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New Member

Unable to ping vlan 1 IP... lost

I have ... vlan 1, vlan 10, vlan 20. 

Internet firewall is 10.0.0.1

One switch is configured Layer 3 which does the LAN routing for the network it has one static route (ip route 0.0.0.0 0.0.0.0 10.0.0.1).  configured with vlan 10 SVI as 10.0.0.254 and vlan 20 as 10.1.0.254

Each switch is assigned 10.100.0.x for it's vlan 1

For some reason I am unable to ping the vlan 1 ip for one of the switches from vlan 10 or 20 ...  (Switch with vlan 1 -- 10.100.0.5) . I am able to ping the address of the switch with the issue from the CLI of the switches.  When i do a tracert for the switches ip in question  I get to the SVI / Default Gateway and then nothing.

Everything else works fine.  Internet etc....

What am I missing?  Some type of routing somewhere??

Here is the ip route from the Layer 3 switch

SW-A1#sh ip route

Codes: 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, E - EGP

       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

Gateway of last resort is 10.0.0.1 to network 0.0.0.0

     10.0.0.0/24 is subnetted, 3 subnets

C       10.0.0.0 is directly connected, Vlan10

C       10.1.0.0 is directly connected, Vlan20

C       10.100.0.0 is directly connected, Vlan1

S*   0.0.0.0/0 [1/0] via 10.0.0.1

2 REPLIES
New Member

Unable to ping vlan 1 IP... lost

Well it turns out this weird problem was the fact i enabled ip routing on one of the switches I wasn't suppose to.  Once I turned off ip routing and set the ip default-gateway things are now working correctly.

Purple

Unable to ping vlan 1 IP... lost

Hi,

so you can ping vlan1 interface from any other switch but can't traceroute from a client in vlan 10 or 20 to this switch?

Have you tried pinging this vlan ip address from one of the other switches with an extended ping sourcing from vlan 20 or 10?

Regards.

Alain

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