Cisco Switches :: SGE2010 Inter VLAN Routing
Oct 3, 2011
I've recently installed an SGE2010 switch, which I have set to 'Layer 3' mode.
I have created 2 VLANs using 192.168.10.x and 192.168.20.x (using .50 for the VLAN IP address in each case) - however, I need to be able to allow certain traffic between the VLANs.Alternatively, to get things started - I'm assuming I need to set up ACLs to allow access between VLANs - how would I configure the switch to allow all traffic from one VLAN to the other?
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Sep 12, 2011
[code] I would like to config two IP ranges, one for staff, one for guest wireless access. The dlink wap supports multi vlan SSIDs.Reason I'm doing this is to prevent access on the guest wireless to access the win 2003 server.Will the switch inter vlan route the 192.168.2.1 to 192.168.1.1? How will vlan 2 get DHCP, will dhcp relay need to be set on vlan 2 to 192.168.1.20 ? [code]
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May 17, 2011
Can inter VLAN routing be done on SRW (Cisco 300 series) switches ?
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Jun 6, 2012
I have a connection on IP 192.168.1.21, Subnet 255.255.255.0 - this is on the default VLAN1 on the switch. I need to route this to IP 10.0.3.101, Subnet 255.255.252.0 - which is set up on VLAN2 on the switch. I have set the switch to Layer 3 via console.
how I setup this route? I am use the Browser based interface.
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Mar 17, 2012
configure my new SG300-28P. When I have started the switch, I have specified a new password and enabled telnet in order to setup the switch in Layer 3 mode.
After a restart, the switch took its IP address from a DHCP server. When I try to set a static IP address (192.168.2.1), I receive the following error message: Duplicated IP interface on the same subnet.
The IP address 192.168.2.1 is not used by any device within the network. For information, the message doesn't appear when the switch is in Layer 2 mode.
why I can't change the IP address of default vlan in Layer 3 mode ? All I can do is set the IP address to static or dynamic.
For test purpose, I have added 2 vlans. But I wasn't able to route traffic between vlan. how to configure the switch to route traffic between vlan?
find below details informations about my VLANs.
- Default (VLAN ID 1)
IP Address : 192.168.2.1
Subnet : 255.255.255.0
[Code].....
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Oct 2, 2011
I have recently purchased 2 SG 300 switches, 1 x SG 300 52 & 1 x SG 300 10, and I am hoping getting the following set-up working.To assist I have drawn the following simple network diagram (below) which hopefully makes it a little clearer what I am trying to do:I have 2 companies occupying a single office with the requirement to share printers/devices etc... so basically I am looking to set-up 2 VLANS (say VLAN 10 & VLAN 20) with inter-vlan routing. To add a little complexity the main comms area is located in the basement of the building, this houses the 2 DSL routers and 2 Servers, one for each company. I am proposing putting the SG 300 10 port switch in here and then use the 3 uplinks I have been given to connect back to the SG 300 52 which is in a patch cabinent 2 floors up. I want to use 2 uplinks (in a LAG) for Company A and 1 uplink for Company B. FYI. DHCP is being served out by each respective router.
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Feb 26, 2013
My organization wishes to host a LAN gaming event. The setup I have in mind involves a 24-port switch for connecting all the player computers and having that switch connected to a smaller "core" switch which has the the game server and router connected to it. I'd like to know if I can set things up as follows...
SG200-26 with ports 1-24 on seperate VLANs so they cannot talk to eachother. I'd then like ports 25 and 26 to be an aggregated (for bandwidth and redundancy) trunk port to carry all 24 VLANs plus an additional management VLAN (ex. VLAN 100) that will be used for accessing the switch. I'd like those aggregated trunk ports to connect to an SG300-10 "core" switch which will be connected to the game server and to a router for internet access.
I'd like the ability to have two network connections from the game server to the switch, one on the management VLAN and one on a different VLAN (ex. VLAN 50) that will be accessed by the players (ports 1-24 on the SG200-26). The core switch needs the ability to perform restricted inter-VLAN routing, in that it doesn't allow VLANs 1-24 to talk to eachother but they can talk to the server's VLAN but only through specific service ports (ex. port 12345, 12346). Is this possible?
Furthermore how would I configure the SG300-10 to allow VLANs 1-24 to talk to VLAN 50, but not themselves or VLAN 100. As well, I'll probably have the router on it's own VLAN (ex. VLAN 60) and allow VLANs 1-24 to access it but only through HTTP port 80 for web access.
