Traffic Issue inside newly created VLAN


I'm new to VLAN's and i'm having some issues. I've configured a test VLAN, but am unable to sucessfully ping the other client i've got sitting on this VLAN. I can ping the Primary IP for the VLAN from either of my clients however. Thanks

33 replies

Userlevel 6
Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?
Userlevel 4
have you set the tag for a test vlan? Are both ports (yours and clients one) untagged and your pc and other's one have ip-s from one subnet?
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

My PC 10.193.150.50/24
Other PC 10.193.150.51/24

Both directly connected, yes.
Nick Yakimenko wrote:

have you set the tag for a test vlan? Are both ports (yours and clients one) untagged and your pc and other's one have ip-s from one subnet?

I have set the Tag for the VLAN to 5 and added the correct ports needed. Both machines are on the proper subnet created for the VLAN
Userlevel 4
Nick Yakimenko wrote:

have you set the tag for a test vlan? Are both ports (yours and clients one) untagged and your pc and other's one have ip-s from one subnet?

issue commands
show vlan port n
where n - ports of the machines
Userlevel 4
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

maybe you are unable to ping each other because of a firewall? Issue command
arp -a 10.193.150.51
on your pc and show the output
Nick Yakimenko wrote:

have you set the tag for a test vlan? Are both ports (yours and clients one) untagged and your pc and other's one have ip-s from one subnet?

I can see both ports as active
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

Interface: 169.254.74.124 --- 0xa Internet Address Physical Address Type
10.193.150.51 f4-4d-30-69-f0-d1 dynamic
Userlevel 4
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

looks like you have more than one active physical interface on your pc and your subnet 10.193.150.0/24 is used by more than one interface
show output of
route print 10*
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

C:\WINDOWS\system32>route print 10*===========================================================================
Interface List
13...f8 a9 63 88 8e 2d ......Intel(R) Ethernet Connection I217-LM
10...3c 18 a0 01 d5 e4 ......Thinkpad USB 3.0 Ethernet Adapter
2...c4 d9 87 c5 98 33 ......Intel(R) Centrino(R) Advanced-N 6235
12...c4 d9 87 c5 98 34 ......Microsoft Wi-Fi Direct Virtual Adapter
21...c6 d9 87 c5 98 33 ......Microsoft Hosted Network Virtual Adapter
18...c4 d9 87 c5 98 37 ......Bluetooth Device (Personal Area Network)
1...........................Software Loopback Interface 1
8...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
17...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
10.193.113.0 255.255.255.0 On-link 10.193.113.65 281
10.193.113.65 255.255.255.255 On-link 10.193.113.65 281
10.193.113.255 255.255.255.255 On-link 10.193.113.65 281
===========================================================================
Persistent Routes:
None

IPv6 Route Table
===========================================================================
Active Routes:
None
Persistent Routes:
None

The "Thinkpad USB 3.0" is connected to the switch port included in my test VLAN
Userlevel 6
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

To Nick's point I would make sure that all other interfaces on the laptop are turned off and then try the ping.
Userlevel 4
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

I cannot see your thinkpad usb 3.0 adapter as properly installed one
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

I have the dumb today. I am able to ping the Primary IP from my PC's, yet still unable to ping from PC to PC
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

What are you meaning about the thinkpad adapter not being properly installed?
Userlevel 4
Patrick Voss wrote:

Hello Mitch,

What are the IP's you are trying to Ping. Are they in the same subnet? Are they both directly connected to the switch?

You are pinging Primary ip via default route on your 10.193.110.65 interface
I mean you did not configure static ip 10.193.150.50
I set the tag to 5 and both ports are untagged within the VLAN and on the same subnet
Userlevel 6
I believe you have a simple diagram as follows:

PC1 (10.193.150.50/24) -------- Switch ------- (10.193.150.50/24) PC2

Can you ping from the switch to both PC1 and PC2? Could be a PC firewall?
Henrique wrote:

I believe you have a simple diagram as follows:

PC1 (10.193.150.50/24) -------- Switch ------- (10.193.150.50/24) PC2

Can you ping from the switch to both PC1 and PC2? Could be a PC firewall?

I am able to ping the Primary IP of the switch, just not from PC to PC. Also Windows Firewall is disabled per GPO
Userlevel 7
Let's start from scratch...
1) connect the PCs back to back with a patchcable - does the ping work
2) what kind of switch model is it
3) post the output for "show vlan X"
Ron wrote:

Let's start from scratch...
1) connect the PCs back to back with a patchcable - does the ping work
2) what kind of switch model is it
3) post the output for "show vlan X"

* X440-48p-10G.11 # show vlan-------------------------------------------------------------------------------- ---------------
Name VID Protocol Addr Flags Proto Po rts Virtual
Ac tive router
/T otal
-------------------------------------------------------------------------------- ---------------
Default 1 10.193.113.244 /24 -f----------T---------------- ANY 2 /46 VR-Default
Mgmt 4095 10.193.113.251 /24 ----------------------------- ANY 0 /1 VR-Mgmt
Test 5 10.193.150.1 /24 -f--------------------------- ANY 2 /4 VR-Default
-------------------------------------------------------------------------------- ---------------
Flags : (B) BFD Enabled, (c) 802.1ad customer VLAN, (C) EAPS Control VLAN,
(d) Dynamically created VLAN, (D) VLAN Admin Disabled,
(e) CES Configured, (E) ESRP Enabled, (f) IP Forwarding Enabled,
(F) Learning Disabled, (h) TRILL Enabled, (i) ISIS Enabled,
(I) Inter-Switch Connection VLAN for MLAG, (k) PTP Configured,
(l) MPLS Enabled, (L) Loopback Enabled, (m) IPmc Forwarding Enabled,
(M) Translation Member VLAN or Subscriber VLAN, (n) IP Multinetting Enab led,
(N) Network Login VLAN, (o) OSPF Enabled, (O) Flooding Disabled,
(p) PIM Enabled, (P) EAPS protected VLAN, (r) RIP Enabled,
(R) Sub-VLAN IP Range Configured, (s) Sub-VLAN, (S) Super-VLAN,
(t) Translation VLAN or Network VLAN, (T) Member of STP Domain,
(v) VRRP Enabled, (V) VPLS Enabled, (W) VPWS Enabled, (Z) OpenFlow Enabl ed

Total number of VLAN(s) : 3
Ron wrote:

Let's start from scratch...
1) connect the PCs back to back with a patchcable - does the ping work
2) what kind of switch model is it
3) post the output for "show vlan X"

X440-48p-10G
Ron wrote:

Let's start from scratch...
1) connect the PCs back to back with a patchcable - does the ping work
2) what kind of switch model is it
3) post the output for "show vlan X"

Yes Pings work on the default VLAN
Userlevel 6
I would create an ACL to count ICMP Replies and apply to both PC ports. That would help to confirm if both PC are replying the ICMP Requests.
Userlevel 4
Henrique wrote:

I would create an ACL to count ICMP Replies and apply to both PC ports. That would help to confirm if both PC are replying the ICMP Requests.

he hasnt properly configured an ip interface on his pc
https://community.extremenetworks.com/extreme/topics/traffic-issue-inside-newly-created-vlan?topic-r...
Interface: 169.254.74.124 --- 0xa Internet Address Physical Address Type
10.193.150.51 f4-4d-30-69-f0-d1 dynamic

Reply