HELP HELP HELP !!!

[Waqarahm3d]

I have configured a NAT in my lab environment Static route and all configured can ping 4.2.2.2 from router after NAT can ping same DNS from local host as well. Did trace route worked perfect. NOW THE big issue is i can't access internet :S. i can't browse at all. please guys help me out.

And funny thing i have discoverd is my Skype is connecting but no one services seems to be working at all.

Tried flushing DNS as well

[ALIAOF_ · Accepted solution]

Did you remove the following command yet, "ip route 0.0.0.0 0.0.0.0 FastEthernet0/0"

[Waqarahm3d]

Mohammad, my WAN connection is connected to University network and univeristy is not giving us any static ip so i though i use static route to forward everthing to the interface and interface is taking addresses from University DHCP server.

[ALIAOF_ · Accepted solution]

If your WAN interface is setup via DHCP then you do not need that command in there.  You use that command when there is a static IP configured on your WAN interface and even in that case your default route would not point to the WAN interface itself instead it will point to the next router.

[Waqarahm3d]

Took it off and tried but sill no joy .

[ALIAOF_ · Accepted solution]

Ok try setting up that DHCP setup on the router instead of the L3 switch.  Also you don't need that L3 switch in L3 mode so do you have the "ip default-gateway 172.168.10.1" on it?

[Waqarahm3d]

Mohammad we only have Catalyst 3560 in our Lab i have 2960 at home i will bring that to uni and will check it on that one, i do have configured default gate on switch as well, just to confirm if anything is wrong with switch i connected router port directly to my laptop but it's the same, i can ping traceroute but can't browse at all. i am going to see if dcp from router is going to give any help..

[ALIAOF_ · Accepted solution]

No 3560 is fine you don't have to connect 2960.  Are you able to post the full config's minus the passwords from the router and the switch?

[Waqarahm3d]

Got it . i found out why it was not working . for some reson my be firewall is blocking or university network is not allowing all open dns server configuration on routers.  (may be this is not a good way to explain it). however i tired all university DNS server and guess what, it Worked !!!

[Waqarahm3d]

I think i am not going to use router or switch as DCP server, i will use server 2008 r2 at least it's going to allow me to use multiple dns server if one fails.

Thank you Guys, thank you everyone for trying to put your self into my shoe and helping me out with this. I am not going to live my life in this forum .

Good day every one .. And Mohammad brother Eid Mubarak !! .

[ALIAOF_]

Glad it worked out and thank you same to you .