08-12-2011 07:04 AM - edited 03-04-2019 01:16 PM
Hello everyone,
I'm trying monitor some virtual interfaces frame-relay but my snmp application ( PRTG ) shows a error: no response SNMP. this error occur for any virtual interface frame-relay. the physics interface frame-relay it's working for get snmp.
what can is happening ? maybe I have do some configuration inside the interface virtual frame-relay to get snmp? follow a configuration exemplo from a virtual interface
interface Serial0/2/0.100 point-to-point
ip address 172.30.1.2 255.255.255.252
frame-relay interface-dlci 100
or get snmp it's work only for physics interface ?
any tip is welcome.
thanks
Solved! Go to Solution.
08-12-2011 01:48 PM
Hello Maicon,
If by "virtual interface frame-relay", you mean an subinterface of a serial interface configured for Frame Relay operation, then yes - any IP address on any router's interface can be used to contact the router.
What comes to my mind is whether all the subinterfaces and interfaces are in the up/up state. If an interface is not up/up, its IP address is not reachable despite being configured. Please use the show ip interface brief command to verify if all interfaces with IP address set are recognized as up/up. If they are something different, i.e. up/down, down/down, administratively down/down, then this problem must first be corrected, only then the IP address on that interface will become reachable.
Would it be possible to post your current configuration and the output of the show ip interface brief here? Also please perform the tests I asked you to do in my previous reply. Without all this additional information, it is very difficult to further find out the source of your problem.
Best regards,
Peter
08-12-2011 08:01 AM
Hello Maicon,
If I understand you correctly, you are saying that if you point the PRTG to an IP address configured on your Frame Relay subinterface, you get no response from the router. If you point the PRTG to an IP address configured on a physical interface, the SNMP works correctly. Is this correct?
What I would suggest as the first step is to verify whether there is a basic IP connectivity between your PC that runs PRTG, and the Frame Relay subinterfaces. Try simply pinging all the IP addresses on your router, both those on physical interfaces and those on subinterfaces. You should have a successful reply. If you do not see a reply, try using the traceroute to ascertain if the packets are following the correct path.
In general, there should be absolutely no problems in using any IP addresses on your router for monitoring purposes.
Please do the tests as suggested and let us know the results.
Best regards,
Peter
08-12-2011 10:51 AM
Thank you Peter.
If I understand you correctly, you are saying that if you point the PRTG to an IP address configured on your Frame Relay subinterface, you get no response from the router. If you point the PRTG to an IP address configured on a physical interface, the SNMP works correctly. Is this correct?
A: yes, no work get snmp only for virtual interface frame-relay.
my main doubt is: is it possible do gets snmp in virtual interface frame-relay ?
thanks
08-12-2011 01:48 PM
Hello Maicon,
If by "virtual interface frame-relay", you mean an subinterface of a serial interface configured for Frame Relay operation, then yes - any IP address on any router's interface can be used to contact the router.
What comes to my mind is whether all the subinterfaces and interfaces are in the up/up state. If an interface is not up/up, its IP address is not reachable despite being configured. Please use the show ip interface brief command to verify if all interfaces with IP address set are recognized as up/up. If they are something different, i.e. up/down, down/down, administratively down/down, then this problem must first be corrected, only then the IP address on that interface will become reachable.
Would it be possible to post your current configuration and the output of the show ip interface brief here? Also please perform the tests I asked you to do in my previous reply. Without all this additional information, it is very difficult to further find out the source of your problem.
Best regards,
Peter
08-16-2011 01:14 PM
Thank you Peter,
I don't know where is my problem....because my all my interfaces are up/up as bellow.
let's go remember.... I'm monitoring the router from PRTG application. The PRTG can gets SNMP for all Interfaces except subinterfaces frame-relay.
in the PRTG device settings there is a parameter about 32-bits and 64-bits traffic counters. I've already set the two paramenter but the error keep on yet.
the error shows by PRTG is: no such Name (SNMP error #2 )
Serial0/2/0 is up, line protocol is up
Hardware is GT96K Serial
Description: interface VETOR GVT
MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
reliability 255/255, txload 40/255, rxload 1/255
Encapsulation FRAME-RELAY IETF, loopback not set
Keepalive set (10 sec)
LMI enq sent 364676, LMI stat recvd 364676, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 0 LMI type is ANSI Annex D frame relay DTE
FR SVC disabled, LAPF state down
Broadcast queue 0/64, broadcasts sent/dropped 60796/0, interface broadcasts 17
Last input 00:00:01, output 00:00:00, output hang never
Last clearing of "show interface" counters 6w0d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 13218
Queueing strategy: weighted fair
Output queue: 0/1000/64/13218 (size/max total/threshold/drops)
Conversations 0/164/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1536 kilobits/sec
5 minute input rate 2000 bits/sec, 3 packets/sec
5 minute output rate 325000 bits/sec, 185 packets/sec
2818303 packets input, 335085753 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
36 input errors, 36 CRC, 16 frame, 6 overrun, 0 ignored, 26 abort
205962515 packets output, 572994472 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Subinterface:
Serial0/2/0.100 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.30.10.2/30
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 40/255, rxload 1/255
Encapsulation FRAME-RELAY IETF
Last clearing of "show interface" counters never
Serial0/3/0 is up, line protocol is up
Hardware is GT96K Serial
Description: VETOR Oi
Internet address is 10.0.3.18/30
MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
reliability 255/255, txload 9/255, rxload 90/255
Encapsulation PPP, LCP Open
Listen: CDPCP
Open: IPCP, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 6w0d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 36077
Queueing strategy: weighted fair
Output queue: 0/1000/64/36077 (size/max total/threshold/drops)
Conversations 0/173/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1536 kilobits/sec
5 minute input rate 726000 bits/sec, 235 packets/sec
5 minute output rate 75000 bits/sec, 38 packets/sec
314416449 packets input, 2530139239 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
103279907 packets output, 2077219771 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Thanks
08-16-2011 01:51 PM
Hello Maicon,
What does this command say when you issue it on your router?
show snmp mib ifindex detail serial0/2/0.100
Best regards,
Peter
08-18-2011 01:31 PM
Sorry, for my delay. follow...
PAC0101#show snmp mib ifmib ifindex serial 0/2/0.100
Interface = Serial0/2/0.100, Ifindex = 12
thanks
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide