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TimothyRogers
Beginner

Apologies... old gear. ThinkServer RS140's talking to a 2950 Layer2 switch

I should qualify and say - trying to talk.

 

I have a small lab with a couple of servers, a couple of NAS devices, a switch a router... all the toys to make for a pleasant evening of testing.

 

I have sub interfaces on my router and traffic is getting out of the lab to the Internet for several of the subnets/VLANs

 

e.g. working dhcp config excerpt (Router) ISR 4221

ip dhcp pool OFFICE_HARDWIRE

  network 192.168.10.0 255.255.255.0

  default router 192.168.10.1

  dns-server 71.10.216.1

!

e.g. working interface config excerpt (Router) ISR 4221

interface GigabitEthernet0/0/1.10

  encapsulation dot1Q 10

  ip address 192.168.10.1 255.255.255.0

  ip nat inside

!

e.g. working config excerpt (L2 Switch) 2950

interface FastEthernet 0/23

  switchport access vlan 10

  switchport mode access

  spanning-tree portfast

!

So far so good... Then sadness....

 

e.g. not working dhcp config excerpt (Router) ISR 4221

ip dhcp pool ESX_SERVERS

  network 192.168.6.0 255.255.255.0

  default router 192.168.6.1

!

e.g. (likely) working interface config excerpt (Router) ISR 4221

interface GigabitEthernet0/0/1.6

  encapsulation dot1Q 6

  ip address 192.168.6.1 255.255.255.0

  ip nat inside

!

e.g. working config excerpt (L2 Switch) 2950

interface FastEthernet 0/9 - 10

  switchport access vlan 6

  switchport mode access

  spanning-tree portfast

!

 

Now I have applied the same config to a ThinkServer RS140 and it stubbornly fails to talk

I have statically addressed it and dynamically addressed it.

 

Oddly the show ip dhcp notes that it has two addresses allocated from within the range of an excluded address range that I configured, but obviously have not got working properly.

 

I have come across a few articles that alternately cite switchport access vlan ### (from VMWare) or trunkport (from Lenovo).

 

Anyone have some insight into what the best configuration to get these (recently upgraded to 6.7) servers talking?

 

Thanks to any who take the time to read and BIG thanks to someone who can dig me out of my >1.5 day hole.

 

v/r

T

 

 

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