Setting Up A Dedicated Firewall Machine On A Switch?
Jan 29, 2012
this company uses Vyatta firewalls, which are dedicated boxes. So I was sent home with a Dell PowerConnect 5448 (a 48 port switch) with the project of getting a similar setup going with the computers i have at home. I have the switch set up, everything's on VLAN1, management IP is 192.168.2. 255.255.255.0, Default Gateway is 192.18.2.254, and the switch is properly sharing the my internet connection between three computers. That part was easy. So now, one of them is going to be either reformatted and set up with Vyatta, or I'm going to virtualize it. Either way, I need to route all the traffic through that firewall box before it goes to anything else on the switch so I can have a functional firewall.
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Aug 2, 2011
I have a strange error on my home network that I cannot find a solution to.I have an Huawei SmartAX MT882 from TalkTalk acting as a modem connected to a D-Link DSL-G624T acting as a router/switch. Connected to the D-Link I have a Windows 7 Pro machine (64-bit, SP1) and an XP (home i think) machine (sp 2 i think).The SmartAX modem is set up to perform DHCP and DNS relaying and the D-Link has DHCP turned off and DNS relay turned off.The Win7 machine can access the network, get an IP address and access the internet without problems, regardless as to the status of the XP machine.The XP machine can access the network, get an IP address and access the internet with no problems ONLY of the win7 is powered up. When the win7 machine is off, the XP machine seems to drop about 25% of the ping packets between it and the D-Link router and has no internet access (because of this i assume). [code]
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Aug 23, 2011
setting up an ASA 5505 to be used as a firewall between a BT internet router(BTNet service) and a Cisco 3560 Lan switch. BT have presented me with a cisco 3800 series router with the following details:
Network Address Network Mask BTnet NTE Router LAN Address
There are 2 Gigethernet ports on the back of the router port Ge0/0 is connected to the BT NTE and the status light is flashing green. Int ge0/1 is connected into port int e0/1 of the ASA but i am unable to get any connection.
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Feb 28, 2013
i just bought a Netgear WNDR4000 router due to troubles with my current modem/router combo (D-Link DSL2730-B). The router doesnt have in built modem functionality obviously so I need to set up the modem/router as a dedicated modem.Also should I use the current modem/router as the dedicated modem or an older model i own (I think its a DSL 502T)? Because the current one often drops the internet connection. Don't know if its a problem with the modem functionality or something else. Will the older one serve better since i didn't have any problems with that one or will it be outdated? I only upgraded due it not having wireless capabilities. Otherwise it's fine.Or will I be even better off buying a dedicated modem? I really don't want to spend more money but if this is a far better alternative I guess i will.
EDIT: Ok so found out that I have to put the modem/router in bridge mode in order for this to be possible. However, looking up how to do this lead me to a dead end because i need to fill in some fields that i have no idea how to interpret.
VPI:
VCI: These 2 already came with presets. Should I just leave them?
Select DSL Link Type (EoA is for PPPoE, IPoE, and Bridge): Choices of EoA PPPoA and IPoA
Encapsulation Mode: Choices of LLC/SNAP-BRIDGING and VC/MUX
Service Category: UBR without PCR, UBR with PCR, CBR, Non Realtime VBR, Realtime VBR
[code]...
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Feb 22, 2013
I'm considering adding a dedicated Firewall to my network.Here is what my home network currently consists of:
-Comcast Arris TM722 Broadband Modem
-Netgear WNDR4500 N900 Gigabit WiFi 450/450 Router
-2 x Netgear GS108NA 8 Port Gigabit Switches
-1 x Netgear WN2500RP Universal WiFi Range Extender
-4 Pc's running Windows 7 Home Premium
-Netgear ReadyNAS NV+
-3 x Blu-ray players - Sony & Oppo (2 wired, 1 connected by WiFi)
-Sony PS3 (wired)
-Onkyo TX-NR905 AVR (wired)
-Sony KDL-55HX800 TV (wired)
-2 x Vizio E400 Seies Smart TV's (1 wired, 1 connected by WiFi through Netgear WN2500RP Range Extender)
-HP Photosmart Printer
All wired connections using Cat6 ethernet cabling.So, I want to setup a Gigabit Firewall between the modem and the router (and just use the router as the wireless access point) but I don't want to take a hit on my bandwidth speed.I was thinking of the Netgear ProSafe FVS318G for this.
