Ethernet Switching
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Ethernet Switching

Cant ping devices in same VLAN

‎04-15-2019 09:06 AM

Not sure if I am missing something, but I am unable to ping device in the same subnet/VLAN except for the gateway which is an ASA. Any config on the EX that is cause this behaviour?

 

EMOH-EXPR1M3> show configuration interfaces vlan.88 | display set
set interfaces vlan unit 88 family inet address 192.168.255.131/26

 

MOH-EXPR1M3> show vlans brief
Ports
Name Tag Primary Address Active/Total
LAB 88 192.168.255.131/26 4/5

 

merit316@EMOH-EXPR1M3> show arp no-resolve
MAC Address Address Interface Flags
78:72:5d:00:d8:6f 192.168.255.129 vlan.88 none
b0:7f:b9:47:d2:fb 192.168.255.148 vlan.88 none
00:50:56:63:1f:70 192.168.255.149 vlan.88 none

 

--- 192.168.255.129 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 2.429/2.983/3.612/0.442 ms

{master:0}
merit316@EMOH-EXPR1M3> ping 192.168.255.148
PING 192.168.255.148 (192.168.255.148): 56 data bytes
^C
--- 192.168.255.148 ping statistics ---
3 packets transmitted, 0 packets received, 100% packet loss

{master:0}
merit316@EMOH-EXPR1M3> ping 192.168.255.149
PING 192.168.255.149 (192.168.255.149): 56 data bytes
^C
--- 192.168.255.149 ping statistics ---
2 packets transmitted, 0 packets received, 100% packet loss

 

 

0.0.0.0/0 *[Static/5] 4d 01:47:25
> to 192.168.255.129 via vlan.88
3.16.220.0/32 *[Direct/0] 4d 01:47:56
> via lo0.0
9.175.50.6/31 *[OSPF/10] 4d 01:46:15, metric 11
> to 192.168.255.129 via vlan.88
192.168.0.252/30 *[OSPF/10] 1d 05:19:16, metric 11
> to 192.168.255.129 via vlan.88
192.168.255.128/26 *[Direct/0] 4d 01:47:25
> via vlan.88
192.168.255.131/32 *[Local/0] 4d 01:47:34
Local via vlan.88
224.0.0.5/32 *[OSPF/10] 4d 01:48:00, metric 1
MultiRecv

1 REPLY 1
Ethernet Switching

Re: Cant ping devices in same VLAN

‎04-15-2019 05:01 PM

Hi Manu_Lopez,

 

Please test by including source ("ping <> source <>") or  by pinging between two hosts in the VLAN.  The test shown in the post is pinging from the switch to the host that might use either loopback or exit interface IP as the source.

 

merit316@EMOH-EXPR1M3> ping 192.168.255.149
PING 192.168.255.149 (192.168.255.149): 56 data bytes
^C
--- 192.168.255.149 ping statistics ---
2 packets transmitted, 0 packets received, 100% packet loss

 

Ref: https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/default-a...

 

Hope this helps.

 

Regards,
-r.

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