Milan
Site 5 has a default route that points to an L3 switch directly connected off the AVPN router Gi0/0 interface. that L3 switch has a default route pointing to the firewall and the mout the internet.
The Site_3 router has statics for the LAN pointing into the L3 switch Vlan management int. The BGP is redistributing statics. The ISP has the default originate command in it's BGP statements.
Each site has it'sown AS#
Site_1#sh ip bgp nei
BGP neighbor is 172.16.42.6, remote AS 13aba, external link
BGP version 4, remote router ID 12.123.x.y
BGP state = Established, up for 20:04:42
Last read 00:00:08, last write 00:00:04, hold time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable (disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and received
Address family IPv4 Unicast: advertised and received
Graceful Restart Capability: received
Remote Restart timer is 120 seconds
Address families advertised by peer:
IPv4 Unicast (was not preserved
Enhanced Refresh Capability: advertised
Multisession Capability:
Stateful switchover support enabled: NO for session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 1 28
Keepalives: 1327 1203
Route Refresh: 0 0
Total: 1329 1232
Default minimum time between advertisement runs is 30 seconds
For address family: IPv4 Unicast
Session: 172.16.42.6
BGP table version 49, neighbor version 49/0
Output queue size : 0
Index 2, Advertise bit 0
2 update-group member
AF-dependant capabilities:
Outbound Route Filter (ORF) type (128) Prefix-list:
Receive-mode: received
Incoming update network filter list is 10
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 0 39 (Consumes 2496 bytes)
Prefixes Total: 0 43
Implicit Withdraw: 0 0
Explicit Withdraw: 0 4
Used as bestpath: n/a 39
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: -------- -------
distribute-list 0 63
Bestpath from this peer: 44 n/a
Invalid Path: 4 n/a
Total: 48 63
Number of NLRIs in the update sent: max 3, min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: never
Last Sent Refresh End-of-rib: never
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 0 0
Refresh End-of-RIB 0 0
Address tracking is enabled, the RIB does have a route to 172.16.42.6
Connections established 2; dropped 1
Last reset 20:04:55, due to Peer closed the session
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Connection is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 1
Local host: 172.16.42.5, Local port: 46193
Foreign host: 172.16.42.6, Foreign port: 179
Connection tableid (VRF): 0
Maximum output segment queue size: 50
Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes)
Event Timers (current time is 0x572BEEBC):
Timer Starts Wakeups Next
Retrans 1330 1 0x0
TimeWait 0 0 0x0
AckHold 1212 1192 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 71078 71077 0x572BF02F
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss: 355325512 snduna: 355350806 sndnxt: 355350806
irs: 2461159334 rcvnxt: 2461184009
sndwnd: 32407 scale: 0 maxrcvwnd: 16384
rcvwnd: 15206 scale: 0 delrcvwnd: 1178
SRTT: 1000 ms, RTTO: 1003 ms, RTV: 3 ms, KRTT: 0 ms
minRTT: 4 ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status Flags: active open
Option Flags: nagle, path mtu capable
IP Precedence value : 6
Datagrams (max data segment is 1460 bytes):
Rcvd: 2537 (out of order: 0), with data: 1211, total data bytes: 24674
Sent: 2543 (retransmit: 1, fastretransmit: 0, partialack: 0, Second Congestion: 0), with data: 1329, total data bytes: 25293
Packets received in fast path: 0, fast processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path: 0
TCP Semaphore 0x2311C6A0 FREE
Site_1#
router bgp 64xxa
no bgp log-neighbor-changes
network 10.42.20.0 mask 255.255.255.0
network 10.42.21.0 mask 255.255.255.0
network 10.42.22.0 mask 255.255.255.0
redistribute static
neighbor 172.16.42.6 remote-as 13aba
ip route 10.42.20.0 255.255.255.0 10.42.21.2 track 2
ip route 10.42.21.0 255.255.255.0 10.42.21.2 track 2
ip route 10.42.22.0 255.255.255.0 10.42.21.2 track 2
ip route 0.0.0.0 0.0.0.0 10.254.0.9
sMc