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Apr 17, 2013
Recently moved into the hardware firewall space and have a ASA 5510. Having some issues trying to get traffic through the box to my 4 dedicated servers. all the servers have static IP's and are connected to a private switch into one of the ethernet ports on the firewall(0/2). Public internet connection into another(0/0). 1 of my servers has a connection to the management port, and the public switch, and this is the one im trying to do the configuration on.
Im unsure what to set the IP address of my "outside" interface as. need to have RDP,FTP, HTTP traffic going to each of the 4 servers independently, pretty sure i can get the rules in place to allow this, but cant seem to get any traffic to go through the firewall to any of the other 3 servers.
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Jun 22, 2012
How to set up a time machine MacBook Air (Mac OS X 10.7.4) on EA4500 (2.0.37) with the disk WD MyBook USB 2TbThe disk is divided into two sections 500 and 1500, 500 by the time machine.After the command (defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1) time machine saw the network drives, but can not be backed up (not supported AFP)
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Dec 10, 2012
i am also facing the same problem with lenovo machine in windows 8 ,i have updated WLAN drivers ,even WLAN switch is on ,but still not able to diagnose the issue?
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Dec 10, 2012
i am also facing the same problem with lenovo machine in windows 8 ,i have updated WLAN drivers ,even WLAN switch is on ,but still not able to dignose the issue
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Jan 8, 2013
I am working on Cisco 3550 switch on a certain requirement. I have got an access point connected to the switch and few mobile phones connected to the access point. I get the list of mac addresses connected to the switch ( Both access point's mac address & the clients addresses) by "show mac-address table dynamic" command. However, i am unable/confused to get the output of the following scenarios:
1. I would require to export the mac address from the switch to the local machine in any format (May be by using an SNMP tool, if available) so that the same needs to be used in my C# for development.What would be the way for the same ?
2. The mac address in the mac address table doesn't get updated dynamically. (Eg Scenario: A wifi client gets connected to an access point which inturn is connected to the switch, the mac address of the client shows up in the switch table. However if the client is disconnected, the client's mac address would still be displayed in the switch table )
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Jul 20, 2011
New Win-7 machine set up. I used the printer set-up wizard to install a networked printer in the new machine with absolutely no problem. Proved it would print from that machine.Now, I get a call informing me that her old XP machine, which had been printing to the network printer with no problems, will no longer print.Documents go into the print queue, but they don't get printed.No error messages show up.I did some messing around via remote access, and finally removed the printer with the intention of reinstalling it.Scanning for network printers turned up several redundant instances of the same printer with different names. Some are identified as "invalid" some a "access denied". Bottom line. I can't get any of the selections to install.On the Win-7 machine I did find a window that indicated that the printer is designated as being shared, but I didn't explicitly set it for sharing when I installed it. Also, I somehow got to a window that told me that for printers that were to be shared with other versions of windows I could optionally install drivers to support such machines. Didn't have the driver disk handy and took the window down. Now I can't even find it again.I need sorting this all out.Part of the problem is that out there in "network land" there are redundant remnants of previous installations that are being remembered inappropriately.
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Oct 25, 2012
Having a strange issue with RDP to a XP machine through a L2L tunnel.Tunnel is between an ASA5505 and ASA5510. Site A 5510, Site B 5505 I have a handful of Win7 and XP Dev machines running on ESXi 4.1 within Site A.Site B to Site A I can RDP to all Server 2008 and W7 machines(physical and virtual).I can also RDP to a physical XP machine.I can ping the XP VMs by name and IP successfully.I cannot RDP to the 5 XP VMs running on the ESXi 4.1 host Site A to Site B I can RDP from the XP VMs on the ESXi 4.1 host to any machine within Site B.Within Site A I can RDP to these XP VMs AnyConnect I can AnyConnect into Site A and RDP to the XP VMs I have tried to Telnet on 3389 to the XP VMs with no success.
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Apr 29, 2012
I have a network problem. My windows 7 machine is not detecting win xp machine whereas win xp machine is detecting win 7 machine. They are in the same workgroup named Home. And the networking system is set to work. I have left the homegroup I was previously in. I enabled file sharing for devices that use 40 bit and 50 bit encryption. On XP I have enabled NetBios over TCP/IP. File sharing is enabled on both computers. I think it's something obvious as both instalations on different computers are really fresh and both windows haven't been tampered with.
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Jul 25, 2012
Switching out a 5510 as our primary firewall with a 5520. I've essentially copied the working config from the 5510, and put it on to the 5520, making small changes where necessary. Plug everything. I cannot get out to the internet.
