Munin & snmp switch monitoring

[sgrichkosey]

Hi all
I have installed munin and configure it to monitor Dlink DES-3550 switch through snmp.
I have used this doc as hand-book: http://munin.projects.linpro.no/wiki/Using_SNMP_plugins

But I have that in munin-update.log:
Could not connect to switch(10.90.90.92): Connection refused - Attempting to use old configuration

So, mu munin.conf:

============================================
dbdir /var/lib/munin
htmldir /var/www/html/munin
logdir /var/log/munin
rundir /var/run/munin

tmpldir /etc/munin/templates

everytime

somejuser@fnord.comm
anotheruser@blibb.comm

send_nsca.cfg

[localhost]
address 127.0.0.1
use_node_name yes

[switch]
address 10.90.90.92
use_node_name yes
============================================

and my munin-node.conf:

============================================

log_level 4
log_file /var/log/munin/munin-node.log
port 4949
pid_file /var/run/munin/munin-node.pid
background 1
setseid 1

host *
user root
group root
setsid yes

ignore_file ~$
ignore_file \.bak$
ignore_file %$
ignore_file \.dpkg-(tmp|new|old|dist)$
ignore_file \.rpm(save|new)$

allow ^127\.0\.0\.1$
allow ^10\.90\.90\.92$
allow ^10\.90\.90\.65$

============================================

please, help me, I don't know what can I do to fix it.
please, feel free asking any questions

P.S. may be something wrong on switch side? (snmp enabled, snmpwalk worked)

[falko]

It might be a problem with your router's firewall.

[sgrichkosey]

It was trouble with munin.conf
Router is ok
trouble fixed
this doc helps me: http://munin.projects.linpro.no/wiki...MonitorWindows