D-Link DIR-655 :: Outlook / Exchange Port Block

Aug 22, 2011

I can connect to Internet perfectly fine.  I can even VPN back into my office.  However, once connected via VPN and I launch my Outlook Client, I'm not able to connect to get emails.  When I run a "netstat -a", I get my "SYN_SENT" to all my office domain controllers and exchange servers.However, if I connected via my Starhub USB Broadband dongle, everything works perfectly fine.What settings do I need to do on my router?  I tried port forwarding and application rules but none worked.

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Cisco Firewall :: ASA 5510 With 8.0.2 - Exchange 2007 Outlook Anywhere / OWA Users

Aug 15, 2011

We have a ASA 5510 which was running 8.0.2, we recently upgraded it to 8.2.5 and since the upgrade remote users for exchange 2007 are not able to download any large email attachments(over or close to 1MB). This is only happening to Outlook anywhere users or OWA users who are connecting to the exchange server using https(443) externally. If the same users connects internally they do not face any issue. When i check the logs on ASA i am gettings lots of RESET-O and RESET-I entries. Looks like the connection between the client and the server gets reset.

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Cisco Firewall :: ASA5510 - Outlook Clients Disconnect From Public Exchange?

Apr 4, 2011

We have a setup where clients on the internal network send/receive their emails through Microsoft Outlook client, while the Exchange server is hosted on the internet, outside the organization.The clients are connected to a Cisco switch, behind an ASA5510 Firewall. The Firewall is connected to an internet router, with double NAT (On the ASA and Router).

the outlook clients disconnect from the Exchange server, sometimes for hours, and then reconnect again. During these disconnections, the same client PCs are able to browse the internet normally. There are no restrictions for the traffic going from the inside to the outside. During the disconnections, if we try to connect using a public IP bypassing the ASA & router,.

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Cisco Security :: Securely Access Exchange Server 2007 Through ASA 5510 Using Outlook

Dec 26, 2011

Is there any way to access a MS Exchange Server 2007 on Windows server 2008 through an ASA 5510 running 8.4 with a full MS Outlook client (not using OWA - web browser)?  OWA is currently working fine but I was wondering if access via the full Outlook client is possible and more importantly...is it opening up too many ports on my 5510? 

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Block Port 443 Only For Skype In Tp Link Router?

Jul 24, 2012

Except email, we want to block every thing for users temporarily through router.If I block all ports from 400 to 65334, skype doesn't work but email also doesn't work.If I open only port 443 among blocked, both email and skype works.

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Trace Port Used By Exchange Server?

Mar 3, 2012

We use microsoft exchange for outlook. I want to know which ports are being used by our exchange server to receive and send emails. Is it possible to check that?

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D-Link DIR-655 :: Outlook Will Not Open Over VPN

Sep 4, 2010

just upgraded from a Netgear 'G" router to the DIR-655, love the features of the 655 including the USB port. This is the issue, when I connect VPN to my job, I can see all of my files, databases, spread sheets, etc and use them no problem at all. Have a 25 meg connection via Comcast.I can not open my outlook 2003the program opens, however it just sits at trying to connect and then time out. Have tried for 10 days now with no luck. Lan team at job state that "N" routers are blocking traffic and ports that outlook needs, 5 other users have this problem at work.

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Cisco Firewall :: 5510 - Outlook Port Only Permit (POP3 995 / SMTP 587) With TLS Encryption

Jun 3, 2012

In Cisco ASA 5510 , outlook port only permit ( pop3 995/smtp :587) with TLS encryption. How we can do it thru ASDM .

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Cisco Routers :: Exchange Server - Port Forwarding On 2811?

Sep 18, 2011

Basically the problem that I have is that I have a new Exchange server sitting on 192.168.12.2 IP address and on the router I have this NAT enabled
 
ip nat inside source static tcp 192.168.12.2 110 212.115.5.5 110 extendable ip nat inside source static tcp 192.168.12.2 25 212.115.5.5 25 extendable
 
The Exchange can receieve emails but it will not send them. It cannot make connection to any of the smart hosts on port 25 or can't even send mail using DNS. When I run telnet my.smarthost.com 25 it will not connect but if I run that from the router then it connects fine.

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Cisco Firewall :: Port Forwarding Exchange 2010 OWA Using ASA 5505?

