07-28-2007 06:22 AM - edited 03-05-2019 05:32 PM
Hello,
I have a 4507r and have added a new interface vlan 75 with an ip address of 10.75.0.1. I have created an ospf route for the 10.75.0.0 network in the 0 area but for some reason I cannot ping it.
Here is the config in question...
interface Vlan75
ip address 10.75.0.1 255.255.0.0
no ip redirects
!
router ospf 2
log-adjacency-changes
redistribute static metric 200 subnets
network 10.50.0.0 0.0.255.255 area 0
network 10.75.0.0 0.0.255.255 area 0
When I do a show ip route 10.50.0.0 I get..
Routing entry for 10.50.0.0/16
Known via "connected", distance 0, metric 0 (connected, via interface)
Routing Descriptor Blocks:
* directly connected, via Vlan23
Route metric is 0, traffic share count is 1
but for 10.75.0.0 I get
% Subnet not in table
Any ideas?
Solved! Go to Solution.
07-28-2007 12:55 PM
William,
The problem is on the 4948 (vlan 75 is down), please do the following, and please make sure that vlan 75 is present on the 4948:
no ip default-gateway 10.75.0.1
ip route 0.0.0.0 0.0.0.0 10.75.0.1
ip routing
HTH,
Mohammed Mahmoud.
07-28-2007 06:27 AM
Hi William,
Can you issue a command "sh interface vlan 75" and make sure interface is up and up? If interface is in line protocol down state then route will not exist in routing table.
Also if the interface is in line protocol down state can you make sure if you have any device connected physically to vlan 75 or any trunk port which allows this vlan?
Regards,
Ankur
07-28-2007 07:11 AM
It does show down and down... Weird as the two interfaces I added to the vlan show up and up...
I have created a portchannel with the following config...
interface Port-channel2
switchport
switchport access vlan 75
switchport mode access
switchport nonegotiate
I have added two interfaces...
interface GigabitEthernet3/31
description Grouped with port37 To VMWARE In Lab
switchport access vlan 75
switchport mode access
switchport nonegotiate
channel-group 2 mode on
interface GigabitEthernet3/37
description Grouped with port31 To VMWARE In Lab
switchport access vlan 75
switchport mode access
switchport nonegotiate
channel-group 2 mode on
Other end is a 4948 with ports 1 & 2 having
channel-group 2 mode auto
07-28-2007 07:28 AM
hi,
Can you please make sure that you've added the VLAN itself to the switch.
HTH,
Mohammed Mahmoud.
07-28-2007 07:40 AM
which switc are you referring to?
07-28-2007 07:46 AM
Hi William,
On the switch that you've created the SVI interface (interface vlan) please make sure that you've added the vlan to the switch (either via the vlan database mode or the global configuration mode).
HTH,
Mohammed Mahmoud.
07-28-2007 07:54 AM
I have created interface vlan 75 on both devices. I can ping 10.75.0.1 from my desk (10.50. network) but cannot ping 10.75.0.2? ... I can do it from the 4507 (10.75.0.1) to the 4948 (10.75.0.2) and the reverse, but I cannot ping 10.75.0.2 from another network.
07-28-2007 07:59 AM
Hi,
You have said that the interface vlan 75 is down/down then how can you ping it, can you please provide us with a "show ip interface brief" and a "show vlan" from the 4507, and can you please elaborate more on your network topology.
HTH,
Mohammed Mahmoud.
07-28-2007 08:08 AM
Hello,
Sorry... Forgot to mention that I can now ping the Vlan 75 ip from anywhere. I noticed the Vlan 75 was shutdown...
On the 4948 the ip I put on the interface vlan 75 is 10.75.0.2 and I cannot ping it from another network.
sh ip int brief from 4507
Vlan75 10.75.0.1 YES manual up up
show vlan from 4507
75 VMWARE active Po2
sh vlan from the 4948
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi1/37, Gi1/38, Gi1/39, Gi1/40
Gi1/41, Gi1/42, Gi1/43, Gi1/44
Gi1/45, Gi1/46, Gi1/47, Gi1/48
75 VMWARE active Gi1/1, Gi1/2, Gi1/3, Gi1/4
Gi1/5, Gi1/6, Gi1/7, Gi1/8
Gi1/9, Gi1/10, Gi1/11, Gi1/12
Gi1/13, Gi1/14, Gi1/15, Gi1/16
Gi1/17, Gi1/18, Gi1/19, Gi1/20
Gi1/21, Gi1/22, Gi1/23, Gi1/24
Gi1/25, Gi1/26, Gi1/27, Gi1/28
Gi1/29, Gi1/30, Gi1/31, Gi1/32
Gi1/33, Gi1/34, Gi1/35, Gi1/36
07-28-2007 08:28 AM
Did I lose you?
07-28-2007 08:32 AM
Hey William,
The point here is why would you need interface VLAN 75 on both switches.
HTH,
Mohammed Mahmoud.
07-28-2007 08:40 AM
Two questions...
If I don not have the second vlan, by that I mean vlan 75 on the 4948, then how can I get around the vlan mismatch error I get when they are connected?
Also why can I not ping the ip I put on the interface vlan 75 on the 4948? I can only do it from the directly connected Core 4507 and from no where else? I put a default gateway on the 4948 pointing to 10.75.0.1 but no dice...
07-28-2007 08:49 AM
William,
Can you elaborate more on your topology (how is your devices connected and from where are you doing the tests).
Can you please post the error you've talked about and attach the complete configuration of both switches.
HTH,
Mohammed Mahmoud.
07-28-2007 09:37 AM
I have modified the config as you said... Removed the Vlan 75 on the 4948 and am just going with native Vlan 1... Problem is now none of it works...
Here si the config as it is now... After the changes described...
The 4507r is the core and has many distribution switches connected to it, now including this 4948.
What I'm looking to do it create a 10.75.0.0/16 network and channel-group 2 ports together to connect from the 4507 to two channel-grouped ports on the 4948 distribution switch. The 4948 would have a management IP of 10.75.0.2 and all the ports on Vlan 1 would be on the 10.75.0.0/16 network.
You will notice another vlan on the 4948 which I just want to be a private grouping of ports on the same vlan and not accessible to anything else.
07-28-2007 10:16 AM
My two ports on the 4507 are now in err-disabled status. And it won't reset them if I shut and then no shut.
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