Switch vs. router

I've been usng an Airport Express to conect to the internet for my one computer. Now I have a second computer that does not have an airpot card in it. I bought a workgroup switch thinking that I could connect both computers. I connected one computer directly to the switch and the second one through the airport express. I'm having problems connecting both computers. Should I have gotten a router instead?

I think the better solution might be to get a (wireless) router, and put that as the first device inside your DSL/Cable. Then cable or wifi and leave Express as an access point, and cable from router to your non-wifi mac. (the manual will help you get the configuration right).
You'll need to configure your router to get IP address from upstream, and to provide IP's to your little workgroup.
A router will not be much more expensive. And the switch you can hang on to for future expansion, or sell it to your cousin.

Similar Messages

Branch office setup with L3 switch and router with IOS security

Hello,
I am in the process of putting together a small branch office network and I am in need of some design advise. The network will support about 10-15 workstations/phones, 3-4 printers, and 4-5 servers. In addition we will eventually have up to 25-30 remote users connecting to the servers via remote access VPN, and there will also be 2-3 site-to-site IPSec tunnels to reach other branches.
I have a 2911 (security bundle) router and 3560 IP Base L3 switch to work with. I have attached a basic diagram of my topology. My initial design plan for the network was to setup separate VLANs for workstation, phone, printer, and server traffic. The 3560 would then be setup with SVIs to perform routing between VLANs. The port between the router and switch would be setup as a routed port, and static routes would be applied on the switch and router as necessary. The thought behind this was that I'd be utilizing the switch backplane for VLAN routing instead instead of doing router-on-a-stick.
Since there is no firewall between the switch and router my plan was to setup IOS firewalling on the router. From what I am reading ZBF is my best option for this. What I was hoping for was a way to set custom policies for each VLAN, but it seems that zones are applied per interface. Since the interface between the router and switch is a routed interface, not a trunk/subinterface(s), it doesn't seem like there would be a way for me to use ZBF to control traffic on different VLANs. From what I am gathering I would have to group all of my internal network into one zone, or I would have to scrap L3 switching all together and do router-on-a-stick if I want to be able to set separate policies for each VLAN. Am I correct in my thinking here?
I guess what I am getting at is that I really don't want to do router-on-a-stick if I have a nice switch backplane to do all of the internal routing. At the same time I obviously need some kind of firewalling done on the router, and since different VLANs have different security requirements the firewalling needs to be fairly granular.
If I am indeed correct in the above thinking what would be the best solution for my scenario? That is, how can I setup this network so that I am utilizing the switch to do L3 routing while also leveraging the firewall capabilities of IOS security?
Any input would be appreciated.
Thanks,
Austin

Thanks for the input.
1. I agree, since I have only three to four printers, they need not be in a separate VLAN. I simply was compartmentalizing VLANs by function when I initially came up with the design.
2. Here's a little more info on the phone situation. The phones are VoIP. The IP PBX is on premise, but they are currently on a completely separate ISP/network. The goal in the future is to converge the data and voice networks and setup PBR/route maps to route voice traffic out the voice ISP and data traffic out the other ISP. This leads up to #3.
3. The reason a router was purchased over a firewall was that ASA's cannot handle routing and dual ISPs very well. PBR is not supported at all on an ASA, and dual ISPs can only be setup in an active/standby state. Also, an ASA Sec+ does not have near the VPN capabilities that the 2911 security does. The ASA Sec+ would support only 25 concurrent IPSec connections while the 2911 security is capable of doing an upwards of 200 IPSec connections.
Your point about moving the SVI's to a firewall to perform filtering between VLANs makes sense, however, wouldn't this be the same thing as creating subinterfaces on a router? In both cases you are moving routing from the switch backplane to the firewall/routing device, which is what I am trying to avoid.

Which Switch and Router to choose?

