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Unable to Ping a Server in VLAN Switching Data Centre Design

PND
Level 1
Level 1

Greetings !!!

Please help to be able to ping to Server - 5.5.5.5/8 in DR Switch.

Network Design Snapshot;

 

FHN.jpg

1 Accepted Solution

Accepted Solutions

Hello,

on the DR switch, enable IP routing"

DR(config)#ip routing

View solution in original post

16 Replies 16

Marvin Rhoads
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Hall of Fame

Moved thread from "Optical Networking" into the correct "LAN Switching and Routing" forum.

 

Regarding the question, do your core switches know about the route to 5.5.5.0/8 network?

No, there is no VLAN for 5.0.0.0/8 network in core/distribution or access switches. But default gateways are configured in core switches to 1.1.1.105 and 2.2.2.105. However, it is not working. Is there anything wrong in configuration.

I didn't ask if the VLAN was configured in the switches - I asked if they know the route. Also, setting a default gateway for a switch is not the same as setting a default route.

 

Please share the output of "show ip route" from one of the core switches.

Gateway of last resort is 1.1.1.105 to network 0.0.0.0

     1.0.0.0/8 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, Vlan10
     2.0.0.0/8 is subnetted, 1 subnets
C       2.2.2.0 is directly connected, Vlan20
S*   0.0.0.0/0 [1/0]  via 1.1.1.105
                      via 2.2.2.105

OK, so now that you see the route where we expect it, the logical thing to do is break the problem down into smaller pieces.

For example - can you ping the 5.5.5.5 host from the core switch?

If you cannot, then how about from the DR switch?

Hello,

on a side note, is this a packet tracer file ? If so, can you post the project (ZIP it first in order to upload it)...

I have uploaded PKT file as .jpg extension as CSF does not allow .pkt, .rar, .zip. Therfore, please rename the extension from .jpg to .pkt.

I have uploaded PKT file. Please help.

Hello,

the files you uploaded are empty. Save the original as .pkt and zip the file, then upload as zip.

Please download here
https://tinyurl.com/y876rket

Hello,

file arrived, I'll have a look...

Hello,

on the DR switch, enable IP routing"

DR(config)#ip routing

Jeez... this solved
It was this.. so embarrassing
Thanks mate...
Can I ask u, if it's better to use HSRP or StackWise in DSW switches to provide a single GW. Because from PC 4,5,7 I'm unable to ping the server but from PC6 it's working...

Hello,

what are the requirements of your network ? One way to accomplish single gateway connectivity is to simply set the gateways on the PCs to 1.1.1.105 and 2.2.2.105 respectively, and then turn off ip routing on everything except on the DR switch...