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Mar 31, 2012
I have six Cisco 300 Series switches in Layer 2 mode. They are all connected using ports in Trunk mode. These Trunks are tagged members of all VLANS.
I have one 300 series in layer 3 mode with IP address assigned to each VLAN.I would like to use one Internet gateway for multiple VLANS. This gateway has numerous IP ports that forward to internal ip addresses on various machines.
All i9nternal clients use their respective VLAN IP as their default gateway.The Layer 3 switch is connected to one of the Layer 2's using a Trunk that is a tagged member of all of the VLANS.
I understand how traffic routes from a client to its respective VLAN gateway. Where I am confused is how it routes from there to the Internet gateway? Internet gateway is 192.168.1.1.VLAN IP's are 192.168.2.1, 192.168.3.1, etc...
Should the Internet Gateway be patched into the Layer 3 switch or one of the Layer 2's using a separate "Internet" VLAN?
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Apr 8, 2013
I used two sf-300 switch and create 4 vlans and intervlan routing is working fine.
Port 1 - 10 -------------> Vlan 1
Port 2 -20----------------> Vlan 2
Port 3 - 30------------------> Vlan 3
Port 4 - 40--------------------> Vlan 4
giga1 -----------------> connected to router (This router used for intervlan routing).
SF-300 Port 1 is connected to Internet Modem. This modem worked as dhcp server also for vlan 1, my problem is that when vlan 1 is not communicate to vlan2,3,4 and 2,3,4 are not communicating.
How i can communicate vlan 1 to 2,3,4 vlan.
how i can connect the modem in switch? Access port or Trunk port ( Presently available in vlan 1 Access port)Any route i need to make? sf-300 or modem or router?
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Mar 25, 2013
Currently, we have a plain network and we are planning to 'upgrade' it a little. We want to implement VLANs to separate wireless clients, workstations + servers and infrastructure devices form each other.As of now, we have no VLANs, and no managed Switches. We only have an RV016 that handles two ISPs and a 3rd party connection service to the office branches ( I belive they're using Frame Relay, but as far as we know, we are not concerned since we cannot touch their devices)
The reason behind the title, pointing towards the famous SGE2000P, is that my workplace is located in Argentina... and we don't have as many choices as some of you guys have ! In fact, I was unsuccessful trying to get a Cisco partner to contact me. We would like to replace the RV016 with a cisco 1941 (and a HWIC switch card).
So, back to business..! Assuming we will be using the SGE2000P switches, I was thinking about setting VLANs using 802.1Q through seven of these switches, along with a 1941 Cisco router. I'm expecting the 1941 to handle load balancing between both ISPs and the 3rd party link. Now, as for Inter VLAN routing, I would like to have gigabit traffic between VLANs.
Is it possible to use one SGE as Layer 3 mode to hande inter VLAN traffic (gigabit speeds) while using the 1941 as a end point device to reach internet (using PAT) ?Would you suggest me to use the 1941 for Inter VLAN routing, despite the 10/100 limitation(*) and use all SGE's in L2 mode? We need two ISPs, a third link for the FR connection, and finally the LAN interface. As far as I know, I'm limited to the gigabit builtin interfaces for WAN purposes, am I right?
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May 15, 2013
we have an SG300 latest 1.3 firmware, we have it acting as our DHCP server, we have a 10.10.1.x range, 10.10.3.x range, and 192.168.24.x range, they are all on seperate VLANs and all can talk to each other which is what we want. However we have someone who wants to use the 192.168.1.x range to add IP cameras to our network using there own switch. I figured I'd just setup our server to do DHCP etc and it would communicate with the 10.10.1.x range of IP addresses no problem. It turns out the SG300s can't do DHCP for that range, so if he has all static address on the 192.168.1.x range how can i setup inter VLAN communication so we can talk to that range?
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May 28, 2012
I have a hybrid kind of network. I want to create create two VLANs on Cisco SGE2010 so that these two VLANs should not talk each other but at the same time they are able to talk Domain controllers, DHCP and other servers which are on other switches.I am able to create two separate VLANs but they stop talking with other servers(DC, DHCP, etc) which are on another switch.
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May 16, 2012
I have 4 SGE2010P switches in L3 stacked mode in my production environment. I am having trouble routing traffice to/from my vlans. I have successfully set this up in a test environment and have compared switch settings, but still having trouble in the production environment.
