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Terminal sessions dropping on new Vlan / subnet

Posted on 2006-06-14
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Last Modified: 2013-11-21
I created a second vlan and added a new subnet for this vlan.  Users on this new vlan2 connect via terminal services to a server on the vlan1 and there connection keeps dropping.  

I'm just wondering if there is some sort of setting i am missing or something that could be causing this problem?

What type of info can i provide to help?

Thanks in advance,
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Question by:lgropper
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Expert Comment

by:Scotty_cisco
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if you could post a show run of just the 2 vlans and what is doing the routing ... type of equipment that will help

Thanks
scott
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Author Comment

by:lgropper
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here is the "show run" for the vlan's

!
version 12.2
service config
no service pad
service timestamps debug uptime
service timestamps log datetime
no service password-encryption
service sequence-numbers
!
hostname CMT3560_Server_Room
!
enable secret 5 $1$D3rC$mYqVJa9nbjoOi3hKvU58r.
!
clock timezone UTC -5
clock summer-time UTC recurring
ip subnet-zero
ip routing
!
ip name-server 192.168.100.5
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
 speed 1000
!
interface GigabitEthernet0/3
!
interface GigabitEthernet0/4
!
interface GigabitEthernet0/5
!
interface GigabitEthernet0/6
!
interface GigabitEthernet0/7
!
interface GigabitEthernet0/8
!
interface GigabitEthernet0/9
!
interface GigabitEthernet0/10
!
interface GigabitEthernet0/11
!
interface GigabitEthernet0/12
!
interface GigabitEthernet0/13
!
interface GigabitEthernet0/14
!
interface GigabitEthernet0/15
!
interface GigabitEthernet0/16
!
interface GigabitEthernet0/17
!
interface GigabitEthernet0/18
!
interface GigabitEthernet0/19
!
interface GigabitEthernet0/20
!
interface GigabitEthernet0/21
!
interface GigabitEthernet0/22
!
interface GigabitEthernet0/23
!
interface GigabitEthernet0/24
!
interface GigabitEthernet0/25
!
interface GigabitEthernet0/26
!
interface GigabitEthernet0/27
!
interface GigabitEthernet0/28
!
interface GigabitEthernet0/29
!
interface GigabitEthernet0/30
!
interface GigabitEthernet0/31
!
interface GigabitEthernet0/32
 switchport access vlan 2
 switchport mode access
!
interface GigabitEthernet0/33
!
interface GigabitEthernet0/34
!
interface GigabitEthernet0/35
!
interface GigabitEthernet0/36
 switchport access vlan 2
 switchport mode access
!
interface GigabitEthernet0/37
!
interface GigabitEthernet0/38
!
interface GigabitEthernet0/39
!
interface GigabitEthernet0/40
!
interface GigabitEthernet0/41
!
interface GigabitEthernet0/42
 switchport access vlan 2
!
interface GigabitEthernet0/43
!
interface GigabitEthernet0/44
 switchport access vlan 2
!
interface GigabitEthernet0/45
!
interface GigabitEthernet0/46
!
interface GigabitEthernet0/47
!
interface GigabitEthernet0/48
 switchport access vlan 2
 switchport mode access
!
interface GigabitEthernet0/49
!
interface GigabitEthernet0/50
!
interface GigabitEthernet0/51
!
interface GigabitEthernet0/52
!
interface Vlan1
 ip address 192.168.100.201 255.255.255.0
!
interface Vlan2
 ip address 192.168.150.201 255.255.255.0
 ip helper-address 192.168.100.5
!
ip default-gateway 192.168.100.71
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.100.71


Gateway on Vlan 1 is a nortel contivity at 192.168.100.71 which has routes for the second subnet.  All dhcp for vlan 1 has this as their gateway.  The same dhcp server hosts for vlan2 which supplies a gateway of 192.168.200.201 (cisco switch 3560).

I believe i could make the switch my main gateway for everything and then the swithc will have the contivity as its last resort.  would this actually be causing an issue with terminl services?

Thanks,
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Expert Comment

by:prashsax
Comment Utility
Is their some kind of proxy or natting happening between client and the Terminal Server.

This could be the issue with session timeouts.

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Expert Comment

by:Scotty_cisco
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The nortel is a firewall it could be timing out the sessions for inactivity ... or a number of other reasons you may want to make the switch your L3 routing gateway for both segments and see if the issue goes away.

Thanks
Scott
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Author Comment

by:lgropper
Comment Utility
i have changed the gateway to the switch on the terminal server.  I will let you know how it goes.

thank you!
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LVL 12

Expert Comment

by:Scotty_cisco
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how has this been working?  Did moving the default gateway help?

Thanks
Scott
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Author Comment

by:lgropper
Comment Utility
I changed the gateway and it still seemed to be happening... We have had problems with the NIC on the server so we have replaced that as well. I'll keep you posted.

Chad
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Expert Comment

by:prashsax
Comment Utility
Could NIC be going into power save mode after sometime of inactivity.
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Author Comment

by:lgropper
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There's no way there is inactivity on this server... at any given time we have about 50 users on, and it seems only users in the new subnet are being affected.  There has to be some form of timeout that dropping the connection.  Scotty's idea with the gateway makes sense, just have to play it out a bit.
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Accepted Solution

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Scotty_cisco earned 250 total points
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One of the things I have experianced a lot of is the fact that sessions close for different reasons... I can be SSH'ed into a system and it will work great as long as there is some traffic crossing it but if it goes Idle for a period of time then it closes the connection just depends on the application and the network gear inbetween the 2 hosts.

Thanks
scott
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