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#289 4.2.3: snmpwalk "OID not increasing" in ipv6 suppo
with certain pcb (socket connection table) settings,
4.2.3 snmpwalk will fail to go through MIBsand dies
with the following error, during tcpv6 MIB printing.
Error: OID not increasing:
snmpwalk from 4.1.2 does not exhibit the problem.
the attached tar.gz file contains two files:
- output-4.2.3, which is output from "snmpwalk -On
localhost public" with 4.2.3 snmpwalk and 4.2.3 snmpd
- output-4.1.2, which is output from the same command
with 4.1.2 snmpwalk and 4.2.3 snmpd
the platform I have is as follows (netbsd-current as of
jan 9, 2002)
NetBSD starfruit.itojun.org 1.5ZA NetBSD 1.5ZA
(STARFRUIT) #: Wed Jan 9 15:16:48 JST 2002
itojun@starfruit.itojun.org:/usr/home/itojun/NetBSD/src/sys/arch/i386/compile/STARFRUIT
i386
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No file is attached :-(
Isn't snmpwalk right, so that the problem is in the agent
returning oids out of order?
Output from 4.1.2 and 4.2.3 snmpwalk
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Checking the end of your output-4.2.3:
.1.3.6.1.2.1.6.15.0 = Counter32: 2965
.1.3.6.1.2.1.6.16.1.1.63.254.128.32.0.0.0.1.2.144.39.255.254.150.28.225.51124.63.254.128.32.0.0.0.1.2.8.199.255.254.164.156.150.22.0.5
= 3ffe:8020:0:1:290:27ff:fe96:1ce1
.1.3.6.1.2.1.6.16.1.1.63.254.128.32.0.0.0.1.2.144.39.255.254.150.28.225.50478.63.254.128.32.16.255.0.1.2.174.208.255.254.0.0.59.22.0.5
= 3ffe:8020:0:1:290:27ff:fe96:1ce1
these two are clearly out of order lexicographically (51124
> 50478), so the bug is at the agent side. The 4.1.2 version
shows the same error in returned data, it is just that
snmpwalk ignores the error.
You can make the 4.2.3 version ignore the problem too, by
using the -Cc option.
If you could fix the bug in the agent, it would be even
better. We dont really do more with the IPv6 module than
check if it compiles.
/Niels
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I have the same problem with version 5.0.6 on FreeBSD
4.5-RELEASE-p16, net-snmp port version from 23.10.2002. -Cc
helps.
snmpwalk -v 1 -c private localhost
.....
UDP-MIB::udpLocalPort.0.0.0.0.161 = INTEGER: 161
UDP-MIB::udpLocalPort.0.0.0.0.4813 = INTEGER: 4813
IPV6-UDP-MIB::ipv6UdpLocalAddress.'................'.4813.0
= STRING: 0:0:0:0:0:0:0:0
IPV6-UDP-MIB::ipv6UdpLocalAddress.'................'.161.0 =
STRING: 0:0:0:0:0:0:0:0
Error: OID not increasing:
IPV6-UDP-MIB::ipv6UdpLocalAddress.'................'.4813.0
>= IPV6-UDP-MIB::ipv6UdpLocalAddress.'................'.161.0
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If you can extract the V5-1-patches branch, that source base
has *BSD fixes applied which appear to work.
Your input is welcomed.
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The suggested code is attached here for review.
describes the patch
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Thanks for the bug report! We've fixed the problem in the
5.1.x code branch and the main development tree,
so it should be fixed in future releases of the net-snmp package.
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Status is pending as problem may still exist for 4.2 and 5.0
branches.