Jun 26, 2012

I am trying to port forwarding Exchange 2010 OWA using ASA5505, wherever I used object NAT or Twice NAT it just doesn't work.... here is my config:
 
access-list outside-access remark "Exchange Server Access Rules"
access-list outside-access extended permit tcp any host <public x.x.x.11> eq smtp
access-list outside-access extended permit tcp any host <public x.x.x.11> eq https

[code]...
 
note that i use public ip  <public x.x.x.9> on the outside interface for PAT, so all hosts in the same private can access internet

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D-Link DIR-655 :: Connect Outlook Client Through Server?

Feb 18, 2013

I've replaced my old wireless router with a new DIV-655.  Now, I can connect to my work's VPN and connect to servers and data via the VPN, but my Outlook client will NOT connect to the Exchange server.It (Outlook) just sits there saying "Trying to connect to Microsoft Exchange.Will it work.

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D-Link DIR-615 :: Laptop Setup To Connect To Exchange Server For Email

Apr 12, 2009

I'm hosting my email on an Exchange Server 2003 box and have my laptop (Vista Ultimate 32 bit) setup to connect to the exchange server for my email. This works fine through a LinkSys RV042 in one location and a LinkSys WRT54GC in another, but fails through the DIR-615 B2 (2.24 firmware) at home. I'm guessing it's blocking something needed for the MAPI connection.

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How To Block Port 80

Mar 14, 2011

How to block port 80 IN xp

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How To Block A Port On Local PC

Sep 25, 2011

I dont currently have access to the router and i was wondering is there a anti-virus program that allows you to block ports to the local pc? Or is there another way to block programs using peer-peer network connections such as PPS.

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How To Block Port 8080

Feb 23, 2011

how do I block / unblock ports in ASA Firewall 5500 series?

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Cisco Security :: Block Port 135 Using CSA 6.0.2.145 On Windows 7?

Mar 13, 2011

I have installed CSA on windows 7 with rule to block rpc port 135.But when i am scannig this host, this port is still opened.I changed OS to Win Vista,Win7 x86, but there is no changes.Is it possible to block port 135 using CSA on windows 7?

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Cisco WAN :: 7200 - How To Block SMTP Port 25 On Router

Jan 24, 2012

We are running ISP and now a days we have many spam in our network, we want block the SMTP port 25 block on Cisco router 7200.  So we can block the spam in our network.

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Cisco WAN :: 2960 - Block Outgoing Multicast On L2 Port?

Aug 2, 2012

is it possible to block outgonig multicast L2 frames on an Ethernet port in outgoing direction on a 2960 Switch?
 
I tried the "switchport block multicast" command, but the description of this feature relates to only "unknown" multicast!?
 
But what means "unknown multicast"? Even if activated, I see a lot of multicast traffic going out that port: IGMP, PIM, SSDP, HSRP, OSPF, .. and also pings and VLC streams to multicastaddresses (ip igmp snooping disabled).
 
I also tried to map a "mac access-list" to that port, but the "mac access-group" interface command is restricted to only incoming traffic.
 
Reason: we assume, that there are a couple of specific enddevices, that might react strange to some multicast. Therefor we would like to block outgoing multicast on that specific ports.
 
I tested it on a 2960 12.2(53)SE2

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Cisco WAN :: Block Some Port From Outside To Inside On Router 2911

Sep 5, 2012

What is the configuration for allow port from Outside to inside( 80,21,https...) and i want to allow traffic from outside to inside only 80,https and 21.

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How Does Firewall Block Or Filter Traffic On Specific Port Or IP Address

Nov 15, 2011

How does a firewall block or filter traffic on a specific port or IP address?

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Block 1433 Port With Access List For Specific Ip Address?

Jan 2, 2012

I want to block the sql port access of my server to all except few of my ip addresses while access list on Cisco Router IOS how do i do that.

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Cisco Firewall :: ASA 5510 - Setting Up SMTP Port Block?

Mar 5, 2012

how to go about setting up the ASA to block any SMTP traffic outbound except for our Exchange Server. This is in relationship to a SpamBot issue that blacklisted us. I have an ASA 5510 running version 6.2(5) / 8.2(2) with three ports. DMZ, Inside and the Outside interface. Up till today, I only needed to block outside traffic to our internal network which I used the ASDM to configure a rule on the outside interface for an incoming rule. I am assuming I need to create an outgoing rule on the outside interface; however, just to make sure I understand the terminology/traffic flow, I created the rule with my computer as the source (192.168.0.131) with ALL destination and the service as HTTP. My logic, which seems to fail here, is that any traffic from my computer going outbound would be blocked; however I am still able to browse... That said, if I were to change the source as the Exchange server and the Service Type to SMTP, it would not actually block traffic and therefore not solve our problem.  I even gone as far as permitting traffic from my computer, expanding the hit counter and I see no hits.  So I am no doubt doing this wrong. What I do know, is when I first created the rule, a second rule was automatically created (Implicit rule) that deny all sources and blocked all HTTP traffic until I changed it to Permit?

