Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

Connection Issue on the Server

Hi all,

I have a problem with a connection to the server, under normal conditions ping from the PC monitor to the server normally. but sometimes there is a failure that resulted in the PC unable to connect to the server.

If I do change the IP address on the PC monitor, Ping goes back to normal or I do service network restart on the server problem is gone. please help me, im stuck at this moment

see the attachment for topology:

topology1.jpg

Regards,

Habibi

Regards, Habibi
4 REPLIES
Hall of Fame Super Blue

Re: Connection Issue on the Server

Habibi

but sometimes there is a failure that resulted in the PC unable to connect to the server.

Can you provide more details in terms of what the failure actually is ?

In addition, are the switches (sw3/sw4) L3 switches ie. what device is the 192.168.10.254 configured on ?

Jon

New Member

Connection Issue on the Server

Hi Jon

Initially the pc monitor can ping the server, and vice versa. in some time these devices can not be connected.

sw3 & sw4 is L2 switches, 192.168.10.254 is FW ASA as a Gateway.

thx for your response

Regards,

Habibi

Regards, Habibi

Connection Issue on the Server

Hello,

Expecting that all of the devices have the right subnet-mask then traffic should not reach the Firewall. Traffic should stay on the L2 domain.

That being said:

  1. Do the PC and Server have the IP address configured statically or is via DHCP?

Next time the issue happens Check

  • Try to ping the Firewall from the PC and Server
  • Check the ARP table of the PC/Server
  • Interface status of the switches

sh interfaces fastEthernet x/x switchport

  • Any Err-disabled problem

sh interfaces fastEthernet x/x status err-disabled

  • The MAC address table of the switches

show mac address-table interface fastEthernet x/x (Make sure you see the MAC address of the PC/Server on the right ports)

Hope this helps,

Looking for some Networking Assistance? 
Contact me directly at jcarvaja@laguiadelnetworking.com

I will fix your problem ASAP.

Cheers,

Julio Carvajal Segura
http://laguiadelnetworking.com

Julio Carvajal
Senior Network Security and Core Specialist
CCIE #42930, 2xCCNP, JNCIP-SEC
New Member

Re: Connection Issue on the Server

Hi jcarvaja

ip address configured static

- PC & server able to ping the Firewall

- no problem with the mac address, errdisable, arp table
I assume the problem is on the server, but I am not so sure how to explain this problem

Regards,

Habibi

Regards, Habibi
196
Views
0
Helpful
4
Replies
CreatePlease to create content