zebra is an IP routing manager
https://frrouting.org/
| Install on Ubuntu | Install Ubuntu Server as VM on linux based from ISO or vmdk username and password: osboxes / osboxes.org |
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| https://deb.frrouting.org/ # add GPG key
curl -s https://deb.frrouting.org/frr/keys.asc | sudo apt-key add -
# update and install FRR
sudo apt update && sudo apt install frr frr-pythontools |
| Start protocols | OSPF and BGP |
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| start | vi /etc/frr/daemons service frr restart
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| check | ps -ef | grep frr |
| Add Interface | FRR will use the linux interfaces |
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| by default |
Example 1:
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osboxes# show interface brief
Interface Status VRF Addresses
--------- ------ --- ---------
ens33 up default 192.168.235.226/24
ens38 up default 10.1.4.220/24
lo up default
osboxes#
Example 2:
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FRRouting# show interface brief
Interface Status VRF Addresses
--------- ------ --- ---------
eth0 up default 192.168.0.207/24
eth1 up default 10.1.4.100/24
lo up default 1.1.40.1/24
FRRouting#
|
| add loopback | Link FRR1 ifconfig lo:10 1.1.10.1 netmask 255.255.255.255 up ifconfig lo:20 1.1.10.2 netmask 255.255.255.255 up FRR2: ifconfig lo:10 1.1.20.1 netmask 255.255.255.255 up ifconfig lo:20 1.1.20.2 netmask 255.255.255.255 up
root@FRRouting:~# apt install net-tools
root@FRRouting:~# ifconfig lo:40 1.1.40.1 netmask 255.255.255.0 up
root@FRRouting:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet 1.1.40.1/24 scope global lo:40 <<<<<<<<<<<<<<<<<<<<<<<<<<<< New loopback interface
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
root@FRRouting:~# vtysh show interface brief
FRRouting# show interface brief
Interface Status VRF Addresses
--------- ------ --- ---------
eth0 up default 192.168.0.207/24
eth1 up default 10.1.4.100/24
lo up default 1.1.40.1/24
FRRouting#
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| Access the FRRouting | sudo vtysh |
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show running-config |
internet-router# show running-config
Building configuration...
Current configuration:
!
frr version 5.0.1
frr defaults traditional
hostname internet-router
no ipv6 forwarding
log stdout
!
password zebra
!
!
line vty
!
end
internet-router#
!
router bgp 6000
neighbor 1.1.1.128 remote-as 100
neighbor 1.1.1.128 description -= Seattle Branch Office =-
neighbor 1.1.1.128 interface bo1
neighbor 2.2.2.128 remote-as 200
neighbor 2.2.2.128 description -= Dallas Branch Office =-
neighbor 2.2.2.128 interface bo2
neighbor 3.3.3.128 remote-as 300
neighbor 3.3.3.128 description -= Boston Datacenter =-
neighbor 3.3.3.128 interface dc
!
address-family ipv4 unicast
network 1.1.1.0/24
network 2.2.2.0/24
network 3.3.3.0/24
exit-address-family
!
!
interface bo1
ip ospf 1 area 0.0.0.1
!
interface bo2
ip ospf 2 area 0.0.0.2
!
interface dc
ip ospf 3 area 0.0.0.3
!
router ospf 1
ospf router-id 1.1.1.1
redistribute connected
distribute-list blockmgmt out connected
!
router ospf 2
ospf router-id 2.2.2.2
redistribute connected
distribute-list blockmgmt out connected
!
router ospf 3
ospf router-id 3.3.3.3
redistribute connected
distribute-list blockmgmt out connected
!
access-list blockmgmt deny 192.168.7.0/24
access-list blockmgmt permit any
access-list all permit any
|
| show bgp summary
internet-router# show bgp summary
IPv4 Unicast Summary:
BGP router identifier 192.168.7.101, local AS number 6000 vrf-id 0
BGP table version 3
RIB entries 5, using 760 bytes of memory
Peers 3, using 62 KiB of memory
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
1.1.1.128 4 100 0 0 0 0 0 never Active
2.2.2.128 4 200 0 0 0 0 0 never Active
3.3.3.128 4 300 0 0 0 0 0 never Active
Total number of neighbors 3
internet-router#
|
| show bgp neighbors
|
| show bgp ipv4
internet-router# show bgp ipv4
BGP table version is 3, local router ID is 192.168.7.101, vrf id 0
Status codes: s suppressed, d damped, h history, * valid, > best, = multipath,
i internal, r RIB-failure, S Stale, R Removed
Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 1.1.1.0/24 0.0.0.0 0 32768 i
*> 2.2.2.0/24 0.0.0.0 0 32768 i
*> 3.3.3.0/24 0.0.0.0 0 32768 i
Displayed 3 routes and 3 total paths
internet-router#
|
| show ip route
internet-router# show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
F - PBR,
> - selected route, * - FIB route
O[1] 1.1.1.0/24 [110/100] is directly connected, bo1, 05:46:02
C>* 1.1.1.0/24 is directly connected, bo1, 05:46:02
O[2] 2.2.2.0/24 [110/100] is directly connected, bo2, 05:46:01
C>* 2.2.2.0/24 is directly connected, bo2, 05:46:01
O[3] 3.3.3.0/24 [110/100] is directly connected, dc, 05:46:02
C>* 3.3.3.0/24 is directly connected, dc, 05:46:02
C>* 4.4.4.0/24 is directly connected, yum, 05:46:01
C>* 192.168.7.0/24 is directly connected, mgmt, 05:46:01
internet-router#
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| OSPF |
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| show ip ospf border-routers interface mpls-te route vrf
database json neighbor router-info vrfs |
| show ip ospf neighbor show ip ospf interface show ip ospf database
FRR2-HQ# show ip ospf neighbor
OSPF Instance: 1
Neighbor ID Pri State Dead Time Address Interface RXmtL RqstL DBsmL
10.1.6.2 1 Full/DROther 30.224s 10.1.6.2 eth1:10.1.6.12 0 0 0
FRR2-HQ# show ip ospf interface
OSPF Instance: 1
eth1 is up
ifindex 3, MTU 1500 bytes, BW 10000 Mbit <UP,BROADCAST,RUNNING,MULTICAST>
Internet Address 10.1.6.12/24, Broadcast 10.1.6.255, Area 0.0.0.0
MTU mismatch detection: enabled
Router ID 10.1.6.12, Network Type POINTOPOINT, Cost: 10
Transmit Delay is 1 sec, State Point-To-Point, Priority 1
No backup designated router on this network
Multicast group memberships: OSPFAllRouters
Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5
Hello due in 7.340s
Neighbor Count is 1, Adjacent neighbor count is 1
FRR2-HQ# show ip ospf database
OSPF Instance: 1
OSPF Router with ID (10.1.6.12)
Router Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum Link count
10.1.6.2 10.1.6.2 108 0x80000003 0xaf18 2
10.1.6.12 10.1.6.12 107 0x80000002 0x3f73 2
AS External Link States
Link ID ADV Router Age Seq# CkSum Route
10.1.16.1 10.1.6.12 117 0x80000001 0x8df7 E2 10.1.16.1/32 [0x0]
10.1.16.2 10.1.6.12 117 0x80000001 0x8301 E2 10.1.16.2/32 [0x0]
10.1.16.3 10.1.6.12 117 0x80000001 0x790a E2 10.1.16.3/32 [0x0]
192.168.0.0 10.1.6.12 117 0x80000001 0x2513 E2 192.168.0.0/24 [0x0]
FRR2-HQ#
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