I need some help with an EIGRP poison reverse issue. I've setup an EIGRP OTP lab config using the INE lab topology. The lab simulates 4 x sites connected to an mpls core. One of those sites acts as EIGRP RR for OTP.
The problem I have is, even though my OTP RR has split-horizon disabled, my spokes are receiving some advertisements from the RR with an infinite metric, so they're never making it into the topology table or RIB. Others are being learnt correctly.
Can anyone explain why?
Site A: PE is R5, CE is R8, behind R8 is R10
Site B: PE is R3, CE is R7, behind R7 is R9
Site C: PE is R2, CE is R11, behind R11 is R12
Site D: PE is R1, CE is R6, also acting as OTP RR.
Sites A/B/C form a LISP tunnel back to R6, EIGRP neighbours appear, loopbacks for R9/R10/R12 are learnt, however, connected transit LAN and local LAN segments such as 18.104.22.168/24 and 22.214.171.124/24 are not being learnt. I have no other routing protocol running on the CE's, no loops that I can see, no SIA routes.
R7 EIGRP logs indicate:
R7#show ip eigrp events | inc 126.96.36.199
422 15:00:23.434 Ignored route, inaccessible: 188.8.131.52/24 metric(Infinity)
455 15:00:19.794 NDB delete: 184.108.40.206/24 1
456 15:00:19.794 RDB delete: 220.127.116.11/24 18.104.22.168
461 15:00:19.734 Send reply: 22.214.171.124/24 126.96.36.199
464 15:00:19.734 Rcv query dest/nh: 188.8.131.52/24 184.108.40.206
465 15:00:19.734 Metric set: 220.127.116.11/24 metric(Infinity)
The odd thing is, R7 (CE) learns R10's loopback, but not its LAN segment:
R7#show ip route 18.104.22.168
Routing entry for 22.214.171.124/32
Known via "eigrp 100", distance 90, metric 93999451, type internal
Redistributing via eigrp 100
Last update from 126.96.36.199 on LISP0, 23:31:42 ago
Routing Descriptor Blocks:
* 188.8.131.52, from 184.108.40.206, 23:31:42 ago, via LISP0
Route metric is 93999451, traffic share count is 1
Total delay is 5021 microseconds, minimum bandwidth is 56 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 2
R7#show ip route 220.127.116.11
% Subnet not in table
R7#show ip eigrp neighbors
EIGRP-IPv4 VR(OTP-TEST) Address-Family Neighbors for AS(100)
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
1 18.104.22.168 Gi1.37 12 23:34:23 813 4878 0 70
0 22.214.171.124 Gi1.79 12 1d03h 1 100 0 45
Someone please help!