SNMP no Response

Vlasglass · September 9, 2011, 11:49am

Hello! SNMP not worked on RB1000 RouterOS v5.5. Please help!

 /snmp print 
         enabled: yes
         contact: your@mail.com
        location: SomeCountry
       engine-id: 
     trap-target: 0.0.0.0
  trap-community: test1818
    trap-version: 1

/system> /snmp community print 
 # NAME                        ADDRESS                                                            SECURITY   READ-ACCESS
 0 test1818                    0.0.0.0/0                                                          none       yes        

snmpwalk -v2c -c test1818 xx.xx.xx.xx
Timeout: No Response from xx.xx.xx.xx

janisk · September 9, 2011, 12:21pm

have you tried 5.6 or 5.7 when released where it is working.

Chupaka · September 9, 2011, 12:43pm

what’s in Firewall Filter (input and output chains)?

Vlasglass · September 9, 2011, 12:56pm

There are only two rules

/ip firewall filter print 
Flags: X - disabled, I - invalid, D - dynamic 
 0 X ;;; place hotspot rules here
     chain=unused-hs-chain action=passthrough 

 1   chain=forward action=drop src-address-list=IX_Users dst-address-list=!IX 

 2   chain=forward action=accept src-address=172.100.30.0/24 dst-address=172.100.30.0/24

Vlasglass · September 12, 2011, 6:13am

updated 5.6 , snmp not worked.

fuzzbawl · September 13, 2011, 8:11pm

I am also having issues with SNMP on an RB750 with 5.6.

/snmp print
enabled: yes
contact: netops
location: Site 239
engine-id:
trap-target: 0.0.0.0
trap-community: public
trap-version: 1

/snmp community print terse
0 name=public address=0.0.0.0/0 security=none read-access=yes write-access=no authentication-protocol=MD5 encryption-protocol=DES authentication-password=“” encryption-password=“”

Vlasglass · September 14, 2011, 5:03am

I need to see the CPU usage over time. I can not find the cpu-load oid.

[admin@MikroTik] > /system resource print oid
           uptime: .1.3.6.1.2.1.1.3.0
  total-hdd-space: .1.3.6.1.2.1.25.2.3.1.5.131073
   used-hdd-space: .1.3.6.1.2.1.25.2.3.1.6.131073
     total-memory: .1.3.6.1.2.1.25.2.3.1.5.65536
      used-memory: .1.3.6.1.2.1.25.2.3.1.6.65536
[admin@MikroTik] >

janisk · September 14, 2011, 1:09pm

> /sy resource cpu print oid

this in turn will allow watch load on each core

franzinha · October 20, 2011, 8:07pm

I have the same problem.

Snmp stopped responding after I updated from version 4.11 to 5.7

I did not understand the part of the SNMP Security Community
When using None, Authorized Private
I found nothing on the internet regarding this

honzam · October 21, 2011, 6:37am

I have the same problem with rb800 with 5.7. No SNMP response

kellogs · December 31, 2011, 11:23am

i have the same problem too 5.11

any help?

O1DMBFan · January 5, 2012, 3:20pm

Same problem RB800 5.11. It’s the only board on our dude without SNMP details. Please advise.

dshea · January 18, 2012, 11:12pm

We just started using a brand-new MikroNOC 8400 with RouterOS 5.2 to replace a very stressed RB493AH running RouterOS 3.30, and I'm encountering the same issue. It won't respond to SNMP queries or walks: "Timeout: No Response from xx.xx.xx.xx." The new router was configured from the backup of the old one, which didn't have this problem.

SMNP is enabled, the community string is correct, no security, and it should work with v1, but I get nothing. I even tried setting Authentication and Encryption and using v3, just to cover all the bases, but again, no response.

I see some other SNMP issues covered in the changelog, but not this one. All the other Mikrotiks I am using work just fine. Am I missing something obvious? Has this been solved?

Thanks,
Darren
Western Broadband

[admin@loc] /snmp> print
enabled: yes
contact: "www.ecpi.com"
location: "buzzard"
engine-id: ""
trap-target: 0.0.0.0
trap-community: xxxx-xxxx
trap-version: 1
[admin@loc] /snmp> community
[admin@loc] /snmp community> print

NAME ADDRESS SECURITY READ-ACCESS

0 xxxx-xxxx 0.0.0.0/0 none yes

janisk · January 19, 2012, 1:57pm

use 5.11 for SNMP, as 5.10 received SNMP changes.

dshea · January 19, 2012, 4:25pm

Here’s an update:

This morning, I connected to the other brand-new MikroNOC 8400 with 5.2, with the intent of upgrading this one to 5.11 in hopes that would solve the SNMP problem. Just out of curiosity, before I installed the upgrade, I tried to do an snmpwalk on it, figuring it would not work, and giving me a decent baseline. Nope - this one doesn’t have the problem.

I made sure that the SNMP settings (as shown by export) are identical between the two routers, and the only firewall filter rule that appears at all relevant is identical (action=accept chain=input comment=UDP disabled=no protocol=udp).

I can pass an snmpwalk request through the problem router to a device on the other side, and it works - so that also suggests this isn’t a firewall blocking issue.

So now, I can still do the upgrade, but it looks as though the RouterOS version 5.2 is not the sole cause of the problem, and I am not confident that the newer OS will solve it. I feel like I am missing the important key to the puzzle, and the solution is just beyond my reach. Any ideas?

SNMP settings:

/snmp
set contact=ecpi enabled=yes engine-id=“” location=Austin trap-target=0.0.0.0
trap-version=1
/snmp community
set xxxx-xxxx address=0.0.0.0/0 authentication-password=“”
authentication-protocol=MD5 encryption-password=“” encryption-protocol=
DES name=xxxx-xxxx read-access=yes security=none write-access=no

janisk · January 20, 2012, 10:03am

most probably not.

have you any firewall filters in input or output chain?

also, can you try with sniffer to see if snmp is receiving and responding.

There are no confirmed issues with SNMP in any release of RuterOS, just that some OIDs has been changed to comply with publicly available MIB files.

If anything, try to reinstall router using netinstall tool.

syadnom · January 22, 2012, 5:35pm

Same here, v5.11 on most everything.

I run torch on the target device and then snmpwalk it, the routeros device receives the packets but doesnt respond.

This is hit-or-miss, some devices replace to the snmpwalk, others dont. Identical setups, zero nat, no blocking firewall rules. Smells like a bug.

FYI, some of the devices that dont work did for a short time, then with no warning just stopped replying to snmp.

syadnom · January 22, 2012, 5:36pm

Same here, v5.11 on most everything.

I run torch on the target device and then snmpwalk it, the routeros device receives the packets but doesnt respond.

This is hit-or-miss, some devices replace to the snmpwalk, others dont. Identical setups, zero nat, no blocking firewall rules. Smells like a bug.

FYI, some of the devices that dont work did for a short time, then with no warning just stopped replying to snmp.

nest · January 22, 2012, 9:28pm

Which ones?

janisk · January 25, 2012, 2:38pm

depends on from what version you want to know.

for example 5.10 to 5.12 was no changes to oids. Some where added for UPS monitoring, and that is it.

also, check how large are data structures you are attempting to get and how often you attempt to do that.