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

  • 0
  • 1
  • Problem
  • Updated 6 months ago
  • Solved
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?
Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb

Posted 6 months ago

  • 0
  • 1
Photo of Patrick Voss

Patrick Voss, Alum

  • 11,574 Points 10k badge 2x thumb
Hello Beth,

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

Drew C., Community Manager

  • 38,410 Points 20k badge 2x thumb
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?
Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb
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.
Photo of Patrick Voss

Patrick Voss, Alum

  • 11,574 Points 10k badge 2x thumb
 Can you ping the gateway from the 116.9 device? If you would please respond with the "show vlan" output.
Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb

Yes if I run CMD I can ping the gateway from that device


Photo of Patrick Voss

Patrick Voss, Alum

  • 11,574 Points 10k badge 2x thumb
Has ipforwarding been enabled? This will allow the switch to route traffic outside the VLAN.
Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb

This is from our main core switch:

configure vlan v116 ipaddress 10.128.116.1 255.255.255.0
enable ipforwarding vlan v116

Photo of Patrick Voss

Patrick Voss, Alum

  • 11,574 Points 10k badge 2x thumb
Can you send me a "show vlan" and "show iproute" output?
Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb

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

Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb

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

Photo of Patrick Voss

Patrick Voss, Alum

  • 11,574 Points 10k badge 2x thumb
What IP address are you trying to ping?
Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb

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

Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb

I just figured this one out.  I feel really stupid


Photo of Drew C.

Drew C., Community Manager

  • 38,286 Points 20k badge 2x thumb
:)
now you have to tell us what the solution was
Photo of Patrick Voss

Patrick Voss, Alum

  • 11,574 Points 10k badge 2x thumb
How do you know it is not connecting? What test are you using?
Photo of Beth Dierks

Beth Dierks

  • 330 Points 250 badge 2x thumb

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