EIGRP configuration

kane69

Hi there, I m having problem configure the following lab, could someone help me out, please? my problem is I cannot ping PC1, PC2, PC3 each other. Is my subnetting wrong or something else? Thanks so much for ur time.



Here is the configuration.

172.16.0.0/16 network to be subnetted for :
HQ LAN 500 hosts
BRANCH1 200 hosts
BRANCH2 100 hosts
192.168.1.16/28 address space must be subnetted to obtain the addresses for the links between the three routers.

Here are all the subnettings.
HQ LAN 172.16.0.0/30
BRANCH1 LAN 172.16.2.0/24
BRANCH2 LAN 172.16.3.0/25

3 serial links
Between HQ and BRANCH1 192.168.1.16/30
Between HQ and BRANCH2 192.168.1.20/30
Between BRANCH1 and BRANCH2 192.168.1.24/30

BRANCH1
en
conf t
hostname BRANCH1
int f 0/0
ip add 172.16.2.1 255.255.255.0
no shutdown
exit
int s 0/0
ip add 192.168.1.18 255.255.255.252
clock rate 64000
no shutdown
exit
int s 0/1
ip add 192.168.1.25 255.255.255.252
no shutdown
exit
router eigrp 1
network 172.16.0.0
network 192.168.1.16 0.0.0.3
network 192.168.1.24 0.0.0.3
end

HQ
en
conf t
hostname HQ
int f 0/0
ip add 172.16.0.1 255.255.254.0
no shutdown
exit
int s 0/0
ip add 192.168.1.17 255.255.255.252
no shutdown
exit
int s 0/1
ip add 192.168.1.21 255.255.255.252
clock rate 64000
no shutdown
exit
int loopback 1
ip add 209.165.200.225 255.255.255.252
exit
ip route 0.0.0.0 0.0.0.0 loopback 1
router eigrp 1
network 172.16.0.0
network 192.168.1.16 0.0.0.3
network 192.168.1.20 0.0.0.3
network 209.165.200.224 0.0.0.3
redistribute static
end

BRANCH2
en
conf t
hostname BRANCH2
int f 0/0
ip add 172.16.3.1 255.255.255.128
no shutdown
exit
int s 0/0
ip add 192.168.1.26 255.255.255.252
clock rate 64000
no shutdown
exit
int s 0/1
ip add 192.168.1.22 255.255.255.252
no shutdown
exit
router eigrp 1
network 172.16.0.0
network 192.168.1.20 0.0.0.3
network 192.168.1.24 0.0.0.3
end

georgemc

kane69 wrote:

Hi there, I m having problem configure the following lab, could someone help me out, please? my problem is I cannot ping PC1, PC2, PC3 each other. Is my subnetting wrong or something else? Thanks so much for ur time.



Here is the configuration.

172.16.0.0/16 network to be subnetted for :
HQ LAN 500 hosts
BRANCH1 200 hosts
BRANCH2 100 hosts
192.168.1.16/28 address space must be subnetted to obtain the addresses for the links between the three routers.

Here are all the subnettings.
HQ LAN 172.16.0.0/30 <---this should probably be a 23 bit subnet mask to handle 500 hosts.
BRANCH1 LAN 172.16.2.0/24
BRANCH2 LAN 172.16.3.0/25

3 serial links
Between HQ and BRANCH1 192.168.1.16/30
Between HQ and BRANCH2 192.168.1.20/30
Between BRANCH1 and BRANCH2 192.168.1.24/30

BRANCH1
en
conf t
hostname BRANCH1
int f 0/0
ip add 172.16.2.1 255.255.255.0
no shutdown
exit
int s 0/0
ip add 192.168.1.18 255.255.255.252
clock rate 64000
no shutdown
exit
int s 0/1
ip add 192.168.1.25 255.255.255.252
no shutdown
exit
router eigrp 1
network 172.16.0.0
network 192.168.1.16 0.0.0.3
network 192.168.1.24 0.0.0.3
end

HQ
en
conf t
hostname HQ
int f 0/0
ip add 172.16.0.1 255.255.254.0
no shutdown
exit
int s 0/0
ip add 192.168.1.17 255.255.255.252
no shutdown
exit
int s 0/1
ip add 192.168.1.21 255.255.255.252
clock rate 64000
no shutdown
exit
int loopback 1
ip add 209.165.200.225 255.255.255.252
exit
ip route 0.0.0.0 0.0.0.0 loopback 1
router eigrp 1
network 172.16.0.0 <----depending on the IOS version you're running, make sure that auto-summarization is off ( no auto-summ) and advertise only the specific subnet on the router. Each router now thinks that it is the has direct connectivity with the PC you're trying to ping. Do this on all three routers.
network 192.168.1.16 0.0.0.3
network 192.168.1.20 0.0.0.3
network 209.165.200.224 0.0.0.3
redistribute static
end

BRANCH2
en
conf t
hostname BRANCH2
int f 0/0
ip add 172.16.3.1 255.255.255.128
no shutdown
exit
int s 0/0
ip add 192.168.1.26 255.255.255.252
clock rate 64000
no shutdown
exit
int s 0/1
ip add 192.168.1.22 255.255.255.252
no shutdown
exit
router eigrp 1
network 172.16.0.0
network 192.168.1.20 0.0.0.3
network 192.168.1.24 0.0.0.3
end

Of course this is only a guess after a quick glance at your configs.

George