cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements

Cisco Community Designated VIP Class of 2020

411
Views
0
Helpful
2
Replies
Highlighted
Beginner

Cisco Newbie Question

This is a repost from a week ago.  Ive attached my network diagram and running configs of the switches and routers within my lab network.  My issue is when I start using the serial interfaces on my 2621xm router and 2620 router I cannot get out to the WAN from my 2950 switch.  If I use f0/0 on my 2621xm and plug it into my switch everything works fine but when I shut that interface down and start using my serial interfaces my switch stops talking to my WAN network?  Ive confirmed that I can get to both routers from my switch, I can even ping the interface that connects me to my WAN network on my my 2621xm router from my 2620 switch but I cannot get out past that?  I would like to get this issues resolved so I can get away from the router on a stick config and use both interfaces (s0/2 and f0/0) on my 2621xm with STP and learn hands on about failover networking with cisco switches and routers.  Any help would be greatly apprecialted!          

Everyone's tags (6)
2 REPLIES 2
Advisor

Cisco Newbie Question

Hi,

on 2621XM

1)

no ip nat pool nat-pool 192.168.9.10 192.168.9.19 netmask 255.255.255.0

no ip nat inside source list 6 pool nat-pool

no ip nat inside source list 7 pool nat-pool

ip nat inside source list 6 interface f0/1

2)

no ip route 192.168.1.0 255.255.255.0 192.168.11.0

int s0/2

ip address 192.168.11.1 255.255.255.252

ip route 192.168.1.0 255.255.255.0 192.168.11.2

on 2620

1)

int s0/1

ip address 192.168.11.2 255.255.255.252

2)

ip dhcp pool test-pool

   no default-router 192.168.9.1

   default-router 192.168.1.249

then ipconfig/release and ipconfig/renew on a host connected to the 2950

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
Beginner

Re: Cisco Newbie Question

Thanks for your help Alain, ive made the changes that your recommended but still not luck.  192.168.9.1 is my router that is directly connected to the internet, thats why I had that setup as a default route on my routers.  After applying these changes I cannnot ping www.google.com from my 2620 or my 2950.  I can however ping both interfaces on the 2621XM (f0/1 and s0/2) from my 2620 and my 2950.  When I do a traceroute from my 2950 my first hop is 192.168.1.249 then 192.168.11.1 then I lose it.  On my 2620 when I run a traceroute my first hop is 192.168.11.1 and then I lose it.  looks like its routing correctly but cant get back if I try going out? Ive attached screen shots of the changes you requested and a tracroute from the 2621xm going out to the internet.  I appreciate your help and again any help on this would be greatly appreciated!

CreatePlease to create content
Content for Community-Ad