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cisco:bgp:ios-xe_labs:lab13
! Configure directly connected neighbors with iBGP and Tunnels
hostname hub interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface Tunnel1 ip address 10.0.0.1 255.255.255.252 no ip redirects ip nhrp authentication cisco ip nhrp map 10.0.0.2 172.16.0.6 ip nhrp network-id 1 tunnel source GigabitEthernet4 tunnel mode gre multipoint tunnel key 1 ! interface GigabitEthernet4 ip address 172.16.0.5 255.255.255.252 negotiation auto no mop enabled no mop sysid ! router bgp 65000 bgp router-id 1.1.1.1 bgp log-neighbor-changes bgp listen range 10.0.0.0/24 peer-group tst no bgp default ipv4-unicast neighbor tst peer-group neighbor tst remote-as 65000 ! address-family ipv4 network 1.1.1.1 mask 255.255.255.255 network 172.16.0.5 neighbor tst activate neighbor tst route-reflector-client exit-address-family ! --------------------- hostname spoke1 interface Loopback0 ip address 3.3.3.3 255.255.255.255 ! interface Tunnel1 ip address 10.0.0.2 255.255.255.252 ip nhrp authentication cisco ip nhrp map 10.0.0.1 172.16.0.5 ip nhrp network-id 1 ip nhrp nhs 10.0.0.1 tunnel source GigabitEthernet4 tunnel destination 172.16.0.5 tunnel key 1 ! interface GigabitEthernet4 ip address 172.16.0.6 255.255.255.252 negotiation auto no mop enabled no mop sysid ! router bgp 65000 bgp router-id 3.3.3.3 bgp log-neighbor-changes no bgp default ipv4-unicast neighbor 10.0.0.1 remote-as 65000 ! address-family ipv4 network 3.3.3.3 mask 255.255.255.255 neighbor 10.0.0.1 activate exit-address-family ! ---------------------- hub#show dmvpn Legend: Attrb --> S - Static, D - Dynamic, I - Incomplete N - NATed, L - Local, X - No Socket T1 - Route Installed, T2 - Nexthop-override, B - BGP C - CTS Capable, I2 - Temporary # Ent --> Number of NHRP entries with same NBMA peer NHS Status: E --> Expecting Replies, R --> Responding, W --> Waiting UpDn Time --> Up or Down Time for a Tunnel ========================================================================== Interface: Tunnel1, IPv4 NHRP Details Type:Spoke, NHRP Peers:1, # Ent Peer NBMA Addr Peer Tunnel Add State UpDn Tm Attrb ----- --------------- --------------- ----- -------- ----- 1 172.16.0.6 10.0.0.2 NHRP never SC ! hub#show ip nhrp 10.0.0.2/32 via 10.0.0.2 Tunnel1 created 00:49:40, never expire Type: static, Flags: NBMA address: 172.16.0.6 ! hub#show ip int br | i Tunnel Tunnel1 10.0.0.1 YES manual up up ! hub#show int tunnel1 Tunnel1 is up, line protocol is up Hardware is Tunnel Internet address is 10.0.0.1/30 MTU 9972 bytes, BW 100 Kbit/sec, DLY 50000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation TUNNEL, loopback not set Keepalive not set Tunnel linestate evaluation up Tunnel source 172.16.0.5 (GigabitEthernet4) ! hub#show ip bgp summ BGP router identifier 1.1.1.1, local AS number 65000 BGP table version is 3, main routing table version 3 2 network entries using 496 bytes of memory 2 path entries using 272 bytes of memory 2/2 BGP path/bestpath attribute entries using 576 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 1344 total bytes of memory BGP activity 2/0 prefixes, 2/0 paths, scan interval 60 secs 2 networks peaked at 16:20:39 Aug 25 2025 UTC (00:19:37.116 ago) Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd *10.0.0.2 4 65000 26 26 3 0 0 00:19:36 1 * Dynamically created based on a listen range command Dynamically created neighbors: 1, Subnet ranges: 1 BGP peergroup tst listen range group members: 10.0.0.0/24 Total dynamically created neighbors: 1/(100 max), Subnet ranges: 1 ! hub#show ip bgp | b Network Network Next Hop Metric LocPrf Weight Path *> 1.1.1.1/32 0.0.0.0 0 32768 i *>i 3.3.3.3/32 10.0.0.2 0 100 0 i ! hub#ping 3.3.3.3 # See screenshot 2025-08-25-1142 for Wireshark output
cisco/bgp/ios-xe_labs/lab13.txt · Last modified: by Name
