Unable To Ping*

seems linke your interfaces on HQ are not in the same subnet as all the other routers:

HQ:

Serial0/0 80.0.0.1 YES manual up up

Serial0/1 80.0.1.1 YES manual up up

Serial1/0 80.0.2.1 YES manual up up

Serial1/1 80.0.3.1 YES manual up up

R4:

Serial0/0 80.80.80.10 YES manual up up

Serial0/1 80.80.80.13 YES manual up up

Serial1/0 80.80.80.18 YES manual up up

martell1000 wrote: »

seems linke your interfaces on HQ are not in the same subnet as all the other routers:

Hmm i dont quite get what u actually meant.. so i should change to which one?

CodeBlox

I'm at work right now so I can't open your pkt file as I don't have packet tracer here but... Depending on your subnet masks and based on the post from martell1000, your R4 HQ interfaces may not be in the same subnet. Really looks like the subnetting may not be right.

you set up /30 links within the range of 80.80.80.0 network on every router expect of the HQ router ...

so for example interface s1/0 has an IP of 80.80.80.18 the other side of the link has an IP of 80.0.0.1 which is miles out of range.
put them in the same subnet and it will work.

on router HQ:

Router(config)#interface serial 0/1
Router(config-if)#ip address 80.80.80.17 255.255.255.252
Router(config-if)#no shut
Router(config-if)#do ping 80.80.80.18

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 80.80.80.18, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/14/57 ms

and you should enable a routing protocol on the routers or check your static routes if you want to have a fully coverged network...

Looked at your configs on HQ, B1, B2, B3, B4 -

HQ
S0/0 = 80.0.0.1/30 this connects to B3 - S1/0 = 80.80.80.2/30 INCORRECT SUBNET
S0/1 = 80.0.1.1/30 this connects to B4 - S1/0 = 80.80.80.18/30 INCORRECT SUBNET
S1/0 = 80.0.2.1/30 this connects to B1 - S1/0 = 80.80.80.17/30 INCORRECT SUBNET
S1/1 = 80.0.3.1/30 this connects to B2 - S1/0 = 80.80.80.10/30 INCORRECT SUBNET

B1
S0/0 = 80.80.80.1/30 this connects to B2 - S0/0 = 80.80.80.2/30 CORRECT!
S0/1 = 80.80.80.14/30 this connects to B4 - S0/1 = 80.80.80.13/30 CORRECT!
S1/0 = 80.80.80.17/30 this connects to HQ - S1/0 = 80.0.2.1/30 INCORRECT SUBNET

B2
S0/0 = 80.80.80.2/30 this connects to B1 - S0/0 = 80.80.80.1/30 CORRECT!
S0/1 = 80.80.80.5/30 this connects to B3 - S0/1 = 80.80.80.6/30 CORRECT!
S1/0 = 80.80.80.10/30 this connects to HQ - S1/1 = 80.0.3.1/30 INCORRECT SUBNET

B3
S0/0 = 80.80.80.9/30 this connects to B4 - S0/0 = 80.80.80.10/30 CORRECT!
S0/1 = 80.80.80.6/30 this connects to B2 - S0/1 = 80.80.80.5/30 CORRECT!
S1/0 = 80.80.80.2/30 this connects to HQ - S0/0 = 80.0.0.1/30 INCORRECT SUBNET

B4
S0/0 = 80.80.80.10/30 this connects to B3 - S0/0 = 80.80.80.9/30 CORRECT!
S0/1 = 80.80.80.13/30 this connects to B1 - S0/1 = 80.80.80.14/30 CORRECT!
S1/0 = 80.80.80.18/30 this connects to HQ - S0/1 = 80.0.1.1/30 INCORRECT SUBNET

Suggestion:
B1 - Change S1/0 to 80.0.2.2/30
B2 - Change S1/0 to 80.0.3.2/30
B3 - Change S1/0 to 80.0.0.2/30
B4 - Change S1/0 to 80.0.1.2/30

Forsaken_GA

Ltat42a wrote: »

B1
S0/0 = 80.0.0.1/30 this connects to B2 - S0/0 = 80.80.80.2/30 CORRECT!
B2
S0/0 = 80.80.80.2/30 this connects to B1 - S0/0 = 80.0.0.1/30 CORRECT!