I am interested in purchasing a Cisco Switch and Router, or possible a Cisco Switch Router.
However, I am not sure of what model to go with.
Currently, we have a network with about 200 Workstations and 30 Servers for our Corporation Infrastructure.
Also, for our lab, we have about 50 Linux Based Servers, and 30 Solaris Based Servers, that are part of our Network. We are a Research and Development Company, and we have had issues with the Lab machines bringing down our network, as well as our corporate network adversely affecting the lab machines. What we would like to do is segment the network so that the different areas will be isolated. However, we also would like to have a lot of control over the traffic that will be able to cross from our network into the lab so that users will still be able to run their tests.
Security is also an issue, and it would be great to have more control, and a better view of what kind of traffic is running through our network.
Currently, we have about 8 Gigabyte Switches which are unmanaged (Linksys and NetGear). Our idea was to get a 1 or 2 Cisco Switch Routers, and then split them up into VLANS and cascade our current switches so that we can still make use of them. The other ideas was to just get a Cisco Switch and use our CheckPoint Router/Firewall to do the routing.
Can you give me any advice as to what model of Cisco Product you would recommend?
Is it better to go with a Switch Router, or simply get a separate Switch and Router?
Please note that all of our Machines have 10/100/1000 NICs, so the device will need to be Gigabyte.
Thanks you so much!

You have two choices. Either to use a chassis based solution or to use stacable switches such as a 3750. Are all the cat 5(or 5e,6) runs coming into one centralized location ? Or are there separate wiring closets that you plan to put. If then we need to put separate switches at those locations and run fiber back to the central location which has a chassis based or stackable switch.
If using a chassis based solution, you can get a 4506 (4507 for redundancy, with a redundant supervisor engine). Supervisor engine is nothing but the CPU of the switch. 4506 is a 6 slot modular switch with 2 power supplies for redundancy. You cannot add two Supervisor engines on a 4506 (4507 can).
Slot 1 is always for supervisor engine, the remaining 5 slots you can fill using 48 port 10/100/1000 modules.(48 * 5 = 240). So your maximum port density is 240 ports on a 4506. (Note that there are 4507, 4510 which are similar models with more slots)
If using 3750, you can stack upto 9 switches in a stack using stacking cables on the back side of the switch. Each switch will have 48 ports (10/100/1000) and you can stack 5 switches to get 240 ports.
For the firewall I would recommend using a PIX 515E, (Why go for Checkpoint firewall when you can use all Cisco). For routing between the vlans, the switches that I recommended above are all Layer 3 switches. They will route between the different vlans. You can also configure ACLs to restrict traffic between multiple vlans.
HTH

My LMS 3.2 won't detect Switch 29xx , router 39xx and 7200

Hi ,
my LMS 3.2 won't detect my new Switchs 29xx , router 39XX and my 7200 router !!!!
Thanks

First thing you would want to do is upgrade to the latest device package for Common Services (MDF). That can be done under CS > Software Center > Device Update, check CiscoWorks Common Services and Check For Updates.
You can also use CLI commands (my preference) for this:
PSUCli.bat -p cmf -d -dst c:\psu_download -all (will download common services packages to c:\psu_download\cmf)
PSUCli.bat -p cmf -install -src c:\psu_download\cmf -all (will install the packages)
Use the supported device table below to confirm if your devices are or aren't supported:
www.cisco.com/en/US/docs/net_mgmt/ciscoworks_lan_management_solution/3.2/device_support/table/lms32sdt.html

Layer3 switch and router

I have a network that I need to connect to the internet. All internal vlans point to a couple of layer 3 switches. On the layer 3 switch I connected a router for internet access.
On the inside interface of the router I gave it an ip address of 10.1.0.1 - this is the ip address I want all my lan traffic to route to for internet access.
1. Do I have to give the layer 3 switch interface port a static ip address or just connect it with a cable (the other side is the internal interface of the router 10.1.0.1)?
2. On the layer 3 switch what command do I use to forward all lan traffic to this router, is it "ip route 0.0.0.0. 0.0.0.0 10.1.0.1?
3. Do I use that above command on both of my layer 3 switches or just the one connected directly to the router?
Thanks.

