Cisco WAN :: Get Mail Server On Port 443 From Internal Network

May 24, 2012

I write here to see if some kind soul can not solve my problem (which is common to seeso many people around the world). problem: I have a mail server (192.168.1.17) configured static NAT because it is accessible byPublic IP (PPP.PPP.PPP.PPP). Everything works properly from the outside, but if I get my Mail server (on port 443) from the internal network (192.168.1.xxx) there 'verse. This configuration is called Nat inside-to-inside is done by default by some SOHO routers(such as the TPLINK from 25 euros) but Cisco did not succeed. I search on the internet for 2 days without a get nowhere. PS: I have a Cisco 1801 router. (or 1941 as another router).

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Cisco Firewall :: ASA 5510 / Add A Mail Server In The LAN And A Webmail Using Port 3000 On The Server?

Jul 24, 2011

I'am using ASA 5510 and I try to understand how PAT is working.I want to add a Mail Server in the LAN and a webmail using port 3000 on the server. ( webmail must be reachable from the WAN)This is my Configuration :actually LAN users access internet using NAT with one global IP ( 194.x.x.69) which is the ASA WAN interface.

WAN ----- ISP Router ----------     FW     ---------- LAN -------- Mail Server + Webmail
|             (25) | (3000)
194.x.x.69    192.168.1.254                     192.168.1.6
 
I need to forward port 3000 and port 25 from outside to inside.For example, from the WAN : [URL] must be redirect toward 192.168.1.6:3000 . What is the Correct Configuration ? And what about the Inside/Outside Traffic,Is there any configuration to add ?

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Feb 21, 2012

I'm new to the Cisco world and have so far got internet and VPN working (without SDM) using the IOS commands.I have hit a stubling block with port forwarding ports 80 (http) and 443 (https) to my small business server for outlook web access.I need to forward port 80 and 442 to internal LAN server 192.168.10.1.The Cisco 877 has a local IP address of 192.168.10.254. [code]

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Cisco Firewall :: 5520 Can't Access Internal Web Server From Outside Network

Aug 23, 2011

I am using ASA 5520 with 8.2.4 IOS. I'm new to ASA/Firewall. I need to do access webserver from outside network.From Laptop (192.168.2.51), If I connect to url... it should open page from 10.10.10.50.I also need to ssh to webserver from laptop. If I ssh to 192.168.2.50 from laptop, it should connect to 10. 10. 10.50. [code]I can't get to webserver from outside network, so now, I connected laptop to directly ASA 5520 outside port with crossover cable.ASA Inside port connects to L3 switch. Webserver also connects to L3 switch. But still doesn't work.

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May 21, 2012

I am using a 6500 with FWSM. I need to separate an internal server/HQ network from 3 or 4 different external connections. The external networks do not necessarily need to be isolated from each other.I have the option of using a 3 layer model: L2 Access layer to SVIs on the Distribution layer and then L3 to the 6500.L2 Access, connecting directly to the 6500s, with the SVIs on the FWSM.Is it better to have the FWSM outside the MSFC or Inside? Am i correct in thinking that "inside" vs "outside" is determined by whether the SVI's are configured on the FWSM or the MSFC? is there any performance impact from having the FWSM doing the routing instead of the MSFC.If the vlans are all configured on the FWSM, what is the 6500 doing, other than providing switch ports?

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Cisco :: Dual ISP On A 5510 With Static Nat To A Mail Server?

Sep 2, 2011

Only trying to have the mail server reachable via the secondary ISP link if the primary ISP link goes out. The public MX records with priority markings should make it so any outside hosts tries the first ISP address then the second ISP address if the first is unavailable. I would be using object tracking to control the default gateway in the ASA. I'm just a bit fuzzy on the NAT with a dual ISP config on single box.It shouldn't happen but... if traffic comes in on ISP2 while ISP1 is still up (and the current default gate) that traffic should return out the ISP2 interface (using the ISP2 address and avoiding asymmetric routing) since there already an existing connection present inside the ASA. Any server initiated traffic would still use the current default gateway defined via object tracking on the ASA.

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Cisco Firewall :: ASA 8.6 Nat And Access List For Mail Server?

Oct 30, 2012

Trying to figure this all out. I'm getting untranslated hits. I posted the config I have so far.
 
Code...

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Cisco WAN :: 887 ADSL Configuration With Static NAT For Mail Server?

Feb 8, 2012

I have configure 887 ADSL router with attached configuration. But users cant access internet properly. (Ex: yahoo and gmail mail cant access)

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Linksys Wired Router :: Static Route To Access TMG Internal Network Through RV042 Pptp Server?

Mar 20, 2012

Currently i am having a scenario where i have setup RV042 and which is connected to Microsoft Forefront 2010. PPTP works fine only on rv042 subnet but i am not able to access the "internal" network of TMG.RV042 (172.16.1.1) ---> TMG [external] (172.16.1.2) ---> TMG [internal] (192.168.1.1) Is there any way through static route to access the TMG internal network through RV042 pptp server?

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Servers :: Reaching Mail Server Outside Router

May 28, 2012

i have a network setup like the image in the link(url) and am asking how to make the PC's behind the router to reach the mail server??,when i ping the ip of the server i get timeout.

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Mail Server Giving Different IP When Pinged At Different Times

Mar 14, 2012

When I'm pinging my mail server, it gave me different IP's at different times. As the mail server is actually owned by us, I would like to know if that is possible without the IP actually being changed by someone. This is really critical for me. I didn't mean to cross post so providing the URL of the other place where I posted..

If you'd like I may attach the screenshots for the same, but don't think that will server any purpose.

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Cisco Firewall :: Distant Mail Server Not Working On ASA5510

Jun 15, 2011

My mail server is not in my network, it's over internet elsewhere.After installing the ASA 5510, i can not get my mails any more.

