cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
2033
Views
5
Helpful
3
Replies

Cannot ping its own interface help [Basic]

KemalRzky_
Level 1
Level 1

ping
Protocol [ip]:
Target IP address: 192.168.254.109
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Ingress ping [n]:
Source address or interface: GigabitEthernet0/0
DSCP Value [0]:
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0x0000ABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.109, timeout is 2 seconds:
Packet sent with a source address of 192.168.254.109
.....
Success rate is 0 percent (0/5)

 

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

 

But it can show neighbor :

 

Cisco-3650-109_Sr#sh cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
D - Remote, C - CVTA, M - Two-port Mac Relay

Device ID Local Intrfce Holdtme Capability Platform Port ID
MikroTik-CRS-202_Sr
Gig 0/0 96 R MikroTik sfp-sfpplus2
MikroTik-CRS-202_Sr
Gig 1/0/23 96 R MikroTik Bridge-iSCSI/ether24-to-201
MikroTik-CRS-201_Sr
Gig 0/0 109 R MikroTik Bridge-Port-LAN/Bonding to CO
RT CORE GEMAPRO Gig 0/0 80 R MikroTik Bridge-Port-LAN/ether10

Total cdp entries displayed : 4

 

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

 

sho int GigabitEthernet0/0
GigabitEthernet0/0 is up, line protocol is up
Hardware is RP management port, address is 00b7.7129.0680 (bia 00b7.7129.0680)
Internet address is 192.168.254.109/24
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 128/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 1000Mbps, link type is auto, media type is RJ45
output flow-control is unsupported, input flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:16, output 00:00:15, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/3883676/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 45000 bits/sec, 49 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
4341103 packets input, 640195068 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
3883676 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
86879 packets output, 7741766 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
2 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

3 Replies 3

Giuseppe Larosa
Hall of Fame
Hall of Fame

Hello @KemalRzky_ ,

post

show run int gi0/0

 

show ip vrf

 

a possible explanation is that the interface is member of a VRF and so it cannot pinged normally you should ping vrf <vrf-name> 192.168.254.109.

Some devices have a built in VRF named management and this can be your case as gi0/0 can be the management interface.

 

usually on switches the first user data port is something like gi0/1

 

Hope to help

Giuseppe

 

Hi sir,

 

Thankyou for your answer..

 

I have checked the system and it shows:

 

#show run int gi0/0
Building configuration...

Current configuration : 175 bytes
!
interface GigabitEthernet0/0
vrf forwarding Mgmt-vrf
ip address 192.168.254.109 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
negotiation auto
end

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

#sh ip vrf
Name Default RD Interfaces
Mgmt-vrf <not set> Gi0/0

 

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

 

What should i do next, if i still want to use Mgmnt Ethernet?

I'm sorry for this basic question '')

Hello @KemalRzky_ ,

move the configuration to another interface on the switch without the line

vrf forwarding Mgmt-vrf.

and adding the line

no switchport

! to be able to give an IP address to it

Gi0/0 is dedicated to management purposes and have some limitations give it a different IP address in a different IP subnet and do not use it for the moment.

 

Hope to help

Giuseppe

 

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Review Cisco Networking products for a $25 gift card