Main network:
192.168.0.0/24, DG 192.168.0.1
Vlan 1 interface on switch: 192.168.0.253/24
Vlan 22 interface on switch: 192.168.22.1/24
Vlan 23 interface on switch: 192.168.23.1/24
I have assigned port 1/g14 to Vlan 23. I have enabled DHCP Relay and Option 82. I have set DHCP interface to Vlan 23. Static routes auto-genned as shown in image below. My DHCP server is on 192.168.0.16 on Vlan 1. It has a scope for 192.168.23.0/24 to give a DG of 192.168.23.1 (Vlan 23 IP address).I cannot get DHCP to give me an address from the .23 scope. So I tried to hard code an IP address into the client. When I did this, the switch sees the machine just fine, I can ping 192.168.0.253 (Vlan 1 IP address), but cannot ping any other IP on Vlan 1 (192.168.0.0/24)Do I need a static route somewhere that I am missing? I didn't need to on my test network, so I am a bit stumped.
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Jun 26, 2012
1 Cisco switch stack (SGE2010) in L3 mode, 2 Vlans.
Vlan 1 = 192.168.0.253/24, untagged on all ports except 14/15
Vlan 2 = 192.168.22.1/24, untagged on port 14 and 15
SGE2010 default route 0.0.0.0/0 next hop 192.168.0.1 (Checkpoint UTM)
DHCP Relay enabled
DHCP server set to 192.168.0.16
DHCP interface set to Vlan2
[code]....
Expanding the ICMP entry, it appears that the destination is the pc client since it shows a Dell mac address, and the source is the Checkpoint UTM (Sofaware).
I can ping and tracert from the Checkpoint to my static IP on Vlan 2. The same goes for the DHCP server to/from Vlan2, so I am confused as to why the routing is failing. I have tried adding Port Fast to the stack ports, but nothing changes.
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Apr 12, 2012
Just messing around with packet tracer for a little practice. I tried to setup a router on a stick config with 3 switches trunked and PCs on different vlans. Anybody know of any issues that may arise with STP and inter-vlan routing? I set everything up correctly with trunking, addressing, encapsulations, vlans, but did not touch STP. Unable to ping from any PC to any where.
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May 12, 2013
I know very little about switches. This is the first time I've ever touched them. However, I'm the only one in the company who has the slightest knowledge on how to make them work.
4 vlans
vlan 1 - 192.168.32.1 - Existing network with Internet access
vlan 33 - 192.168.33.1
vlan 34 - 192.168.34.1
vlan 35 - 192.168.35.1
From the laptop on vlan 33 I can ping the management interfaces (192.168.x.1) for each of the vlans. However, I cannot ping anything on those networks.
Below is what I have with the config. Right now not much attached to these switches until they are setup.
Code:
config-file-header
poe-switch
[Code].....
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Feb 25, 2013
Say I have a managed switch that supports VLANs. I have two computers and one server connected to the switch (I'll call them PC-1, PC-2, and SRV-1).Without routing, I want both PC-1 and PC-2 to talk to SRV-1 and vice versa, however I don't want PC-1 or PC-2 to talk to each other.I achieve this by making each port a trunk port. I make PC-1 a member of VLAN 2, PC-2 a member of VLAN 3, and SRV-1 a member of VLAN 4. The port that SRV-1 is on I make a tagged member of PC-1 and PC-2 (VLAN 2 and 3 respectively) and make the ports the PCs are on a member of the SRV-1 VLAN (VLAN 4).Everything tests OK (that is, the clients can't talk to each other, however the clients can individually talk to the server)
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Jan 31, 2013
What is inter vlan routing protocol? What are its three modes?
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Oct 21, 2011
i am doing a set-up having the ASA as my Layer 3 device providing inter-vlan communication. ASA with 8.3 firmware. how i can achieve this goal. i am trying to follow some answered topic related to this but its pre 8.3. VLANs created on the same physical have same security level.
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Jul 24, 2007
Does Catalyst 3550 switch support inter vlan routing ?
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Jun 1, 2013
I have a DC topology based on 2 layers, access and aggregation, based on 2 pairs of N5548Ps, both without L3 Daugher Cards. My intent is to use the aggregation N5K pair as L3 inter VLAN layer, so I configured all the VLAN default GWs there. The 2 layers are interconnected via vPC, in a double-sided vPC topology for some N2Ks and some vSwitches. The point is that, despite connecitivity is working fairly ok, for some applications, like file transfer via either FTP or HTTP, between hosts in different VLANs, the performance is too poor. The file transfer starts ok, but after a while it becomes lower and lower. ICMP is working, but I can see some strange random behaviour, like having some packets taking more that 20 ms (sometimes 40 or more), whilst average is 2 ms.
