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EdgeOS BGP 路由已收到但未註入

tag-icon • tag-icon vpn routing google-cloud-platform bgp ubiquiti-edgerouter
EdgeOS BGP 路由已收到但未註入

我正在嘗試使用 Google Cloud Platform 設定基於 IPSEC 的 BGP。 IPSEC 隧道已成功建立，並且 GCP 報告 BGP 會話已啟動。 EdgeMax 路由器正在接收路由，但不會將它們注入 RIB 中。

dan@router:~$ show ip bgp neighbors 169.254.0.1 received-routes
BGP table version is 7, local router ID is 169.254.0.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal
Origin codes: i - IGP, e - EGP, ? - incomplete
    Network          Next Hop            Metric    LocPrf       Weight Path
*>  10.142.0.0/20    169.254.0.1          100                   0       65000 ?

Total number of prefixes 1

dan@router:~$ show ip route
Codes: K - kernel, C - connected, S - static, R - RIP, B - BGP
       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
       > - selected route, * - FIB route, p - stale info
IP Route Table for VRF "default"
S    *> 0.0.0.0/0 [210/0] via 71.186.153.1, eth0
C    *> <external address> is directly connected, eth0
C    *> 127.0.0.0/8 is directly connected, lo
C    *> 169.254.0.0/30 is directly connected, vti0
S    *> 169.254.0.1/32 [1/0] is directly connected, vti0
C    *> 192.168.0.0/24 is directly connected, eth1
S    *> 192.168.42.0/24 [1/0] via 192.168.0.29, eth1

最初，本機路由器 ID 是我已刪除的介面的位址，因此我將其更新為 169.254.0.2，但這並沒有幫助。

我的日誌如下圖所示，每隔幾秒鐘重複一次：

Feb 20 16:01:30 router BGP[1679]:  BGP-6: [RIB] Scanning BGP Network Routes...
Feb 20 16:01:38 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [FSM] Keep-alive-Timer Expiry
Feb 20 16:01:38 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [FSM] State: Established Event: 11
Feb 20 16:01:38 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [ENCODE] Msg-Hdr: Type 4
Feb 20 16:01:38 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [ENCODE] Keepalive: 806 KAlive msg(s) sent
Feb 20 16:01:41 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [FSM] AS-Origination Timer Expiry
Feb 20 16:01:41 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [FSM] State: Established Event: 33
Feb 20 16:01:41 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [DECODE] Msg-Hdr: type 4, length 19
Feb 20 16:01:41 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [DECODE] Msg-Hdr: Requesting immediate Read (0)
Feb 20 16:01:41 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [DECODE] KAlive: Received!
Feb 20 16:01:41 router BGP[1679]:  BGP-6: 169.254.0.1-Outgoing [FSM] State: Established Event: 26

完整的配置在這裡：https://gist.github.com/danellis/82b471665cbe3fb7e8d788e03b8ab257

希望我只漏掉了一件小事。誰能看出它是什麼嗎？

答案1

我認為您需要啟用 ebgp 多路徑值為 4

我在這裡附上一個可以幫助您的配置：

$ show protocols bgp
 bgp 65501 {
     neighbor 10.1.255.254 {
         ebgp-multihop 4
         remote-as 65515
         soft-reconfiguration {
             inbound
         }
         update-source 10.0.1.1
     }
     parameters {
         no-fast-external-failover
         router-id 10.0.1.1
     }
     redistribute {
         connected {
         }
     }
     timers {
         holdtime 180
         keepalive 60
     }
 }

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