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Cisco Firewall :: 5505 Block Port 80 On A Specific Host In LAN

Apr 22, 2012

I'm using an ASA5505 (8.4(1)) and would like to block port 80 on a specific host in the LAN so machines in other remote LANs connected via VPN can't access this port on the host. Devices in the local LAN should have access to this port on the host. Here are the commands I'm using:
 
-access-list block_port extended deny tcp any host 10.20.10.20 eq 80
-access-list block_port extended permit ip any any
-access-group block_port out interface inside
 
These commands are not working as I would expect them to. When I browse to http://10.20.10.20 from a remote machine over the VPN tunnel I am able to access the host web server.

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Firewall Rules To Block All Inbound Internet Access To Web Server Except Port 443

Dec 1, 2012

Setup firewall rules that will block all inbound Internet access to the web server except port 443, Setup firewall rules that will block all communication between the two internal networks, except ports 7000 and 1702

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Routers / Switches :: How To Block Smas Port Scan Attack In Dir600

Feb 13, 2011

I m using DIR600 router. from few days my router shows smas port scan attack detected. then how to prevent this type of attack.

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Cisco Switching/Routing :: 3550 / Access List - Block One Ip Or Port

Jan 9, 2012

I have a layer 3 switch, 3550.I have several vlans on there just for playing around with. One of the vlans, has a vonage linksys box attached to it with a UK number attached. From time to time telemarketers call at 03:00 in the morning, this as I'm sure you can imagine is not much fun. The linksys box gets 192.168.3.3 as it's ip.The switch is connected to a non cisco router at 192.168.0.1
 
interface FastEthernet0/24
no switchport
ip address 192.168.0.2 255.255.255.0
 
I was thinking a time based access list would work best I have tried several variations but the phone still rings. I have tried access-list 1 deny host 192.168.3.3 permit ..... and more extensive lists but the phone still rings. I have not applied the time-range yet, so that's not the problem.I have applied the list to the vlan interface and to fa0/24 but it's not working.

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Cisco Switching/Routing :: 6509 - Block All FTP Traffic On Port 21 From Servers In Network

Oct 3, 2012

I am attempting to block all FTP traffic on port 21 from the servers in my network, and only allow FTP from one server to go out.
 
I have created the following ACL
  
access-list 101 Permit ip any any
access-list 101 Permit 21 1.1.1.1 0.0.0.0 any
access-list 101 Deny 21 any any
 
and have applied it to my truck VPN that goes up to my firewall
 
int Vlanxxx
ip access-group 101 out
 
But when i test ftp is still allowed by all servers.

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D-Link DIR-655 :: Can't Block Websites

Mar 27, 2011

I can't block web sites on my DIR655

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D-Link DIR-655 Block Certain PCs From Internet

May 13, 2011

I have a D-Link DIR-655 with various machines connected via Ethernet and WiFi. Can I disable internet access for selected PCs via the router? I still want them to access the LAN, just not the internet.

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D-Link DIR-655 :: How To Block Particular IP From Accessing Network

May 30, 2011

How do I block a particular IP from accessing my network entirely?  I have a hacker with a known IP I want to shut out.  I tried creating a DENY inbound filter (with just that IP as the range) but that didn't seem to work.  that hacker kept being able to attempt logins.

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D-Link DIR-825 :: Block Private Ip Pings?

Feb 27, 2011

In the new firmware version is there a way to turn off or not allow anyone to ping my router by blocking any private type of IP address? Which also include loopback addresses?

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D-Link DIR-600 :: Block Incoming Traffic From An IP?

Aug 20, 2012

I would like to block incoming traffic from a specific ip on a specific port

This is what I have

source: interface: wan ip address range: 5.xxx.xxx.226 - second one is empty (valid ip instead of x's) protocol: tcp

dest: interface: lan ip address range: both fields empty port range: 139 - empty field

ON and DENY box is ticked name field has some text in it

I click save and get this pop-up: Incorrect source ip address. Invalid format of the start IP address. Current Firmware Version : 2.11 The ip is obviously valid, what should I do?

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D-Link DIR-655 :: Block PS3 From Accessing Router?

Dec 6, 2011

Any step by step instructions (for the DIR-655) on how to block a PS3 from accessing this router?  I know how to log into the router's page and I can get the MAC address of the PS3, but I am clueless from there.  I want to block it completely is possible.

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