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No TCP between hosts, ping works fine

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I have ESXi 5 installed on a Dell C524-TY with two NIC's and have configured several Solaris 10 update 10 hosts with physical and VLAN interfaces. There are two Cisco switches between the NIC's with trunk ports setup between them and to the server. The physical interfaces have connectivity through the switches on VLAN 1, ssh, ping, etc. The VLAN interfaces are setup for VLAN 2000 and I can ping between them no problem, but ssh or any kind of TCP connection just times out. I can also ping between VLAN (SVI) interfaces setup on the switches and telnet from one switch to another, as well as ping the vhosts. When I run a snoop I see TCP requests arrive but they're from different IP addresses than what is assigned.

 

On the receiving host:

 

e1000g2000001: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 3

        inet 10.187.10.1 netmask ffffff00 broadcast 10.187.10.255

        ether 0:c:29:c1:5:96

[root@amboycsm01](07/17/13 07:53 AM US/Pacific)          [/root]

-->snoop -d e1000g2000001 tcp

Using device e1000g2000001 (promiscuous mode)

10.187.53.162 -> amboycsm01-s1 TCP D=22 S=35398 Syn Seq=1284035143 Len=0 Win=49640 Options=<mss 1460,nop,wscale 0,nop,nop,sackOK>

10.187.53.161 -> amboycsm01-s1 TCP D=22 S=35398 Syn Seq=1284035143 Len=0 Win=49640 Options=<mss 1460,nop,wscale 0,nop,nop,sackOK>

10.187.53.160 -> amboycsm01-s1 TCP D=22 S=35398 Syn Seq=1284035143 Len=0 Win=49640 Options=<mss 1460,nop,wscale 0,nop,nop,sackOK>

 

From the transmitting host:

 

e1000g2000000: flags=201100843<UP,BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4,CoS> mtu 1500 index 2

        inet 10.187.10.9 netmask ffffff00 broadcast 10.187.10.255

        ether 0:c:29:30:c0:a4

bash-3.2# ping 10.187.10.1

10.187.10.1 is alive

bash-3.2# ssh 10.187.10.1

^C

 

On the ESXi server I have a Virtual Port Group setup for each interface that allows all VLAN's (VLAN ID: ALL(4095)).

 

Here's the pertinent switch configuration:

 

SW1

interface FastEthernet0/1

description == VMWare Servers  ** DO NOT MODIFY **

switchport trunk encapsulation dot1q

switchport mode trunk

spanning-tree portfast

!

interface FastEthernet0/24

description ///TRUNK TO SW2///

switchport trunk encapsulation dot1q

switchport mode trunk

 

SW2

interface FastEthernet0/1

description ///TRUNK TO LAB///

switchport trunk encapsulation dot1q

switchport mode trunk

!

interface FastEthernet0/19

description ///VM SERVER///

switchport trunk encapsulation dot1q

switchport mode trunk

spanning-tree portfast

 

If anyone can help me with why my VLAN's can't establish a TCP connection I'd really be grateful, I've been pulling my hair out.

 

Thanks,

 

Steve


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