en
conf t
hostname ISP
int g0/0
ip add 178.207.179.1 255.255.255.248
no shu
ip nat inside
int g0/1
ip add 178.207.179.25 255.255.255.248
no shu
ip nat inside
int g0/2
ip add 10.101.6.100 255.255.255.0
no shu
ip nat outside
exit
ip access-list stan NAT
permit 178.207.179.0 0.0.0.7
permit 178.207.179.24 0.0.0.7
ip nat inside sour list NAT int g0/2 over
ip route 0.0.0.0 0.0.0.0 10.101.6.254
router bgp 31133
network 0.0.0.0
network 178.207.179.0 mask 255.255.255.248
network 178.207.179.24 mask 255.255.255.248
neig 178.207.179.4 remote-as 64500
exit
rtr-cod
en
conf t
hostname rtr-cod.cod.ssa2026.region
int g0/0
ip add 178.207.179.4 255.255.255.248
no shu
ip nat outside
int g0/1
ip add 10.1.0.1 255.255.255.252
no shu
ip nat inside
exit
int tun 100
ip add 10.0.0.1 255.255.255.252
tun mode gre ip
tun sou g0/0
tun des 178.207.179.28
no shu
ip access-list stan NAT
permit 10.1.0.0 0.0.0.3
permit 10.1.10.0 0.0.0.255
permit 10.1.30.0 0.0.0.255
permit 10.1.40.0 0.0.0.255
permit 10.1.50.0 0.0.0.255
ip nat inside sour list NAT int g0/0 over
router bgp 64500
neig 178.207.179.1 remote-as 31133
exit
router ospf 100
network 10.0.0.0 255.255.255.252 area 0
network 10.1.0.0 255.255.255.252 area 0
pass def
no pass g0/1
no pass tun 100
interface g0/1
ip ospf message-digest-key 1 md5 P@ssw0rd
ip ospf authentication message-digest
interface tun 100
ip ospf message-digest-key 1 md5 P@ssw0rd
ip ospf authentication message-digest
exit
ip name-server 10.1.10.10
ip domain-name cod.ssa2026.region
ntp server srv1-cod.cod.ssa2026.region iburst
aaa new-model
aaa authentication login default group radius
aaa authorization exec default group radius
radius server SRV
address ipv4 10.1.10.10 auth-port 1812 acct-port 1813
key cisco
exit
rtr-a
en
conf t
hostname rtr-a.office.ssa2026.region
int g0/0
ip add 178.207.179.28 255.255.255.248
no shu
ip nat outside
int g0/1
no shu
ip nat inside
exit
int g0/1.100
en dot 100
ip add 10.2.10.254 255.255.255.0
no shu
ip nat inside
int g0/1.200
en dot 200
ip add 10.2.20.254 255.255.255.0
no shu
ip nat inside
int g0/1.300
en dot 300
ip add 10.2.30.254 255.255.255.0
no shu
ip nat inside
int tun 100
ip add 10.0.0.2 255.255.255.252
tun mode gre ip
tun sou g0/0
tun des 178.207.179.4
no shu
ip access-list stan NAT
permit 10.2.10.0 0.0.0.255
permit 10.2.20.0 0.0.0.255
permit 10.2.30.0 0.0.0.255
ip nat inside sour list NAT int g0/0 over
ip route 0.0.0.0 0.0.0.0 178.207.179.25
exit
ip name-server 10.2.10.10
ip domain-name office.ssa2026.region
ntp server srv1-cod.cod.ssa2026.region iburst
router ospf 100
network 10.0.0.0 255.255.255.252 area 0
network 10.2.10.0 255.255.255.0 area 0
network 10.2.20.0 255.255.255.0 area 0
network 10.2.30.0 255.255.255.0 area 0
pass def
no pass tun 100
interface tun 100
ip ospf message-digest-key 1 md5 P@ssw0rd
ip ospf authentication message-digest
exit