03-20-2007 05:46 PM - edited 03-05-2019 03:01 PM
does the ip-base image do inter-vlan routing, or do i need the ipservices image?
thanks!
matt
03-20-2007 06:02 PM
ip-base image support for inter-vlan routing
the difference betweeb IP-Base and Ipservices is as follows:-
Base
Entry level package
IP Base, Enterprise Base
Services
Addition of MPLS, NetFlow, VoIP, VoFR, and ATM
SP Services, Enterprise Services
HTH
Imran
03-20-2007 06:30 PM
don't mean to sound stupid, but does that mean it does support inter-vlan routing?
03-20-2007 07:55 PM
I apologize for the wrong information:-
IP routing between VLANs (inter-VLAN routing) for full Layer 3 routing between two or more VLANs, allowing each VLAN to maintain its own autonomous data-link domain are avilable on IP service Images
03-20-2007 09:15 PM
does inter-vlan routing still occur if the vlans only exist on trunk ports?
i have a 3750G-12S (12 fiber gbics). so far i just have ports 1 and 12 being used. port 1 trunks to a 2950 (just vlan 1) and port 12 trunks to another 2950 (vlans 1 and 2). vlan 1 is native on both trunks. i have ip routing enabled but i can't get any traffic to pass from vlan 2 to vlan 1 or vice versa. communication from client workstations to the vlan SVIs is good. any thoughts?
thanks,
Matt
03-20-2007 10:20 PM
Hi
for u r first question if r not going to use trunk links then u have to use a seprate link for each vlan and terminate it at the routing device.
for u r second question,have u enabled ip routing on u r switch and created vlan SVI's.
Configure the gateway on clients on the individual vlans the SVI of the 3750 switch.
Thanks
Mahmood
03-21-2007 02:20 AM
Its really as simple as turning on ip routing . Create your layer 3 SVI's and your layer 2 definition or make a routed port with address on it and make sure the client default gateway on the nic card points to that address on either the routed port or the SVI for that vlan . Base versions support static routing and RIP I believe whereras services supports most routing protocols. check your trunk setup , "show interface trunk and see if it is trunking correctly .
vtp domain
trunked ports
int g0/2
switchport mode dynamic desirable---->on each side of the trunk link
conf t
vlan 2
exit
conf t
interface vlan 2
ip address 192.168.2.254 255.255.255.0
client default gateway pointed to this address
conf t\
interface g0/1
switchport
switchport access vlan 2
switchport host
no shut
end
03-21-2007 06:02 AM
the trunks from the 2950s to the 3750 are working. my clients on the vlan 2 2950 can all ping their gateway svi on the 3750) for vlan 2 (trunk port gig1/0/1). likewise my vlan 1 clients can all ping the vlan 1 svi as well (trunk port gig 1/0/12). i have enabled ip routing. vtp params all match. other than that nothing else is configured on the switch yet. my clients on vlan 1 just cannot seem to ping clients on vlan 2. i can't even do an extended ping specifying an address in vlan 2 with a destination of vlan 1's SVI... when i get a chance i'll post my config for the 3750. any thoughts in the meantime? i'm not sure if this has something to do with the dot1q native vlan or what...
03-21-2007 09:40 AM
default gateway on the clients nic card correct ? You would be able to ping the local SVI without a gateway on the nics but you could not get off the connected network which is what it sounds like .
03-21-2007 02:05 PM
Okay, here's my config on the 3750. As you can see, my vlan SVIs are up and running and I can ping a host on vlan 1. however, when i try to use extended ping to reach that same vlan 1 host from vlan 2's SVI, it times out. my vlan 1 host does have the vlan 1 SVI as its default gateway.
Please help!!
Matt
Switch#
Switch#show run
Building configuration...
Current configuration : 1136 bytes
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Switch
!
!
no aaa new-model
switch 1 provision ws-c3750g-12s
ip subnet-zero
ip routing
!
!
!
!
no file verify auto
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
interface GigabitEthernet1/0/1
switchport trunk encapsulation dot1q
switchport mode trunk
!
!
!other interfaces omitted...
!
!
interface GigabitEthernet1/0/12
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,2
switchport mode trunk
!
interface Vlan1
ip address 20.40.254.254 255.255.0.0
!
interface Vlan2
ip address 10.135.254.254 255.255.0.0
!
ip classless
ip http server
!
!
control-plane
!
!
line con 0
line vty 0 4
no login
line vty 5 15
no login
!
!
end
___________________________________________
Switch#ping 20.40.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 20.40.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/6/9 ms
Switch#ping
Protocol [ip]:
Target IP address: 20.40.1.1
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: 10.135.254.254
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 20.40.1.1, timeout is 2 seconds:
Packet sent with a source address of 10.135.254.254
.....
Success rate is 0 percent (0/5)
Switch#
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: