data type is used to model IPv6 addresses.
This is a binary string of 16 octets in network
byte-order."
SYNTAX OCTET STRING (SIZE (16))
Regards,
Lee
On 2/28/13, Meike Stone <meike.st...@googlemail.com> wrote:
> Hello dear list,
>
> I'm using snmptrapd and get link up/down from a Nortel Networks switch:
> The snmptrapd logs the traps in the logfile. But sometime, the value
> from the MAC-Address is misinterpreted (as string, eg. "`s\\/c(")
> In the network capture from tcpdump, the bytecode from a working trap
> and a not working trap looks like the same, except the bytes from the
> MAC itself.
>
> Working trap:
> 10.32.12.240(via UDP: [10.32.12.240]:4682->[10.216.17.90]) TRAP, SNMP
> v1, community public#012#011.1.3.6.1.4.1.45.1.6.2.1 Enterprise
> Specific Trap (5) Uptime:
> 48:17:31:03.16#012#011.1.3.6.1.4.1.45.1.6.5.3.12.1.1.1.2 =
> 1#011.1.3.6.1.4.1.45.1.6.5.3.12.1.2.1.2 =
> 2#011.1.3.6.1.4.1.45.1.6.5.3.12.1.3.1.2 = "50 26 90 9E 66 44 "
>
>
> Not working trap with wrong interpreted MAC:
> 10.22.2.240 (via UDP: [10.22.2.240]:2925->[10.216.17.90]) TRAP, SNMP
> v1, community public#012#011.1.3.6.1.4.1.45.1.6.2.1 Enterprise
> Specific Trap (5) Uptime:
> 33:21:06:58.47#012#011.1.3.6.1.4.1.45.1.6.5.3.12.1.1.1.22 =
> 1#011.1.3.6.1.4.1.45.1.6.5.3.12.1.2.1.22 =
> 22#011.1.3.6.1.4.1.45.1.6.5.3.12.1.3.1.22 = "`s\\/c("
>
>
> I straced the snmptrapd while recvmsg:
> recvmsg(8, {msg_name(16)={sa_family=AF_INET, sin_port=htons(3705),
> sin_addr=inet_addr("10.22.2.240")},
> msg_iov(1)=[{"0t\2\1\0\4\6public\244g\6\n+\6\1\4\1-\1\6\2\1@\4\n\26\2\360\2\1\6\2\1\5C\4\21\201\\V0G0\24\6\17+\6\1\4\1-\1\6\5\3\f\1\1\1\26\2\1\0010\24\6\17+\6\1\4\1-\1\6\5\3\f\1\2\1\26\2\1\0260\31\6\17+\6\1\4\1-\1\6\5\3\f\1\3\1\26\4\6`s\\/c(\5\21\1\5\4\0\4\6\0\37<\262\205w\1\1\3\1\2\1\1\1\3\201\23\2\1\23\0
>
>
> I also installed the needed MIBs in /usr/share/snmp/mibs
> - S5-ROOT-MIB.mib
> - SYNOPTICS-ROOT-MIB.mib
> and started the snmptrapd with -m ALL. But nothing changed (I used
> strace -f -e open to exterminate, if the MIBs are loaded).
> With this MIBs, I can use
>
> snmptranslate -m ALL .1.3.6.1.4.1.45.1.6.2.1
> S5-ROOT-MIB::s5EthTrap
>
> What is going wrong, does anyone has a clue?
>
> Thanks, Meike
>
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