Cisco Router IOS XR Bedienungsanleitung PDF herunterladen (Seite 64)

Cisco IOS XR Training Page 64

RP/0/7/CPU0:R1(config-isis)#exit

Now we need to configure an interface to advertise via BGP – here we will

create Loop100 with an IP of 100.100.100.100/32

RP/0/7/CPU0:R1(config)#int loop100

RP/0/7/CPU0:R1(config-if)#ip add 100.100.100.100/32

RP/0/7/CPU0:R1(config-if)#comm

Thu Mar 29 23:12:31.681 UTC

RP/0/7/CPU0:R1(config-if)#exit

Now to configured eBGP.

We will peer with R2 loopback’s (2.2.2.2) and their remote AS of 2.

First we define our BGP processed (ID 1)

RP/0/7/CPU0:R1(config)#

RP/0/7/CPU0:R1(config-if)#router bgp 1

Define the networks we want to advertise

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp)#address-family ipv4 unicast

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-af)#net 100.100.100.100/32

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-af)#exit

Now we can configure our neighbor

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp)#nei 2.2.2.2

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-nbr)#remote-as 2

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-nbr)#e/jointfilesconvert/356165/bgp-multihop

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-nbr)#up loopback 0

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-nbr)#address-family ipv4 un

And finally commit our changes.

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-nbr-af)#comm

Thu Mar 29 23:18:06.455 UTC

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-nbr-af)#exit

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp-nbr)#exit

RP/0/7/CPU0:R1(config-/jointfilesconvert/356165/bgp)#exit

RP/0/7/CPU0:R1(config)#exit

RP/0/7/CPU0:R1#

Ok, now that we have that configured – time to look at our routing table, we

should see a route to 200.200.200.200/32.

RP/0/7/CPU0:R1#sh ip route

Thu Mar 29 23:24:25.533 UTC

Codes: C - connected, S - static, R - RIP, 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, E - EGP

i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2

ia - IS-IS inter area, su - IS-IS summary null, * - candidate default

U - per-user static route, o - ODR, L - local, G - DAGR

A - access/subscriber, (!) - FRR Backup path

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 104 105

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