I read through some articles saying that until you don´t have the L3 license (the one coming with L3 Daughter Cards) you can expect some weird behaviour on L3 level. Is that true?. What can I do apart of purchasing L3 Daughter Cards?. Can I enable L3 Basic license at the moment (I don´t need dynamic routing for now).
Here some excerpts of what I´m saying:
PING results:
10000 packets transmitted, 10000 packets received, 0.00% packet loss
round-trip min/avg/max = 0.809/2.496/57.559 ms
System version: 5.0(3)N2(1)
License and features on the N5Ks:
switch# sho license usage
Feature Ins Lic Status Expiry Date Comments
Count
--------------------------------------------------------------------------------
FCOE_NPV_PKG No - Unused -
FM_SERVER_PKG No - Unused -
ENTERPRISE_PKG No - Unused -
[code]....
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Dec 17, 2011
I have been looking into this for a while and I can't seem to figure out why my 2nd vlan is not able to connect properly to the net.
My switch has 12 ports where my devices connects directly, they are all on Vlan 1 and they all work perfectly. on Port 12 I have a dlink router that is connected to a cable modem. the dlink router has an Ip address of 192.168.0.20
I created a second vlan (vlan2) and enabled dhcp relay on it. then I assigned port 9 on the switch to (vlan2)my laptop which is connected to port 9 seems to get an ip address fine and able to ping only some devices on my network (vlan1) and is not able to go out to the internet. I think it has to do with the routes. [code]
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Feb 15, 2013
We have two Cisco 5505 firewalls connecting to two ISP's . The two internal LAN's on the firewalls are 192.168.184.0/24 & 192.168.186.0/24. We also have a Cisco C3560x layer3 switch with vlan interfaces 184.3 & 186.3. We have two DGS-3100 Dlink layer 2 switches connecting our users to the Layer 3. Ip routing is enabled for intervlan communication & I can reach the Switch interfaces & firewall gateways from machines on both on the vlans.We have pbr enabled on the 3560 & users only on the .186 network can get to the internet. The switch is running the ipservices license & the sdm template is "desktop routing" .
Users on the .184 cannot access the internet but we can ping the layer3 interface & the firewall gateway. [code]
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Jan 10, 2012
Can nexus 5010 supports inter v lan routing , as there is no core switch and router available in current network.
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Mar 24, 2013
In 3750 switch,I have configured intervlan routing.I have three vlans Vlan 10,vlan 20,Vlan 30 and I have assigned IP address for that Vlan.In vlan 10,I have connected one systen gigabitethernet 0/1 interface.From my system I am able to ping vlan 10 ip address but I can't able to ping other vlan ip address (vlan 20,vlan 30).Is it possible to up the protocol for all that time.
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Feb 5, 2012
I recently set up a small photography business and am trying to get a Cisco 877 and Cisco SG300-10 switch to talk to each other.
What I want is for the Cisco 877 to handle the internet and the SG300-10 to handle the local network,
I have set up 2 vlans in trunk mode on the switch and want vlan2 to manage local traffic and vlan3 to handle the internet.
I have got the 877 connecting to the internet what I dont have, traffic going to vlan2 on the switch from the 877
Look at the running configs for the switch and the router and tell me how to get the vlan on the router to pass traffic to the switch. In a nutshell I am inserting the internet into the switch but am not sure how to progress. I have the c870-advipservicesk9 image file on the router.
Switch Config
interface gi2
description connection-to-data-vlan
exit
interface gi3
description connection-to-internet-vlan
exit
vlan database (code )
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Mar 28, 2013
I am working for a large campus network. The network has more than 70 VLANS in a Layer 3 Switch(Catalyst 4503). Customer wants to stop intervlan routing between all vlans except 2 vlans. How will i do that? I have also a Firewall (ASA 5520) & a Router (2811) in up of the switch. Besides this, I have run HSRP in Layer 3 Switches for redundancy.how will i stop intervlan routing between VLANS except 2, with ACL or any other process has?
