Prevent A Certain Host On LAN1 From Accessing A Server On LAN2?
Mar 17, 2011
I am having some trouble understanding extended control lists. I am trying to prevent a certain host on LAN1 from accessing a server on LAN2, while still allowing the host access to the rest of LAN2.This is what I thought the command should be:
access-list 100 deny ip 175.16.1.2 0.0.0.0 175.17.2.2 0.0.0.0
My understanding was that:
Green = source & mask
Red = destination & mask
However this seems to stop all my other hosts on LAN1 from pinging the server also.
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Dec 11, 2012
i am using a Cisco 1841 with subinterfaces instead (NAT on a stick).From the internet i can access services on public IP being hosted in LAN2. But when i try to access the same services on the same public IPs but sitting on LAN1, it does not work.
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Dec 11, 2012
i am using a Cisco 1841 with subinterfaces instead (NAT on a stick).From the internet i can access services on public IP being hosted in LAN2. But when i try to access the same services on the same public IPs but sitting on LAN1, it does not work.
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Aug 28, 2012
i use HG530, and i am connected to internet by lan1 out of 4,,, in last time my modem restart itself,,when modem work, first 2 lights (power and ADSL) are on and 3rd (internet) is flashing, when modem resets, first light is on second ligt is flashing and 3rd light is off,,, i tried to change cables and everything, but when i move cable from Lan1 to Lan2 or Lan3 i cant connect it says unidentified connection,,so how can i repair that,, and also technical support told me that my electric power is low and it cause modem to reset, is there any way to prevent that from happening if thats true?
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Nov 29, 2012
how to prevent one network fro accessing another network by iptable
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Feb 4, 2011
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Jul 16, 2011
I have a home computer which part of the home's workgroup and I have a office laptop which is part of a domain. Both of these are connected to the home wireless router and I can ping from one to the other via IP only and not by hostname. I have to access DB which is on my home computer (workgroup) from office laptop(domain). How do I achieve this? I search the internet and found we can enable sharing by IP. But my usecase will require access to the workgroup computer using hostname from laptop.
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Mar 5, 2012
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Jan 10, 2011
I am using Vista and have only one user accounts.Now I want to prevent changing the DNS server IP. I can prevent changing the DNS server IP or disable the LAN Properties.
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Feb 26, 2011
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Jun 29, 2011
my laptop is re-staring when access the server
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Mar 8, 2012
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Aug 6, 2011
I get stuck in a problem,What can be the reason for not working my configuration or any other reason that can be .
[CODE].....
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Nov 19, 2012
Is this possible and if so what commands do i need to configure on my ASA 5510 for it to work.I have two web server within my DMZ and i want to access the outside url of on on the web server from the other. Currently i can access the internet from both webserver server but not the url form either webservers.
E.g. config
webserver 1 https://xxxxxx.xxxxxxx.com ---> public ip---> dmz ip
webserver 2 https://xxxxxx.xxxxxxx.com ---> public ip---> dmz ip
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Feb 22, 2013
I have this Minecraft Server hosted at TCP 25565.I don't use any router and is connected to an RG-Box directly.My Firewall is disabled and so is Avast!But still nobody can connect from anywhere. I gave them my external IP and nothing worked out.I did a "netstat -a" search, and yes, I do have a connection listening at this port TCP.Still, I get this "Connection timed out: Connect" error when trying to reach my server from anywhere out side of my network.I called my ISP regarding this problem, and they told me that they were only blocking port 24 and 25, all other ports is free to use. And they told me that I don't need to Port-Forward or anything, I just plug my computer directly into the RG-BOX, and I should be good to go. But I'm not.
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May 18, 2012
I have a router and a server that are connected through two unmanage switches. The router has DSL service in it and I want to access the internet on the server but I can't. The two are in the same network and it is a static IP network. I can ping the router from the server.
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Jul 30, 2012
I recently bought a personal laptop that I'd like to use at work. It came with Windows 7 Home Premium installed and because of that, I can't join it to the Windows Server 2003 domain we have. I don't really need to print or any of the other things that go with being on the domain, I just need access to a few key folders. Is there any way to access shares on the server with Win 7 Home?
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Feb 23, 2011
i'm getting "general network error" while accessing application from server..
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Jul 12, 2011
I cannot seem to see my server behind a cisco router. I have a feeling it is because our network phone system may be robbing the IP address?We have two fixed IP addresses.The first one, is assigned to the router.We have two swtiches set up behind router and all the other network stuff interanally wrks great.We also have full internet access. When I type the IP in on the web, it accesses the talkswitch phone system.I have set the internal IP to the server as fixed.I have port 21 open for FTP.When I run a test, the internet sees port 21 open. However, I cannot seem to cal lup the server over the internet. Could the talkswitch system somehow be interfereing with the logon?What would the proper syntax be to access the server?
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Mar 14, 2013
active# sh running-config
: Saved
:
ASA Version 8.2(5)
!
hostname active
domain-name dhalahore.org
enable password 2KFQnbNIdI.2KYOU encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
[code].....
