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Why does PING fail on own IP in EWC??

 

 

WLC#sh ip int b
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0 10.0.15.210 YES manual up up
WLC#ping 10.0.15.210
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.15.210, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
WLC#

 

WLC#sh ver
Cisco IOS XE Software, Version 16.12.07

 

Why does PING fail on own IP in EWC??

 

 

2 Accepted Solutions

Accepted Solutions

@JPavonM it's a EWC, not a 9800 appliance. So all the configuration on EWC in 9100 series AP uses Gig0 as WMI.

 

@JustTakeTheFirstStep Can you check whether the IP is duplicated anywhere in the network? Login to AP shell and check whether the AP has an IP as well. (wireless ewc-ap ap shell username admin) What does the upstream switch say about this port? Is it up up? How the switchport is configured?

View solution in original post

Now the PING is successful.

A few more tests are still needed,
When I posted the question, perhaps the IP bands of CAPWAP AP and EWC did not match.

EWC is 192.168.1.1
AP is 192.18.1.2

Now everything works fine.

View solution in original post

14 Replies 14

Hi

 Can you run "show run GigabitEthernet0 " ?

 

Make sure  this interface is not under some VRF. Looks to me like a management interface which some device put under mgmt-vrf.

interface GigabitEthernet0
mac-address 0000.5e00.0101
ip dhcp client client-id GigabitEthernet0
ip dhcp client broadcast-flag clear
ip address 10.0.15.210 255.255.255.0
no negotiation auto

Non sense bahavior.

From out side it pings? 

Self-ping does not work, ping with switch fails

JPavonM
VIP
VIP

As @Flavio Miranda said, this is the usual Giga0 interface configuration in C9800 and it use to be on a different VRF.

Why do you wan to configuire such interface and not the physical ones, or a loopback interface?

 

c9800#sh run int g0
Building configuration...

Current configuration : 103 bytes
!
interface GigabitEthernet0
vrf forwarding Mgmt-intf
no ip address
shutdown
negotiation auto
end

 

I am configuring 9130AP as EWC.

 

my AP's g0 interface doesn't have vrf settings

 

I want the AP and the switch to communicate, but the AP also fails to self-ping

 

what can i try??

@JPavonM it's a EWC, not a 9800 appliance. So all the configuration on EWC in 9100 series AP uses Gig0 as WMI.

 

@JustTakeTheFirstStep Can you check whether the IP is duplicated anywhere in the network? Login to AP shell and check whether the AP has an IP as well. (wireless ewc-ap ap shell username admin) What does the upstream switch say about this port? Is it up up? How the switchport is configured?

 

WLC#sh ip int
*May 4 10:06:20.158: %SYS-5-CONFIG_I: Configured from console by consoleb
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0 192.168.1.10 YES manual up up
WLC#ping 192.168.1.10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.10, timeout is 2 seconds:
...

WLC#wireless ewc-ap ap shell username Cisco
Cisco@192.168.129.1's password:
AP6C71.0DF2.5B94>en
Password:
AP6C71.0DF2.5B94#sh capwap ip config
IP Address : 192.168.1.2
IP netmask : 255.255.255.0
Default Gateway : 192.168.1.1
AP6C71.0DF2.5B94#

Switch#sh cdp nei d
-------------------------
Device ID: AP6C71.0DF2.5B94
Entry address(es):
IP address: 192.168.1.2

Switch#sh run int g1/0/1
Building configuration...

Current configuration : 38 bytes
!
interface GigabitEthernet1/0/1
end

Switch#sh ip int b
Interface IP-Address OK? Method Status Protocol
Vlan1 192.168.1.1 YES manual up up

 

Can you configure the switchport as trunk, and then post "show interface GigabitEthernet1/0/1"

Can you also check whether the Gateway is reachable?



Using VLAN1 is not recommended for security purposes (no technical limitations though), so I would suggest you create another dedicated VLAN for AP management, if you happen to create a separate VLAN then your switchport must be configured as below



Int gi 0/0/1

Switchp mode trunk

Switchp trunk nativ vlan

Now the PING is successful.

A few more tests are still needed,
When I posted the question, perhaps the IP bands of CAPWAP AP and EWC did not match.

EWC is 192.168.1.1
AP is 192.18.1.2

Now everything works fine.

 

How it's solved , I have the same problem

 

@mohammed.alsum 

I'm pretty sure there are issues with the model and version.
This thread is written with the 9130 model.
In the 9130 model, version 17.08.01 is not a problem.

However, in the 9115 model, including 17.08.01, the 16.12.07 , 17.03.04c , and 17.09.01 versions all failed to self-ping.
It was definitely not a config issue.
I didn't have client provisioning.
After changing the version several times, the 17.03.05B version was normal.

Hello @JustTakeTheFirstStep I'm having the same problem, do you recall how you fixed it? I've tried everything and it seem to not be working no matter what i do

balaji.bandi
Hall of Fame
Hall of Fame

can you post show run from the prompt :

 

I have tested last week - followed the  below video - suggest to reset and do the day 0 config, it work as expected :

 

https://www.youtube.com/watch?v=oS68E25wc4A

BB

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