172.16.0.0   255.255.0.0

eigrp as 20




5 networks

no one from br1 or br2 can telnet to hq
only odds from hq can telnet to hq

odds on br 2 can not ping out to hq or br1
odds on br 1 can not ping out to hq lan or br2 lan


hq 50 pcs  /26   255.255.255.192
172.16.0.0 network 
172.16.0.63 broadcast 
first 172.16.0.1
last 172.16.0.62

r1  20	pcs /27 255.255.255.224
172.16.0.64 network
172.16.0.95 broadcast
172.16.0.65 first
172.16.0.94 last
 


r2   15 pcs  /27  255.255.255.224
172.16.0.96 network
172.16.0.127 broadcast
172.16.0.97 first
172.16.0.126 last


wan 1 hq - br1  2 hosts /30  255.255.255.252
172.16.0.128 network
172.16.0.131 broadcast
172.16.0.129 first
172.16.0.130 last


wan 2 hq - br2  2 hosts  /30   255.255.255.252

172.16.0.132 network
172.16.0.135 broadcast
172.16.0.133 first
172.16.0.134 last



hostname R1
!
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no ip domain-lookup
!
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interface FastEthernet0/0
 ip address 172.16.0.65 255.255.255.224
 ip access-group no-ping-odd in
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 172.16.0.129 255.255.255.252
 clock rate 64000
!
interface Serial0/0/1
 no ip address
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
router eigrp 20
 network 172.16.0.64 0.0.0.31
 network 172.16.0.128 0.0.0.3
 auto-summary
!
ip classless
!
!
ip access-list extended no-ping-odd
 deny icmp 172.16.0.64 0.0.0.30 172.16.0.0 0.0.0.63 echo
 permit tcp any any
!
!
!
!
!
line con 0
line vty 0 4
 password cisco
 login
!
!
!
end