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Aug 16, 2011
We have a ASA5510 with a webserver in the DMZ network 10.2.2.0/24. We now want this web server to be able to access the Exchange server in the Inside network 10.1.1.0/24. I researched this and it seemed straight forward according the the Cisco document below:
[URL]
I'm looking to do this with smtp so I added these lines to the config:
static (inside,DMZ) 10.2.2.30 10.1.1.11 netmask 255.255.255.255
access-list dmz extended permit tcp host 10.2.2.2 host 10.2.2.30 eq smtp
The configuration line:access-group DMZ in interface DMZ Already existed in the configuration so didn't need to be re-entered.
ASA Version 8.0(4)
!
hostname xxxx
domain-name xxxx.com
enable password xxxxxxxxxxxx encrypted
passwd xxxxxxxxxxxxxx encrypted
names
[code]....
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May 4, 2011
I have Cisco ASA 8.0(5) and I need to block specific url to acees my https server in dmz ?I read about websence technology, but I think it's not free right? Also I read abotu policy inspection map's but in my case is HTTPS not http ..
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Jun 19, 2011
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[Code]....
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Jan 5, 2011
I have a question regarding CSS loadbalancer. Let's say there are 2 vlans in CSS:
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2. Vlan 20: 10.1.2.0/24 for real server vlan.
Virtual IP 10.1.1.10 is created in CSS on behalf of two real servers (10.1.2.11 & .12) in Vlan 20. Client from Vlan 10 can http access to 10.1.1.10 successfully.
In Vlan 20 there's also few clients which need to access servers via virtual IP. Vlan 20 Client PC (10.1.2.101) can ping 10.1.1.10, but can't access 10.1.1.10 http service.
Is there any way for CSS to forward service request coming from Server vlan to be send back to the same segment?
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Mar 10, 2013
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However, if I configure a Standard ACL on the split tunneling I can access the server and all the services it provides.Do you know if I'm missing anything on the Extended ACL configuration?
Should I configure this any other way?
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Jan 20, 2013
Having a hard time hosting my email service on my DS212J. To be I honest, I have no idea where to start.
Info:
IP Address using Synology DDNS: example.synology.me
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Apr 24, 2013
I have a Cisco ASA 5505 with the base License. I want to split my network and add a new Internet Access, the first network in Orange works fine. My question is how can i access the file server from the second network (192.168.X.0 /24) ? The 3 switches are Cisco SF300-24P.
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Jan 16, 2012
Recently I have changed my ISP and switched from an ADSL (4Mbps) connection to a faster fiber connection (100Mbps). I own an WAG120N which after firmware 1.00.12 (currently installed on the device is 1.00.16) should allow LAN1 to be used as WLAN. This is true and I can use it to connect to the new provider.
However the speed when using LAN1 as WLAN on WAG120N is very slow: download 20Mbps and upload 10Mbps. The LED on LAN1 is orange instead of green as before. I have tested the ISP connection with an WRT160NL and the speeds are much faster: download/upload 87Mbps
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Aug 3, 2012
Minecraft 1.3 LAN server function fails because host IP bad. The host (a laptop) connects to the LAN with a proper 10.0.1.X type address, but this particular laptop uses a 169.* address when it establishes/reports the game (instead of it's 10.0.1.X) and no other computer can connect to it. Other computers DO establish/report the 10.0.1.X address they receive from the wireless router, and they can host just fine- but I really need to get the one laptop to serve as host since it has more horsepower.
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Apr 30, 2011
recently I had some malware on my Windows XP Professional (version 2002), so I followed a guide at Bleeping Computer [URL] to get rid of it. Problem is, for some reason, after I finished, I could no longer access the internet!When I try, FIrefox gives me their "could not connect" message: "Server not found. Firefox can't find the server at [site]." Check the address for typing errors such as ww.example.com instead of [URL]"When I try to log into MSN, the troubleshoot says I have a problem with my DNS and Key Ports.I'm not good with computers so I Google'd and found some ping-ing instructions. When I tried to ping [site], I get: "Ping request could not find host [site]. check the name and try again." This happens regardless of the site I use.Lastly, I tried "ping 127.0.0.1" from a troubleshooting site. It gives me: "Pinging 127.0.0.1 with 32 bytes of data:
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
[code]..
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Feb 16, 2012
So I have a proxy server in my home that all the computers use to access the internet (XP Pro). I edited the host file on the proxy to redirect traffic for various reasons (ad blocking, etc.) But I have noticed that it doesn't seem to affect the computers that use the proxy. For example one entry in the host file could be 127.0.0.1 abc123.com so that abc123.com would loopback to the localhost. For some reason this isn't working. Is there anyway to get this to work without changing the host file on each individual computer?
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Jul 8, 2012
Instead of using a IP address I would like to use a host address that points to a NTP pool.An example would be:ntp server 0.north-america.pool.ntp.org Can this be done on the ASA series?
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Apr 22, 2011
i have an RTA1025W router. When i plug a network cable into it nothing happens. When i power it down with the cable still plugged in when it boots the LAN1 led flashes rapidly then stops? Then no connection to it via the PC?
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