Q1> Configure EIGRP with Hub-&-Spoke network
Q2> Split-horizon in the interface of EIGRP with Frame-relay is working by default.
Therefore, East and West networks can not share their loopback networks each other.
Turn off split-horizon in HQ
HQ: conf t
int s0/0.1
no ip split-horizon eigrp 25
Q3> All networks should be reachable including loopback interfaces via EIGRP
Q4> Each loopback addresses should be advertized with summary route to minimize routing table
HQ: conf t
int s0/0.1
ip summary-address eigrp 25 10.1.0.0 255.255.252.0
EAST: conf t
int s0/0.2
ip summary-address eigrp 25 10.2.0.0 255.255.252.0
WEST: conf t
int s0/0.3
ip summary-address eigrp 25 10.3.0.0 255.255.252.0
Q5> By default EIGRP consumes 50% of Bandwidth. Increase 30% more for efficiency.
HQ:
cont t
int s0/0.1
ip bandwidth-percent eigrp 25 80
Q6> Enable authentication between all EIGRP routers.(use 2 authentication keys)
Key 1
Secret key: cisco1
Accepted from: Midnight on August 10 2014 until 12:30 on August 11 2014
Sent from: Midnight on August 10 2014 until 12:30 on August 11 2014
Key 2
Secret key: cisco2
Accepted from: 11:00 on August 11 2014 until eternity
Sent from: 11:00 on August 11 2014 until eternity
HQ, EAST and WEST:
key chain EIGRP_KEYS
key 1
key-string cisco1
accept-lifetime 00:00:00 Aug 10 2014 12:30:00 Aug 11 2014
send-lifetime 00:00:00 Aug 10 2014 12:30:00 Aug 11 2014
key 2
key-string cisco2
accept-lifetime 11:00:00 Aug 11 2014 infinite
send-lifetime 11:00:00 Aug 11 2014 infinite
int s0/0.1
ip authentication mode eigrp 25 md5
ip authentication key-chain eigrp 25 EIGRP_KEYS
--------------------------------------------------------------------------------
Configuration
HQ
!key chain EIGRP_KEYS
key 1
key-string cisco1
accept-lifetime 00:00:00 Aug 10 2014 12:30:00 Aug 11 2014
send-lifetime 00:00:00 Aug 10 2014 12:30:00 Aug 11 2014
key 2
key-string cisco2
accept-lifetime 11:00:00 Aug 11 2014 infinite
send-lifetime 11:00:00 Aug 11 2014 infinite
!
interface Loopback1
ip address 10.1.1.1 255.255.255.0
!
interface Loopback2
ip address 10.1.2.1 255.255.255.0
!
interface Loopback3
ip address 10.1.3.1 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
no ip address
encapsulation frame-relay
clock rate 64000
no frame-relay inverse-arp
!
interface Serial0/0.1 multipoint
ip address 172.16.124.1 255.255.255.248
ip bandwidth-percent eigrp 25 80
ip authentication mode eigrp 25 md5
ip authentication key-chain eigrp 25 EIGRP_KEYS
no ip split-horizon eigrp 25
ip summary-address eigrp 25 10.1.0.0 255.255.252.0 5
snmp trap link-status
frame-relay map ip 172.16.124.3 103 broadcast
frame-relay map ip 172.16.124.2 102 broadcast
!
router eigrp 25
network 10.1.0.0 0.0.255.255
network 172.16.124.1 0.0.0.0
no auto-summary
EAST
!key chain EIGRP_KEYS
key 1
key-string cisco1
accept-lifetime 00:00:00 Aug 10 2014 12:30:00 Aug 11 2014
send-lifetime 00:00:00 Aug 10 2014 12:30:00 Aug 11 2014
key 2
key-string cisco2
accept-lifetime 11:00:00 Aug 11 2014 infinite
send-lifetime 11:00:00 Aug 11 2014 infinite
!
interface Loopback1
ip address 10.2.1.1 255.255.255.0
!
interface Loopback2
ip address 10.2.2.1 255.255.255.0
!
interface Loopback3
ip address 10.2.3.1 255.255.255.0
!
interface Serial0/0.2 multipoint
ip address 172.16.124.2 255.255.255.248
ip authentication mode eigrp 25 md5
ip authentication key-chain eigrp 25 EIGRP_KEYS
ip summary-address eigrp 25 10.2.0.0 255.255.252.0 5
snmp trap link-status
frame-relay map ip 172.16.124.3 201 broadcast
frame-relay map ip 172.16.124.1 201 broadcast
!
router eigrp 25
network 10.2.0.0 0.0.255.255
network 172.16.124.2 0.0.0.0
no auto-summary
WEST
!key chain EIGRP_KEYS
key 1
key-string cisco1
accept-lifetime 00:00:00 Aug 10 2014 12:30:00 Aug 11 2014
send-lifetime 00:00:00 Aug 10 2014 12:30:00 Aug 11 2014
key 2
key-string cisco2
accept-lifetime 11:00:00 Aug 11 2014 infinite
send-lifetime 11:00:00 Aug 11 2014 infinite
!
interface Loopback1
ip address 10.3.1.1 255.255.255.0
!
interface Loopback2
ip address 10.3.2.1 255.255.255.0
!
interface Loopback3
ip address 10.3.3.1 255.255.255.0
!
interface Serial0/0.3 multipoint
ip address 172.16.124.3 255.255.255.248
ip authentication mode eigrp 25 md5
ip authentication key-chain eigrp 25 EIGRP_KEYS
ip summary-address eigrp 25 10.3.0.0 255.255.252.0 5
snmp trap link-status
frame-relay map ip 172.16.124.2 301 broadcast
frame-relay map ip 172.16.124.1 301 broadcast
!
router eigrp 25
network 10.3.0.0 0.0.255.255
network 172.16.124.3 0.0.0.0
no auto-summary
Frame-relay
frame-relay switching!
interface Serial0/0
no ip address
encapsulation frame-relay
clock rate 2000000
frame-relay intf-type dce
frame-relay route 102 interface Serial0/1 201
frame-relay route 103 interface Serial0/2 301
frame-relay route 104 interface Serial0/3 401
frame-relay route 105 interface Serial0/4 501
frame-relay route 106 interface Serial0/5 601
!
interface Serial0/1
no ip address
encapsulation frame-relay
clock rate 2000000
frame-relay intf-type dce
frame-relay route 201 interface Serial0/0 102
frame-relay route 203 interface Serial0/2 302
frame-relay route 204 interface Serial0/3 402
frame-relay route 205 interface Serial0/4 502
frame-relay route 206 interface Serial0/5 602
!
interface Serial0/2
no ip address
encapsulation frame-relay
clock rate 2000000
frame-relay intf-type dce
frame-relay route 301 interface Serial0/0 103
frame-relay route 302 interface Serial0/1 203
frame-relay route 304 interface Serial0/3 403
frame-relay route 305 interface Serial0/4 503
frame-relay route 306 interface Serial0/5 603
!
interface Serial0/3
no ip address
encapsulation frame-relay
clock rate 2000000
frame-relay intf-type dce
frame-relay route 401 interface Serial0/0 104
frame-relay route 402 interface Serial0/1 204
frame-relay route 403 interface Serial0/2 304
frame-relay route 405 interface Serial0/4 504
frame-relay route 406 interface Serial0/5 604
!
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