CML 2.6.1 NXOS Issue with Intervlan Routing

[Raid3n]

Good day, 

I am using CML 2.6.1, have a simple topology built, with two hosts, and a single Nexus 9K device. Both hosts are connected to the device. The configurations are default, except the following:

- There are 2 vlans on the nexus, vlan 2 and vlan 3

- Host 1 is in vlan 2, Host 2 is in vlan 3

-Nexus feature for intervlan routing is enabled

-Nexus interfaces for vlan 2, and 3 both exist, as well as the vlans themselves.

Vlan 2- 192.168.2.254/24

Vlan 3 - 192.168.3.254/24

Host 1 - 192.168.2.1/24

Host 2 - 192.168.3.1/24

Host 1 and host 2 can both ping the vlan interface for their vlans on the nexus (.254), but cannot ping each other. Routes exist in the routing table as expected.

Interface configs:

interface Ethernet1/1
switchport access vlan 3

interface Ethernet1/2
switchport access vlan 2

interface Vlan2
no shutdown
ip address 192.168.2.254/24

interface Vlan3
no shutdown
ip address 192.168.3.254/24

Feature:

interface-vlan 1 enabled

This seems like a bug. I've tried this separately on another L3 image, and had no issues.

[liviu.gheorghe]

I just tested it in CML and it works as it should. Can you share the config of your Nexus?

[Raid3n]

!Command: show running-config
!Running configuration last done at: Tue Mar 26 20:51:20 2024
!Time: Tue Mar 26 22:08:45 2024

version 10.3(1) Bios:version
hostname Core1
vdc Core1 id 1
limit-resource vlan minimum 16 maximum 4094
limit-resource vrf minimum 2 maximum 4096
limit-resource port-channel minimum 0 maximum 511
limit-resource m4route-mem minimum 58 maximum 58
limit-resource m6route-mem minimum 8 maximum 8

feature interface-vlan
feature lacp

no password strength-check
username admin password 5 $5$FHHHLG$t3HL9jg7M1U.KD6WIl8b7xlhDFR32Ll1kcfy7fpCQOD
role network-admin
username cisco password 5 $5$IMAJFK$lfMzZzlUuJqWrjcGBPIpuaVSqzCUVHsPGbp/2nKKnP2
role network-admin
username cisco passphrase lifetime 99999 warntime 14 gracetime 3
ip domain-lookup
snmp-server user admin network-admin auth md5 482A81F671C51A294B3FB0B72BDACD6F14
46 priv aes-128 497687A1509702305266F78B36E5B56F0459 localizedV2key
snmp-server user cisco network-admin auth md5 37479DE042F734197B08CFF125CEB37C5C
4A priv aes-128 204FF4D63683394D3711D3AB6B88BC7D5C32 localizedV2key
rmon event 1 log trap public description FATAL(1) owner PMON@FATAL
rmon event 2 log trap public description CRITICAL(2) owner PMON@CRITICAL
rmon event 3 log trap public description ERROR(3) owner PMON@ERROR
rmon event 4 log trap public description WARNING(4) owner PMON@WARNING
rmon event 5 log trap public description INFORMATION(5) owner PMON@INFO

vlan 1-3

vrf context management

interface Vlan1

interface Vlan2
no shutdown
ip address 192.168.2.254/24

interface Vlan3
no shutdown
ip address 192.168.3.254/24

interface Ethernet1/1
switchport access vlan 3

interface Ethernet1/2
switchport access vlan 2

interface Ethernet1/3

interface Ethernet1/4

interface Ethernet1/5

interface Ethernet1/6

interface Ethernet1/7

interface Ethernet1/8

interface Ethernet1/9

interface Ethernet1/10

interface Ethernet1/11

interface Ethernet1/12

interface Ethernet1/13

interface Ethernet1/14

interface Ethernet1/15

interface Ethernet1/16

interface Ethernet1/17

interface Ethernet1/18

interface Ethernet1/19

interface Ethernet1/20

interface Ethernet1/21

interface Ethernet1/22

interface Ethernet1/23

interface Ethernet1/24

interface Ethernet1/25

interface Ethernet1/26

interface Ethernet1/27

interface Ethernet1/28

interface Ethernet1/29

interface Ethernet1/30

interface Ethernet1/31

interface Ethernet1/32

interface Ethernet1/33

interface Ethernet1/34

interface Ethernet1/35

interface Ethernet1/36

interface Ethernet1/37

interface Ethernet1/38

interface Ethernet1/39

interface Ethernet1/40

interface Ethernet1/41

interface Ethernet1/42

interface Ethernet1/43

interface Ethernet1/44

interface Ethernet1/45

interface Ethernet1/46

interface Ethernet1/47

interface Ethernet1/48

interface Ethernet1/49

interface Ethernet1/50

interface Ethernet1/51

interface Ethernet1/52

interface Ethernet1/53

interface Ethernet1/54

interface Ethernet1/55

interface Ethernet1/56

interface Ethernet1/57

interface Ethernet1/58

interface Ethernet1/59

interface Ethernet1/60

interface Ethernet1/61

interface Ethernet1/62

interface Ethernet1/63

interface Ethernet1/64

interface mgmt0
vrf member management
icam monitor scale

line console
line vty
boot nxos bootflash:/nxos64-cs.10.3.1.F.bin

[Raid3n · Accepted solution]

This issue is resolved. The problem was with the gateway configuration of the host connected to the Nexus.