Facts:
-All interfaces have no shut on them
-No machine can ping out to the internet gateway
-All machines can ping out to the inside interface of the firewall
-It's not a problem with the internet because I can take a laptop, enter in our outside interface information, plug it into the internet gateway, and I can get out to the internet just fine.
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Dec 20, 2011
Ths only hapeens at one location. All the other locations are working the difference is this location goes through the firewall. If I bypass the firewall at this location it works.
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Oct 23, 2012
We have modem router 4-port with IP range 10.0.0.1 - 30 setting.one port goes to a library where we have a 8-port switch STLAB SWHUB-8p serving 2 pc with auto IP setting (internet works fine)and one port goes to another corner of the library to a switch TP-LINK TL-SF1008D V4.1 .4 pc are connected and a printer all are set with manual IP in an active rang of the router 10.0.0.10 - 14 they have to be on manual IP becuse of the ptinter.they cannot connect to the internet but I get the message connected.If I change them to auto IP - they can connect to the internet, the router gives them an IP.
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Jan 17, 2012
If i want to setup a router and switch in my small business... 11 computers. Can i run 2 switches into one router or is it better to run one larger switch into one router. Second is when I set it up do I need to assign addresses to each computer or do I just need to plug them in and setup the network with windows network wizard. I will have a shared drive on one of the computers or possably some network storage.
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Apr 18, 2011
I'm asked to think of a solution to make in an existing LAN connected by switches (connected to each other) to make another network availible.atm we have a network with 192.168.110.0 and we are short on IP adresses because of a large DHCP pool from wireless clients and a growing network with static IP addresses.So basicly what i want to accomplish is an extra network 192.168.111.0 in the existing LAN and all computers have to be able to communicate to each other and all computers have to be able to connect to the internet using gateway 192.168.110.1 (direct or trough route tables). For future growth an extra LAN 192.168.112.0 with not perse internet access for only VOIP, but that is on the side and is not a priority, because I can set up that network on the same switches easy without having them to be able to connect to the computers and servers in the network. (correct me if I am wrong)
What I found out browsing the internet is that a layer 3 switch may provide the solution, but I can't make out of the technical specs if thats going to work when both LAN's computers will be connected on the same switches.Also I found a lot of solutions with setting up a server with 2 NIC's and setting up routes on that server. But since we have a very large amount of network traffic with large graphical files, having 2 nics to route all that trafic doesn't seem like a desirable solution for my purpose.
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Aug 26, 2012
I have to admit I've never written my own Cisco configuration and I probably know just enough to break things. The last time I configured a Cisco was a few years ago, and the Wachovia people just told me what to type.
I have a Cisco WS-C3548-XL-EN and a Cisco WS-C3524-PWR-XL-EN "Inline Power" with default configurations and I want to setup VLANs. Basically, would this work?
SWITCH 1:Router on port 39, Wifi on Port 47, Uplink to 2nd switch's port 24 on port 48
Code:
en
conf t
interface VLAN10
no ip directed-broadcast
no ip route-cache
[code]....
And then I would test that it works, if it does issue #write memory, and it it doesn't powercycle and try again?
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Dec 29, 2011
how i can make my own hosting .. i own site and i need to make my own hosting?
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Dec 14, 2011
I have leased line 2Mbps of TATA Teleservices, which i want divide 1 Mbps to server & 1 Mbps LAN.
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Sep 22, 2012
I have been doing network and computer work for a small public library which will soon be needing to change internet providers. Our planned route will be to have a fiber connection directly from our local ISP, but we need to figure out the best network hardware to accommodate this network connection.We currently have two HP 1810-24G switches connected to a Sonicwall TZ100 firewall as the primary router. The firewall/router connects to the internet with Cat6 connected to a fiber optic media converter. The media converter is on lease from the current internet provider so it will be gone.Our new ISP has said that they can provide a fiber connection in our building to an SFP port termination, which is their recommendation. Ideally, this would be an SFP port in a router or firewall. However, there seems to be very few options for routers with SFP and they're all incredibly expensive compared to a network switch with SFP. While I imagine we could just terminate the fiber optic connection into a cheaper switch with SFP and connect to that with the firewall, our network is further complicated in that we have a CISCO LifeSize video conferencing system which ideally runs best without running directly through the firewall, which can cause some lag and glitches in the signal it seems. I don't believe it's possible to have the router WAN interface connect through to the ISP with a static IP and PPPoE sign on as well as another network devices using the PPPoE and a separate static IP address, am I correct?Have I just over-complicated this network issue, and everything should just be run behind the existing firewall, or should I be able to find a different firewall/router or switch that can connect with SFP to the ISP?
