ExtremeSwitching (EXOS)

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New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

Patrick Voss

Patrick Voss02-09-2018 18:06

  • 1.  New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 13:25
    I have created a new Vlan on our main switch and can ping the Vlan's gateway from all areas but if we try to use an IP address from that Vlan it will not work. Any ideas on what needs to be fixed?


  • 2.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 13:42
    Hello Beth,

    This could be a couple of things. What is not working? Can you please elaborate on the problem?


  • 3.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 13:42
    Is ping what you're expecting to work with these new IPs? What device(s) are on this new VLAN? Did you add other ports to the VLAN so that these devices have connectivity?


  • 4.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 13:55
    We added this Vlan with 254 usable IP addresses. The gateway is 116.1 and this we are able to ping successfully from any of our edge switches and or devices we are trying to connect. So we were trying to use 116.9 with subnet of 255.255.255.0 and then the 116.1 gateway but it never connects.


  • 5.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 17:42
    Can you ping the gateway from the 116.9 device? If you would please respond with the "show vlan" output.


  • 6.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 17:51
    Yes if I run CMD I can ping the gateway from that device



  • 7.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 17:53
    Has ipforwarding been enabled? This will allow the switch to route traffic outside the VLAN.


  • 8.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:00
    This is from our main core switch:

    configure vlan v116 ipaddress 10.128.116.1 255.255.255.0
    enable ipforwarding vlan v116



  • 9.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:02
    Can you send me a "show vlan" and "show iproute" output?


  • 10.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:03
    Here is the Show Vlan:

    VLAN Interface with name v116 created by user
    Admin State: Enabled Tagging: 802.1Q Tag 116
    Description: None
    Virtual router: VR-Default
    IPv4 Forwarding: Enabled
    IPv4 MC Forwarding: Disabled
    Primary IP: 10.128.116.1/24
    IPv6 Forwarding: Disabled
    IPv6 MC Forwarding: Disabled
    IPv6: None
    STPD: None
    Protocol: Match all unfiltered protocols
    Loopback: Disabled
    NetLogin: Disabled
    OpenFlow: Disabled
    TRILL: Disabled
    QosProfile: None configured
    Egress Rate Limit Designated Port: None configured
    Flood Rate Limit QosProfile: None configured
    Ports: 14. (Number of active ports=8)
    Untag: 3:19
    Tag: 1:4, *1:29, *1:31, 2:21, *2:29, *2:31, *2:32,
    3:6, *3:29, 4:23, 4:30, *4:31, *4:32
    Flags: (*) Active, (!) Disabled, (g) Load Sharing port



  • 11.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:04
    Here is the Show Iproute:

    Ori Destination Gateway Mtr Flags VLAN Duration
    #s Default Route 10.128.211.11 1 UG---S-um--f- v211 532d:3h:42m:46s
    #d 10.128.0.0/22 10.128.0.1 1 U------um--f- v113 532d:3h:42m:55s
    #d 10.128.8.0/21 10.128.8.1 1 U------um--f- v50 532d:3h:42m:56s
    #d 10.128.100.0/24 10.128.100.1 1 U------um--f- v100 532d:3h:42m:56s
    #d 10.128.101.0/24 10.128.101.1 1 U------um--f- v101 532d:3h:42m:55s
    #d 10.128.102.0/24 10.128.102.1 1 U------um--f- v102 532d:3h:42m:55s
    #d 10.128.103.0/24 10.128.103.1 1 U------um--f- v103 532d:3h:42m:55s
    #d 10.128.104.0/24 10.128.104.1 1 U------um--f- v104 532d:3h:42m:55s
    #d 10.128.105.0/24 10.128.105.1 1 U------um--f- v105 532d:3h:42m:56s
    #d 10.128.106.0/24 10.128.106.1 1 U------um--f- v106 532d:3h:42m:55s
    #d 10.128.107.0/24 10.128.107.1 1 U------um--f- v107 532d:3h:42m:55s
    #d 10.128.108.0/24 10.128.108.1 1 U------um--f- v108 532d:3h:42m:55s
    #d 10.128.109.0/24 10.128.109.1 1 U------um--f- v109 532d:3h:42m:55s
    #d 10.128.110.0/24 10.128.110.1 1 U------um--f- v110 532d:3h:42m:55s
    #d 10.128.111.0/24 10.128.111.1 1 U------um--f- v111 532d:3h:42m:56s
    #d 10.128.112.0/24 10.128.112.1 1 U------um--f- v112 532d:3h:42m:55s
    #d 10.128.114.0/23 10.128.114.1 1 U------um--f- v114 532d:3h:42m:55s
    #d 10.128.116.0/24 10.128.116.1 1 U------um--f- v116 177d:3h:31m:21s
    #d 10.128.118.0/24 10.128.118.1 1 U------um--f- v118 532d:3h:42m:55s
    #d 10.128.120.0/24 10.128.120.1 1 U------um--f- v120 532d:3h:42m:55s
    #d 10.128.140.0/24 10.128.140.1 1 U------um--f- v140 532d:3h:42m:55s
    d 10.128.200.0/24 10.128.200.1 1 -------um---- v200 532d:3h:42m:55s
    #d 10.128.211.0/24 10.128.211.1 1 U------um--f- v211 532d:3h:42m:55s



  • 12.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:06
    What IP address are you trying to ping?


  • 13.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:09
    If I ping a device that is currently configured to 116.2 I get nothing back even on the switch:

    Ping(ICMP) 10.128.116.2: 4 packets, 8 data bytes, interval 1 second(s).

    --- 10.128.116.2 ping statistics ---
    4 packets transmitted, 0 packets received, 100% loss
    round-trip min/avg/max = 0/0/0 ms
    Slot-1 Main-96.7 # ping 10.128.116.1
    Ping(ICMP) 10.128.116.1: 4 packets, 8 data bytes, interval 1 second(s).
    16 bytes from 10.128.116.1: icmp_seq=0 ttl=64 time=0.211 ms
    16 bytes from 10.128.116.1: icmp_seq=1 ttl=64 time=0.085 ms
    16 bytes from 10.128.116.1: icmp_seq=2 ttl=64 time=0.089 ms
    16 bytes from 10.128.116.1: icmp_seq=3 ttl=64 time=0.086 ms



  • 14.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:10
    I just figured this one out. I feel really stupid



  • 15.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:11
    How do you know it is not connecting? What test are you using?


  • 16.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:14
    I don't want too :)

    Most of our equipment out on the shopfloor is configure to the 114Vlan, I never updated the port on the edge switch to reflect the 116Vlan!!!! Ugh



  • 17.  RE: New Vlan on our main switch but cannot use any of the IP addresses in that Vlan

    Posted 02-09-2018 18:10
    :)
    now you have to tell us what the solution was