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May 9, 2013
I'm looking to restrict Inter-VLAN routing through L3 switch (cisco 6500) and wanted to know best possible way to do it. I used VACL and achieved success to some extent, but my config is making clients take up to 5-6 mins to authenticate IP address from the DNS (bootps).My VACL config was as follows:
Subnet to restrict is 10.100.15.0 (VLAN 15)
STEP 1: Created extended ACL to allow bootpc/bootps through DNS
ip access-list extended EACL_DNS
permit udp any eq bootps any
permit udp any eq bootpc any
STEP 2: Created standard ACLs to allow only relevant subnet, server VLANs & some IPs from other subnets for printers/scanners etc.
ip access-list standard SACL_VLAN_15
permit 10.100.15.0 0.0.0.255 (the subnet I'm restricting)
permit 10.100.50.0 0.0.0.255 (server VLANs)
permit 10.100.25.45 0.0.0.0 (printer in another VLAN which has to have access in VLAN 15)
STEP 3: Created VLAN access list
vlan access-map VACL_15 10
match ip address EACL_DNS
action forward
vlan access-map VACL_15 20
match ip address SACL_15
action forward
STEP 4: Applying VLAN Access list on VLAN 15 vlan filter VACL_15 vlan-list 15 Though the above works, below is noted:
1. I'm still able to PING 10.100.15.2 (the switch virtual interface) from outside the subnet, which I don't intend to do so. Howeve all cients in the subnet have no connectivity from outside the VLAN 15.
2. As mentioned its taking quiet some time to negotiate with the DNS server at system boot time.
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Feb 16, 2011
you find attached my network architecture with 2 Nexus 7010 on core layer and 2 Nexus 5020 on distribution layer, each one with 1 N2148T fabric extender switch. PC-A1 and PC-A2 are connected to one N2148T, PC-B1 is connected to the other N2148T. Nexus-7000-1 is HSRP Active for all VLANs, Nexus-7000-2 is HSRP standby. PC-A1 and PC-A2 are connected to VLAN A, PC-B1 is connected to VLAN B. PC-A1 and PC-A2 have the same default gateway correspondent to IP HSRP on VLAN A. It happens that PC-A1 is able to ping PC-B1 while PC-A2 is unable to ping PC-B1. If I issue a traceroute from PC-A2 I see Nexus-7000-2’s physical IP address as the first hop even if Nexus-7000-2 is HSRP standby. After the first hop the traceroute is lost. If I shutdown Port-channel 20 on Nexus-5000-2, PC-A2 starts to ping PC-B1.I can’t understand what’s wrong in this architecture.
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Apr 1, 2012
In my home setup I have an PFsense firewall wich is doing all the routing right now, but right now my net speed is maxing out about 500mbit, i my think it's the pfsense hardware, but its an 1500Mhz C7 VIA with 2Gb ram, I just bought two new switchs, HP-1910-24g and a HP 5500-24G they can do some layer 3 routing, will my speed get a bumb up when the switch is doing some of the vlan routing.
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Oct 30, 2012
I want to do the inter vlan routing packet tracer file url...configuration of MLS are as bellow can anyone tell me why vlan on switch0 can not ping vlan on switch1. [code]
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Jan 11, 2013
I have set up a 2811 with seperate VLANs for phones, and another for computers/printers. Fa0/0 is trunked to a 3560 switch, which has all end devices plugged in. I have enabled the IP Routing commands on both devices, and from advice turned off proxy-arp on the VLANs on the router (unsure if this is causing the issue). The setup is as follows
Computer VLAN = 192.168.20.0
Phone VLAN = 192.168.50.0
Both on the same subnet, along with a router loopback address in the same subnet, at 192.168.10.1.I am having an issue understanding why, but if I try to ping a phone from a PC it times out. Or if I try to type the phone's IP into an internet browser to get the phone's GUI on screen, it fails. This should not be happening as IP routing has been enabled on both, and everything is in the same subnet, correct? PC's can ping other PC's and network printing works fine. Phones register and operate fine, but the two VLAN's will not interoute.Furthermore if I try and ping the router's loopback from the switch, it fails. But the trunk is up and operational because DHCP and devices work within their own VLAN. If I try to ping end devices from the switch, it returns 100%. There seems to be an issue with the router looping the different networks together.
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Jul 8, 2012
Ive been readin all over the internet (including this site) trying to figure out if the asa can handle intervlan routing. Im not sure what I am missing on my config to get this to work. Ive read that it can work and Ive read that it cant work. How to get this to work on my asa 5505.
Here is my setup
Cable Modem ---> ASA (eth0/0)
(eth0/2) -->unmanaged switch for LAN connectivity
(eth0/3) --> Access point for wireless LAN connectivty
My config is attached
What I would like to do is be able to communicate between vlan3(LAN) and vlan4(Wireless LAN)
Whats strange is I can RDP between the two vlans but I cant ping or anything else.
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