Greetings all…
Issue: I am able to ping but unable to use internet base applications for both desktop and laptop.
I am studying for my CCNA and finally got around to setting up a home lab (router on a stick topology) as follows:
DESKTOP & LAPTOP connected to 1 of 2 Cisco 2950 access SW which are connected to a Cisco 2950 distro SW which is connected to a Cisco 2621 core router which is connected to ISP MDM.
Ethernet LAN – all Cat5e cables are tested and are no more then a few feet in length. Devices are using the correct cables (straight through vs crossover). Speed & duplex are hard coded on all devices including PCs.
• From my desktop & laptop I am able to ping & tracert to google.com.
• 2621 RTR is up/up, passing bidirectional traffic with no errors. Learning MAC’s. NAT is translating.
• From 2621 RTR, I am able to ping google sourcing gateway.
• From 2621 RTR, I am able to ping both hosts (desktop/laptop) sourcing gateway.
• 2950 Access SW is up/up, passing bidirectional traffic with no errors. Learning MAC’s.
• From Desktop using Firefox & IE, unable to access google/yahoo via domain name but able to reach them via IP.
I believe to have a DNS issue per my trouble shooting research provided. However I am unable to resolve this issue due to lack of experience. Could someone be so kind as to help me resolve.
Issue: I am able to ping but unable to use internet base applications for both desktop and laptop.
I am studying for my CCNA and finally got around to setting up a home lab (router on a stick topology) as follows:
DESKTOP & LAPTOP connected to 1 of 2 Cisco 2950 access SW which are connected to a Cisco 2950 distro SW which is connected to a Cisco 2621 core router which is connected to ISP MDM.
Ethernet LAN – all Cat5e cables are tested and are no more then a few feet in length. Devices are using the correct cables (straight through vs crossover). Speed & duplex are hard coded on all devices including PCs.
• From my desktop & laptop I am able to ping & tracert to google.com.
• 2621 RTR is up/up, passing bidirectional traffic with no errors. Learning MAC’s. NAT is translating.
• From 2621 RTR, I am able to ping google sourcing gateway.
• From 2621 RTR, I am able to ping both hosts (desktop/laptop) sourcing gateway.
• 2950 Access SW is up/up, passing bidirectional traffic with no errors. Learning MAC’s.
• From Desktop using Firefox & IE, unable to access google/yahoo via domain name but able to reach them via IP.
I believe to have a DNS issue per my trouble shooting research provided. However I am unable to resolve this issue due to lack of experience. Could someone be so kind as to help me resolve.