I cant even ping the router, not sure what else to do. To make it even simpler I removed the layer 3 switch connected to the router above and now have only one layer 3 switch (10.1.0.6) and still cant ping the router. All internal hosts can communicate with each other, just need to get all the vlans routed to the internet.
Below I pasted the show run from the layer 3 switch connected to the router and the show ip route and show ip int brief from the router.
Layer 3 switch:
hostname Switch
ip routing
spanning-tree mode pvst
interface FastEthernet0/1
switchport mode access
interface FastEthernet0/24
switchport mode access
interface GigabitEthernet0/1
switchport access vlan 100
interface GigabitEthernet0/2
switchport access vlan 100
switchport trunk encapsulation dot1q
switchport mode trunk
interface Vlan1
no ip address
shutdown
interface Vlan10
description SERVERS_VLAN
ip address 10.1.10.1 255.255.255.0
interface Vlan20
description SALES_VLAN
ip address 10.1.20.1 255.255.255.0
interface Vlan30
description ACCOUNTING_VLAN
ip address 10.1.30.1 255.255.255.0
interface Vlan40
description IT_VLAN
ip address 10.1.40.1 255.255.255.0
interface Vlan50
description VOICE_VLAN
ip address 10.1.50.1 255.255.255.0
interface Vlan100
ip address 10.1.0.6 255.255.255.0
ip classless
ip route 0.0.0.0 0.0.0.0 10.1.0.1
line con 0
line aux 0
line vty 0 4
login
end
ROUTER:
interface GigabitEthernet0/0
ip address 10.1.0.1 255.255.255.0
duplex auto
speed auto
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
shutdown
interface FastEthernet0/0/0
switchport mode access
shutdown
interface FastEthernet0/0/1
switchport mode access
shutdown
interface FastEthernet0/0/2
switchport mode access
shutdown
interface FastEthernet0/0/3
switchport mode access
shutdown
interface Serial0/1/0
no ip address
shutdown
interface Serial0/1/1
no ip address
show IP route
Router#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
       i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
       * - candidate default, U - per-user static route, o - ODR
       P - periodic downloaded static route
Gateway of last resort is not set
     10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C       10.1.0.0/24 is directly connected, GigabitEthernet0/0
L       10.1.0.1/32 is directly connected, GigabitEthernet0/0
Show ip int brief
Router#show ip int brief
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet0/0     10.1.0.1        YES manual up                    up
GigabitEthernet0/1     unassigned      YES unset administratively down down
FastEthernet0/0/0      unassigned      YES unset administratively down down
FastEthernet0/0/1      unassigned      YES unset administratively down down
FastEthernet0/0/2      unassigned      YES unset administratively down down
FastEthernet0/0/3      unassigned      YES unset administratively down down
Serial0/1/0            unassigned      YES unset administratively down down
Serial0/1/1            unassigned      YES unset administratively down down
Vlan1                  unassigned      YES unset administratively down down

What is difference between content switching, content routing...

Hi friends,
I want to know differences between content switching, content routing...
I want to know too, if a Content Engine 566 can caching FTP, HTTPS, Video and so on....
Regards and thank you.
Raúl.

A content engine can cache files transfered via ftp but not https [as the content is encrypted].
It can cache whatever file, including video, audio, ...
Content routing, content switching are just names.
They refer to how the traffic will be intercepted and forwarded to the content engine.
You could simply use a proxy solution and have your users setup their browser to use the content engine as a proxy, or you could transparently intercept http/ftp traffic via a router running wccp, or you could use a Layer7 device like a CSS to intercept the traffic and redirect to the content engine.
Regards,
Gilles.

TS1589 I have to reboot my BTinfinity router to enable me to link my ipod to Airport express. When it is connected it works perfectly, but it is getting a bind to have to keep switching the router power off. Any one help???

I have to reboot my BTinfinity router to enable me to link my ipod or my iphone to Airport express. When it is connected it works perfectly, I use it to play music through my BOSE soundwave, but it is getting a bind to have to keep switching the router power off. Any one help???
Ipod touch: 4th generation Upto date software
Airport Express: Latest model
Iphone 5: Upto date software

This can sometimes be the result of a faulty/damaaged USB sync cable. Do you have another cable you could test it out with?
B-rock

Using another switch or router with TC???

Do you use another ethernet switch or router with an integrated ethernet switch with your TC??? How do you have things setup?
BTW: I'm running out of physical ethernet ports and I need to use Vonage...
R

If you're out of LAN ports then yes, you need a switch. Plug it into your TC and plug other stuff into the switch. Simple.
When buying a switch, remember one of its ports will be occupied by the connection to the TC. For example, if you're using all three TC LAN ports, buying a five port switch results in a net gain of only three ports: one of them is needed for the uplink, and the one you had to unplug from the TC must now be connected to the switch... three remain.
Fortunately they're not expensive.