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Jun 15, 2012
I currently have CenturyLink (Qwest) DSL (12Mbps/896Kbps) and Comcast Cable (12Mbps/2Mbps) going into a Cisco RV08. I redirected all DNS traffic to the DSL line as an experiment with no decrease in web browsing speed. e are rural and speeds fluctuate considerably during the day. It seems like it's more of a response issue than a bandwidth issue. I would like to order a 2Mbps dedicated line from Comcast to use for DNS and VOIP traffic only, the DNS resolution times should be faster on that connection. There would be several tenants in this building using it for that purpose. The secondary purpose of this line would be for backup internet connectivity
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Jun 22, 2012
Looking for support on setting up an ATM managed switch. It is a little older and void of documentation, model being Marconi ASX-200BX, that I can console but am lost from there. Much different than any Cisco switch I've ever seen.0
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Jan 23, 2012
1. set up password on a new cisco 3750 switch
2. steps to recover a lost password.
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Feb 23, 2012
I am trying to set up a VLAN on my Netgear switch (GS105E). I want to create two separate networks and I want both of them have internet access.
I have configured port 1 and port 5 as vlan1 and port 2 to port 4 as vlan2. I plugged a cable from the router to port 5, and the computer on port 1 has internet access. However, the computers on port 2 to port 4 have no internet access.I had tried to create VLANs with the router but had no luck.
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Apr 28, 2012
How do I open all the ports for ALL of the ips on my dedicated server. I opened all the ports for the main ip that I RDP (Terminal Connection) into, but I can't seem to open the ports for the other ips that I got from my dedicated server provider.
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Jun 16, 2011
I have an old computer that is currently running XP at 2.1GHz Athlon AMD with 1.5 DDR RAM, would I be able to turn it into a dedicated server? More importantly, should I? all I have is a small home network running a couple desktops and a printer off one and connected by a wireless router to the internet, would it make a difference at all in processing speed or connectivity on any of them?
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Dec 22, 2011
Trying to set up a asa 5505 in transparent firewall mode. I cannot set the management ip address:
ciscoasa> enable
Password:
ciscoasa# config term
[Code].....
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May 22, 2013
I have ASA 5520 installed. I want to use ntp server for firewall clock setting. I found one open-access ntp server (stratum 2) in Los Angeles:
[URL] 209.151.225.100
Can I use the following command to set ntp server?
ntp server 209.151.225.100 source outside.
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Mar 22, 2011
I am migrating an a group of workstations that run a fire system from one software to another. The current workstations run the following info:123.123.123.xxx 255.255.255.0The new workstations run:100.100.100.xxx 255.255.255.0There is a central switch location using a GE-DSG-244 Layer 2+ Managed switch. There are two remote location using GE-DS-82 Managed Switches.The two networks must remain isolated, yet use the same fiber communications. The central switch connects to the two location using MM Fiber. From my research I believe I need to use the 802.1q standard to allow port trunking between the two switches.
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Feb 12, 2013
We have a Cisco slm248gt-na smart switch in our office that I am trying to configure to support and optimize for VoIP. We have desktops hooked up off the phones in most cases. Are there any config guidelines to optimize the switch so it has proper QOS set and VoIP gets higher priority over data.
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Dec 12, 2010
The question is: Will a 3750 switch route Jumbo frame sizes (e.g. 9000 MTU)?
We know that we can change the System MTU to 9000, and someone on a previous thread said that we can change the Routing MTU to 9000 as well, although I couldn't figure out how to do that. However, regardless of how we configure the System MTU and Routing MTU, I don't think we're able to adjust the MTU on L3 VLAN interfaces, so if we want to actually "route" between VLANs on the switch, we're limited to 1500 MTU.
Our situation is that we have a customer connecting to our 3750 switch, and this customer wants to use Jumbo frames. The customer connects to our 3750 switch via their own VLAN, with their own L3 VLAN interface configured on the switch. The customer will point their traffic towards the L3 VLAN interface, then we want to route them onto another VLAN, via a different L3 VLAN interface, before forwarding their traffic. Because of the limitations noted above, specificially regarding the routing between these VLANs via L3 interfaces, I do not think we'll be able to support 9000 MTU frames on this 3750 switch. I think the L3 VLAN interfaces will limit us to 1500 MTU, regardless of what we configured via the global System MTU and Routing MTU settings.
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