You may want to look at these again.

Darn it LT.....Thanx, got-r-fixed:

B1
S0/0 = 80.80.80.1/30 this connects to B2 - S0/0 = 80.80.80.2/30 CORRECT!

B2
S0/0 = 80.80.80.2/30 this connects to B1 - S0/0 = 80.80.80.1/30 CORRECT!

MAC_Addy

Ltat42a wrote: »

Darn it LT.....Thanx, got-r-fixed:

B1
S0/0 = 80.80.80.1/30 this connects to B2 - S0/0 = 80.80.80.2/30 CORRECT!

B2
S0/0 = 80.80.80.2/30 this connects to B1 - S0/0 = 80.80.80.1/30 CORRECT!

You're fired. :P just kidding.

That should have him all fixed up now.

MAC_Addy wrote: »

You're fired. :P just kidding.

That should have him all fixed up now.

Hmm alright i'll try that later on. Thank you guys for all your lovely help. thanks appreciated.

martell1000 wrote: »

you set up /30 links within the range of 80.80.80.0 network on every router expect of the HQ router ...

so for example interface s1/0 has an IP of 80.80.80.18 the other side of the link has an IP of 80.0.0.1 which is miles out of range.
put them in the same subnet and it will work.

on router HQ:

Hey friend, i've already did what you told me to do. I've change all the ip addresses in HQ and now everything can connect to each other. but now i've left with the R4.. R4 just couldn't ping to HQ any idea why ?

R4 - 80.80.80.18/30
HQ - 80.80.80.21/30 (Note: i use 80.80.80.21 here is because i couldn't change it to 80.80.80.17 it'll overlap. )

mindzfreak wrote: »

Hey friend, i've already did what you told me to do. I've change all the ip addresses in HQ and now everything can connect to each other. but now i've left with the R4.. R4 just couldn't ping to HQ any idea why ?

R4 - 80.80.80.18/30
HQ - 80.80.80.21/30 (Note: i use 80.80.80.21 here is because i couldn't change it to 80.80.80.17 it'll overlap. )

it is because .18 and .21 are not in the same subnet. the .18 /30 subnet is: .16 .17 .18 .19

try to give them addresses which are in the same /30 subnet or create an /24 subnet just for testing (80.80.88.0 /24)

martell1000 wrote: »

it is because .18 and .21 are not in the same subnet. the .18 /30 subnet is: .16 .17 .18 .19

try to give them addresses which are in the same /30 subnet or create an /24 subnet just for testing (80.80.88.0 /24)

Alright now all routers can ping. but another problem pop up, i cant ping from pc to pc.. any idea why ? it says host unreachable..

Double check your static route statements, or configure a routing protocol on all routers.

Ltat42a wrote: »

Double check your static route statements, or configure a routing protocol on all routers.

Yup checked. all have static routing in it ( Exit interface ). But it still doesn't allow me to ping from pc to pc

any bright idea?

here's the latest : Mock Test Latest.pkt

I noticed on the HQ router, all static routes are going out 1 interface - serial1/0, I changed them to:
ip route 10.10.10.0 255.255.255.0 Serial1/0
ip route 40.40.40.0 255.255.255.0 Serial0/1
ip route 20.20.20.0 255.255.255.0 Serial1/1
ip route 30.30.30.0 255.255.255.0 Serial0/0

Pings from the PC's to the HQ router are now successful

..working on the others...stay tuned.

Ltat42a wrote: »

I noticed on the HQ router, all static routes are going out 1 interface - serial1/0, I changed them to:
ip route 10.10.10.0 255.255.255.0 Serial1/0
ip route 40.40.40.0 255.255.255.0 Serial0/1
ip route 20.20.20.0 255.255.255.0 Serial1/1
ip route 30.30.30.0 255.255.255.0 Serial0/0

Pings from the PC's to the HQ router are now successful

..working on the others...stay tuned.

Alright thanks dude