Etherchannel trunking between 2970 switch & 2851 router

Hi.
I'm planning to do router on a stick with my Catalyst 2970 and my Cisco 2851 router. I got it working to do router on a stick with one physical link to do interVLAN routing, but when I try to configure it using an etherchannel trunk between them, I can't get it working. Please help. Here's my running config for the switch and router:
2970 Switch:
<removed irrelevant info>
interface Port-channel1
switchport trunk encapsulation dot1q
switchport trunk native vlan 10
switchport mode trunk
duplex full
interface GigabitEthernet0/23
switchport trunk encapsulation dot1q
switchport trunk native vlan 10
switchport mode trunk
duplex full
channel-group 1 mode on
interface GigabitEthernet0/24
switchport trunk encapsulation dot1q
switchport trunk native vlan 10
switchport mode trunk
duplex full
channel-group 1 mode on
interface Vlan1
no ip address
no ip route-cache
interface Vlan10
ip address 172.16.1.18 255.255.255.240
no ip route-cache
ip default-gateway 172.16.1.17
2851 Router:
interface Port-channel1
no ip address
duplex full
speed 1000
interface Port-channel1.10
encapsulation dot1Q 10 native
ip address 172.16.1.17 255.255.255.240
interface Port-channel1.20
encapsulation dot1Q 20
ip address 172.16.2.1 255.255.255.240
interface Port-channel1.30
encapsulation dot1Q 30
ip address 172.16.3.1 255.255.255.240
interface GigabitEthernet0/0
no ip address
channel-group 1
interface GigabitEthernet0/1
no ip address
channel-group 1
Thank you.

The following is a similar example , try some debuging to find encapsulation errors.
http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_example09186a00800ef797.shtml
Also see whether you are meeting the following requirements
http://www.cisco.com/en/US/tech/tk389/tk213/technologies_tech_note09186a0080094646.shtml

Can IPS deploy traffic rate limiting policy to switch or router?

Hello,
I have a quick question: can IPS deploy traffic rate limiting policy to Cisco switch or router?
As we know, IPS sensor can throttle suspicious traffic instead of blocking them, not sure if IPS can send the throttle policy to cisco swtich or router.
Thanks,
-Alejin

Please find the following on what the IPS can do in terms of rate limiting (it also includes which signature and which routers, what to configure and what not to configure, etc):
http://www.cisco.com/en/US/docs/security/ips/7.0/configuration/guide/idm/idm_blocking.html#wp2005501
The above is on IPS version 7.x.
Hope that helps.

How to configure switch to route ISP ethernet handoff? (L3 or VLAN routing)

I have an ISP providing a redundant internet circuit through Ethernet handoff, and I need to route their border network to my firewall which will hold the public IP address block. The handoffs will go into 2 3750 switches stacked, which in turn will be uplinked to an ASA active/standby pair. How do I configure the switches to handle the traffic?  The equipment isn't in place yet so I can't test the configuration; just trying to validate the plan. I'm not sure of the pros/cons of using L3 switchport vs VLAN routing.
Example, ISP provides 2 drops, 10.10.10.1/29 and 10.10.10.2/29, and a virtual gateway to route traffic out to the internet, 10.10.10.3/29 (FYI - in reality these are public IP's, just using privates for example).  Assume the public block is 192.168.0.0/24. I need to configure the 3750 switches with interfaces of 10.10.10.4/29 and 192.168.0.1/24. The ASA firewall outside interface will be 192.168.0.2/24.
The ISP routes everything destined for 192.168.0.0/24 to 10.10.10.4/29. I need to route all outbound internet traffic to 10.10.10.3/29.
So the 3750 would have a layer 3 port-channel with IP 10.10.10.4/29 to uplink to the ISP drops. It will also have another layer 3 port-channel with IP 192.168.0.1 (or should I use a VLAN interface for both or either?). The ASA outside interface will be 192.168.0.2. On the ASA my default route out is 0.0.0.0 0.0.0.0 192.168.0.1. The default route on the 3750 stack will be 0.0.0.0 0.0.0.0 10.10.10.3.
Thoughts?
                                                                             [ISP-BORDER1-10.10.10.1]
[INTERNET]----[ISP-BORDER-VIP-10.10.10.3]                                                 [3750-L3-PORT-10.10.10.4/192.168.0.1]----------[ASA-192.168.0.2]
                                                                            [ISP-BORDER2-10.10.10.2]

Hi,
Any update on above queries.
Need Solution.

