[mrtg] mrtg 2.16 ipv6 on centos

[Florian]

Hi,

i'm running CentOS 6.0 on my server and installed mrtg from the
rpm-package mrtg-2.16.2 .
I also installed the packages perl-IO-Socket-INET6 perl-Socket6.

mrtg works fine with IPV4-Addresses. When i specify a Target by
IPV6-Address mrtg fails.

Here i have a small sample-config for V4 which is working:

LogDir: /tmp
ThreshDir: /tmp
HtmlDir: /tmp
ImageDir: /tmp
LogDir: /tmp
EnableIPv6: yes
Target[bai-gw-i-oct]: ifInOctets.1&ifOutOctets.1:abc123 at 85.237.138.221
Title[bai-gw-i-oct]: Test
MaxBytes[bai-gw-i-oct]: 100000000
----------------------------------------------------

Here the same for V6 which fails.
When running mrtg there is no snmp-packet sent to the network.

LogDir: /tmp
ThreshDir: /tmp
HtmlDir: /tmp
ImageDir: /tmp
LogDir: /tmp
EnableIPv6: yes
Target[bai-gw-i-oct]:
ifInOctets.1&ifOutOctets.1:abc123@[2001:b50:940f::f001]
Title[bai-gw-i-oct]: Test
MaxBytes[bai-gw-i-oct]: 100000000

# env LANG=C /usr/bin/mrtg /tmp/test.cfg
SNMP Error:
send_query: Address family not supported by protocol
SNMPv1_Session (remote host: "2001:b50:940f::f001"
[2001:b50:940f::f001].161)
                  community: "abc123"
                 request ID: 1156567655
                PDU bufsize: 8000 bytes
                    timeout: 2s
                    retries: 5
                    backoff: 1)
 at /usr/bin/../lib64/mrtg2/SNMP_util.pm line 492
SNMPGET Problem for ifInOctets.1 ifOutOctets.1 sysUptime sysName on
sni123@[2001:b50:940f::f001]
 at /usr/bin/mrtg line 2202
2011-09-03 14:13:01: ERROR: Target[bai-gw-i-oct][_IN_] '
$target->[0]{$mode} ' did not eval into defined data
2011-09-03 14:13:01: ERROR: Target[bai-gw-i-oct][_OUT_] '
$target->[0]{$mode} ' did not eval into defined data




With snmpwalk (net-snmp-utils) i can reach the device by IPV4 and IPV6.

Where is my mistake? Has anyone a hint?

Thanks in advance,
Florian