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Author Topic: SEC0257 (DVTI Part 2) - Virtual-Access interface routes not working  (Read 512 times)

Offline ChrisD777

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Hi,
I have recreated the topology of the the FlexVPN series in my own lab (another great video series BTW!)
So far, everything has worked exactly as per the videos, but I have now hit a roadblock:
In SEC0257 (DVTI Part 2) I have configured R1 to assign Tunnel IP addresses from a local pool.
The Branch Routers get the negotiated IP address correctly, and both Tunnels (to BR1 and BR2) come up OK.
However, R1 does not get the auto-generated static routes to the Tunnel endpoints via the Virtual-Access interfaces.
This means I don't have reachability across the tunnels and am unable to set up BGP routing.

I am using IOL 15.4(2)T4 images on EVE-NG for my Routers, but swapped R1 to CSR1000V (IOS XE 03.17.00.S / 15.6(1)S ) to see if it would help (it didn't).

Any ideas?


R1#show ip route static
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, 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
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is 1.1.1.1 to network 0.0.0.0

S*    0.0.0.0/0 [1/0] via 1.1.1.1
      172.16.0.0/16 is variably subnetted, 6 subnets, 4 masks
S        172.16.0.0/16 [1/0] via 172.16.1.1

R1#show ip int brief
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet1       1.1.1.11        YES NVRAM  up                    up     
GigabitEthernet2       172.16.1.2      YES NVRAM  up                    up     
GigabitEthernet3       unassigned      YES NVRAM  administratively down down   
GigabitEthernet4       unassigned      YES NVRAM  administratively down down   
Loopback0              172.16.0.2      YES NVRAM  up                    up     
Loopback1              172.16.255.1    YES NVRAM  up                    up     
Virtual-Access1        172.16.255.1    YES unset  up                    up     
Virtual-Access2        172.16.255.1    YES unset  up                    up     
Virtual-Template1      172.16.255.1    YES unset  up                    down   


BR1#show ip int brief
Interface                  IP-Address      OK? Method Status                Protocol
Ethernet0/0                2.2.2.2         YES NVRAM  up                    up     
Ethernet0/1                172.17.1.1      YES NVRAM  up                    up     
Ethernet0/2                unassigned      YES NVRAM  administratively down down   
Ethernet0/3                unassigned      YES NVRAM  administratively down down   
Loopback0                  172.17.0.1      YES NVRAM  up                    up     
Tunnel1                    172.16.255.61   YES NVRAM  up                    up   

Offline MC

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Re: SEC0257 (DVTI Part 2) - Virtual-Access interface routes not working
« Reply #1 on: March 11, 2018, 09:06:31 PM »
The video uses ISR4K router running 16+ code so if you are using anything lower, you might have the issue. Some people have also reported the same. Some have suggested to put "crypto ikev2 authorization policy default" on the spoke side to force the hub to inject the route. Give it a try and see if that works.

 

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