Set up of Switch and router

I just got a router and switch. I am studying for the ccna. How do I initially connect to them with a pc? I have the Console cable.

As the other posters have noted, if using a Windows PC, Hyperterminal can be used to access the network device's "console".
You will need to insure Hyperterminal is using the correct comm port (the one you've connected the cable to), and insure the comm parameters match your Cisco network device's settings. Parmeters 9600/8/none/1/none will likely work (NB: these might be set if you "press" the Restore Defaults button [as also noted by Ohassairi].)

Connecting Switch to Router

Greetings,
I have a 3750 switch that has several VLANs defined on it. I also have an 1841 router that has the same VLANs defined (they are numbered the same).
At the moment they are connected and I am able to browse from a host connected to the default VLAN. I would like to connect the switch to the router and test the VLAN functionality.
Where do I start? On the switch or on the router
When I tried to complete the LAN wizard on the router and assign the default VLAN to the routers Fa0/0/0 port, it caused the switch Gi port to err-disable due to bpduguard.
TIA
Charlie

Yes I am connecting the switch and the router via Gi1/0/1 on the switch and Fa0/0/0 on the router. The Fa0/0/0 is one of 4 ports on the router switchcard HWIC.
Is there a configuration document for this type of setup?
Also, the switch did shut down the port with a reason of BDPU... so it seems likely that the switch shut down the port because the router was sending bpdu's. What is the risk in shutting down bpduguard? Do I need to shut it down on the router switchcard as well as on the switch?

Select Switch Executive Route based on Socket Index

Hi,
I have a sequence set up in TestStand which simultaneously tests up to 4 UUT's. In order to run a current measurments, I need to be able to switch each device through the DMM. I have the routes properly configured in Swith Executive, and everything runs fine when I switch manually using the Test Panel feature. What I need to do now though, is choose which device is routed to the DMM based on its test socket number.
So, for the "Measure Current" test step on "Test Socket 0", I go to the Properties>Switching window and just select "Connect_UUT0" route group. This works fine for a single test socket, but how can I dynamically switch route when I have more than one UUT?
I'm aware of the "RunState.TestSockets.MyIndex" variable, but I can't seem to select a route based on this. ie: In "Routes to Connect" I typed "Str(Connect_UUT)+Str(RunState.TestSockets.MyIndex)" after I read a similar solution on this forum, but I just get an error.
I'd really appresciate some help on this,
Thanks,
Kevin
Solved!
Go to Solution.

Hey Kevin,
You shouldn't need to do Str(Connect_UUT). You're likely getting the error because it's trying to interpret Connect_UUT as a variable instead of a string. Try this instead:
"Connect_UUT"+Str(RunState.TestSocks.MyIndex)
I think that will work, but let us know if you run into any more trouble!
Daniel E.
TestStand Product Support Engineer
National Instruments

Multiple switch vlan routing, almost there!

