


R3#show run
Building configuration...


Current configuration : 1733 bytes
!
! Last configuration change at 11:20:29 UTC Mon Jan 19 2026
!
version 16.6
service timestamps debug datetime msec
service timestamps log datetime msec
platform qfp utilization monitor load 80
no platform punt-keepalive disable-kernel-core
!
hostname R3
!
boot-start-marker
boot-end-marker
!
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vrf definition Mgmt-intf
 !
 address-family ipv4
 exit-address-family
 !
 address-family ipv6
 exit-address-family
!
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no aaa new-model
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subscriber templating
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multilink bundle-name authenticated
!
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license udi pid ISR4321/K9 sn FDO23230MVZ
diagnostic bootup level minimal
spanning-tree extend system-id
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redundancy
 mode none
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interface Loopback100
 ip address 100.100.100.241 255.255.255.0
!
interface GigabitEthernet0/0/0
 no ip address
 shutdown
 negotiation auto
!
interface GigabitEthernet0/0/1
 no ip address
 shutdown
 negotiation auto
!
interface Serial0/1/0
 no ip address
 shutdown
!
interface Serial0/1/1
 ip address 1.1.1.6 255.255.255.252
!
interface Serial0/2/0
 no ip address
 shutdown
!
interface Serial0/2/1
 no ip address
 shutdown
!
interface GigabitEthernet0
 vrf forwarding Mgmt-intf
 no ip address
 shutdown
 negotiation auto
!
!
router eigrp 100
 network 1.1.1.0 0.0.0.3
 network 1.1.1.4 0.0.0.3
 network 172.16.10.0 0.0.0.255
 network 172.16.20.0 0.0.0.255
 network 172.16.30.0 0.0.0.255
 network 172.16.99.0 0.0.0.255
!
ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip tftp source-interface GigabitEthernet0
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control-plane
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line con 0
 transport input none
 stopbits 1
line aux 0
 stopbits 1
line vty 0 4
 login
!
wsma agent exec
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wsma agent config
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wsma agent filesys
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wsma agent notify
!
!
end


R3#show ip int brief
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet0/0/0   unassigned      YES unset  administratively down down
GigabitEthernet0/0/1   unassigned      YES unset  administratively down down
Serial0/1/0            unassigned      YES unset  administratively down down
Serial0/1/1            1.1.1.6         YES manual up                    up
Serial0/2/0            unassigned      YES unset  administratively down down
Serial0/2/1            unassigned      YES unset  administratively down down
GigabitEthernet0       unassigned      YES unset  administratively down down
Loopback100            100.100.100.241 YES manual up                    up
R3#



R3#
R3#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is not set

      1.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
D        1.1.1.0/30 [90/2293760] via 1.1.1.5, 00:52:59, Serial0/1/1
C        1.1.1.4/30 is directly connected, Serial0/1/1
L        1.1.1.6/32 is directly connected, Serial0/1/1
      100.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        100.100.100.0/24 is directly connected, Loopback100
L        100.100.100.241/32 is directly connected, Loopback100
      172.16.0.0/24 is subnetted, 4 subnets
D        172.16.10.0 [90/2296320] via 1.1.1.5, 00:52:59, Serial0/1/1
D        172.16.20.0 [90/2296320] via 1.1.1.5, 00:52:59, Serial0/1/1
D        172.16.30.0 [90/2296320] via 1.1.1.5, 00:52:59, Serial0/1/1
D        172.16.99.0 [90/2296320] via 1.1.1.5, 00:52:59, Serial0/1/1
R3#