Hello,
I'm hoping this is a blatantly obvious issue, but we all know how late night thinking tends to be fairly foggy!
Anyway, I have 3 3400cl HP switches and a 2610 Poe switch. One of the 3400's is acting as the core, with the other 3 switches lacp trunked into it.
Currently trying to get vlan 40 traffic properly routed for internet access. This is a leap into vlan configs, so the existing domain traffic is still on vlan 1 (yes I know, not ideal).
The config so far successfully allows clients on vlan 40 to receive DHCP addresses via the ip helper, but no access to internet sites. I can resolve a dns address just can't see any hopes beyond the vlan 40 IP.
Two other points if anyone wishes to comment:
The HP 2610 is slotted to be replaced with a Cisco 3750 Poe switch. Any comments and making cisco and HP play nicely together?
And second, if anyone wants to suggest best practice words of wisdom for migrating existing services into a more detailed vlan setup, please type away!
Here is the config: The 'lower' named switch will mirror the 3rd 3400 so I didn't see the need to include that one.
hostname "NHB-Core"
interface 19
   no lacp
exit
interface 20
   no lacp
exit
interface 21
   no lacp
exit
interface 22
   no lacp
exit
interface 23
   no lacp
exit
interface 24
   no lacp
exit
trunk 19-20 Trk1 LACP
trunk 21-22 Trk2 LACP
trunk 23-24 Trk3 LACP
ip routing
snmp-server community "public" Unrestricted
vlan 1
   name "DEFAULT_VLAN"
   untagged 1-18,Trk1-Trk3
   ip address 10.10.4.59 255.255.255.0
   exit
vlan 40
   name "VLAN40"
   ip address 10.10.10.1 255.255.255.0
   ip helper-address 10.10.4.29
   tagged Trk1-Trk3
   exit
ip route 0.0.0.0 0.0.0.0 10.10.4.98
spanning-tree Trk1 priority 4
spanning-tree Trk2 priority 4
spanning-tree Trk3 priority 4
hostname "NHB-Poe"
trunk 25-26 Trk1 LACP
ip default-gateway 10.10.4.59
snmp-server community "public" Unrestricted
vlan 1
   name "DEFAULT_VLAN"
   untagged 1,3-24,27-28,Trk1
   ip address 10.10.4.62 255.255.255.0
   no untagged 2
   exit
vlan 40
   name "VLAN40"
   untagged 2
   tagged Trk1
   exit
spanning-tree Trk1 priority 4
hostname "NHB-lower"
interface 23
   no lacp
exit
interface 24
   no lacp
exit
trunk 23-24 Trk1 LACP
ip default-gateway 10.10.4.59
snmp-server community "public" Unrestricted
vlan 1
   name "DEFAULT_VLAN"
   untagged 1-22,Trk1
   ip address dhcp-bootp
   exit
vlan 40
   name "VLAN40"
   tagged Trk1
   exit
spanning-tree Trk1 priority 4

I am sorry, but to get your issue more exposure, I would suggest posting it in the commercial forums, since this is a commercial product. You can click here for the link.
TwoPointOh
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

What do I connect 2 switches with router

Hi, Everyone. I have this trouble and would like to get help.
Here is my situation. I have one Verizon router in basement. I run the ethernet cable from router to one room in first floor. I have one Linksys switch in this room. This is switch 1. I have 2 computers connect to this switch, all working well. I then, run the cable from this room to second floor. If I directly connect this cable to computer in second floor, it works well. But, I have more computers in second floor. I bought another Linksys switch, switch 2. Here is my trouble, if I connect the cable from switch 1 to switch 2, and connect computer to switch 2, I have trouble.
All lights are on and stable, and seems all correct. But, from computer, I cannot see any connectivity, even I set up the IP address manually, it will not connect.
I called Linksys supporting center. First, I was told that I should put cable in Uplink in Switch 1, and port 1 in switch 2. I did so. Does not work. Then, I was told that I should put cable in port 1 in switch 1, and port 1 in switch 2. I did so. Does not work.
I am quite confused. In concept, I think, my configuration should work well. But, why not? Please advise on 1) If this configuration should work? 2) If should work, how can I do?
Thanks a lot for everyone.

chuyux wrote:
Thanks for your inputs. Here is the exact configuration.
Router: Verizon Action Router. It has 4 numbered ports.
I run straight cable from router to room 1 in that I have Switch 1.
Switch 1 is EZXS88W (version 3.3). I put cable from router into port 7. This switch works very well. NO problem at all. All ports are working well. So far, I connect 3 devices into this switch. None has problem.
I then run straight cable from switch 1 to another room. There I have swtich 2. It is EZXS55W (version 4.1). I put the cable into port 1 of switch 2 (actually, I tried all ports). Then it does not work. No connectivity at all. I call the cable from room 1 to room 2 as Cable A (it is a straight cable). If I put cable A directly into computer, it works well. But, if I put into switch 2 (any ports) then connect computer to switch 2, I have no connection.
This is exactly my situation. What is the problem? What is the solution?
EZXS55W afaik is "smart port" so you can put that into any of the numbered ports ( I prefer port 1), have you tried switching these two "switches" to see if the autosensing feature of the 2nd switch is not broken?
Also, what IP address are you getting on the computer you connected on the line going to the 2nd switch? It may be on static ip, but if not... can you try connecting that line back then set a static IP on the pc to check if it at least pings the first set of computers and router??
"You tried your best and you failed miserably! "

Switch vs. router

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