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Cisco WAN :: ASA 5510 - Mail Server Error 421 SMTP Connection Went Away

Oct 11, 2011

I've got some problem with my Mail Server since I've migrated to an ASA5510.Actually the server is in a DMZ with a private Ip ( 10.x.x.2) and it is translated to a Public IP ( 194.x.x.65).I use these configuration :

static (DMZ,LAN) 194.x.x.65 10.x.x.2 netmask 255.255.255.255 static (DMZ,LAN) 194.x.x.66 10.x.x.3 netmask 255.255.255.255 static (DMZ,WAN) 194.x.x.65 10.x.x.2 netmask 255.255.255.255 static (DMZ,WAN) 194.x.x.66 10.x.x.3 netmask 255.255.255.255 static (LAN,DMZ) 192.168.0.0 192.168.0.0 netmask 255.255.248.0
 
Some Users received in there mailbox a system administer error message :

Object : Impossible to deliver : test Your message could not be deliver to one or more of its recipients: 421 SMTP connection went away!
 
When they try to re sent it some times later, message is sent without problem.

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Servers :: Mail Server Showing Multiple IP's When Pinged?

Mar 14, 2012

When I'm pinging my mail server, it gave me different IP's at different times. As the mail server is actually owned by us, I would like to know if that is possible without the IP actually being changed by someone.

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Cisco Routers :: RV042 Email Server Not Send Mail When Switch From Wan

Sep 28, 2011

Just installed a RV042 with dual wan connections. Would like to make the WAN 2 (new cable modem as well) the primary connection over WAN1 (DSL), however whenever I switch from WAN1 to WAN2 in Smark Link set up, our email server will not send mail out, even though nothing is blocking the connection.

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TP-Link 3G/3.75G Router :: TL-MR3420 / Fail To Connect Mail Server

Mar 10, 2013

Region : Denmark
Model : TL-MR3420
Hardware Version : V2
Firmware Version : 3.13.27 Build 121206 Rel.60215n

I have a TL-MR3420 router placed in a remote location. The internet connection is via 3G, and since the telco is shifting the IP every 24 hours, the router is configured with DDNS from no-ip.org. This is working OK most days, but sometimes the DNS fails to update. To be able to trobleshoot it, I am trying to make my router send a mail with the logfile every hour. This function seems to be easy and out-of-the-box, but it doesn't wiork. Whenever I try to mail the log I get the error message "Fail to Connect the mail server.".

It is not possible to enter another SMTP-port, so I asume the standard port 25 (like this thread). Most ISP-mail services require SSL/TLS and/or use an alternative port, so I have made my own server. This server is visible on the Internet, and I (and others) are able to connect and send mails using smtp on port 25. But, still my remote TL-MR3420 keep saying "Fail to Connect the mail server.". I have tried nearly everything, including disabling authentication and giving the IP-address of the smtp server directly instead of the URL.

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Oct 11, 2012

Is it possible to create a service which will forward public port 9010 to an internal IP address with port 23 ?
 
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Mar 7, 2013

Region : UnitedKingdom
Model : TD-W8970
Hardware Version : V1
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ISP : Virgin Media

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Belkin Routers :: AC900 / Windows Live Mail - Server Has Unexpectedly Terminated Connection

Nov 20, 2012

I replaced a similar router from a competing company with the AC900 N900 router. I open Live Mail (IMAP) and keep it open during the day. Since switching over, when I periodically look at email on Live Mail, I frequently get a "Windows Live Mail" message saying "Your server unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity." I have never received this message from either one of the previous routers - LinkSys, Netgear.

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Linksys Wired Router :: RV042G / Create Service To Forward Public Port 9010 To Internal IP Address With Port 23?

Oct 12, 2012

Is it possible to create a service which will forward public port 9010 to an internal IP address with port 23?First of all, I do not like to open the public Telnet port to the inside so I would use another public port and second my ISP does not allow some public ports beneath port 80?

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Not Receiving Mail From One Person On Office Network

Oct 31, 2012

In Outlook 2003, I am receiving mail from all others on the office network except one person and wondering what I can check to fix this

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Dec 25, 2011

1)how is a mail transferred from one e-mail account aaa@xxx.ac.in to bbb@yyy.ac.in . Also explain some features of SMTP Protocol .

2)Write the Syntax and meaning of functions which convert from the network format to the host format.

3)Sketch the different scenario of how computers are connected together in a LAN.

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500 Internal Server Error?

Jul 20, 2012

my laptop sometimes gives a 500 internal server error when I try to go to any website. our other wireless devices such as our phones don't do this while the laptop is.

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Cisco :: Internal Server Is Not Accessible From Outside Static?

Mar 23, 2013

I have nated my 172.81.15.0 255.255.255.0 into my internal server 10.1.10.164 , i can ping the out side server but the internal server is not accessible from out side static (Database-Servers,interface-sms) 172.81.15.2 10.1.10.164 netmask 255.255.255.255icmp permit 172.81.15.0 255.255.255.0 interface-smsroute zemen-sms 172.81.15.0 255.255.255.0 10.131.199.201 1access-list Database-Servers-in extended permit tcp host 10.1.10.164 host 10.185.62.144 eq 9090access-list Database-Servers-in extended permit tcp host 10.1.10.164 host 10.185.62.144 eq wwwicmp permit host 10.185.62.144 interface-smsi can ping the out side server 10.185.62.144 with out a problem . from the server 10.185.62.144 i can ping untill 172.81.15.2 and it will not ping the natted server 10.1.10.164. as u seen the accesslist ping is permitted.

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Cisco Routers :: RV082 - Internal DNS Server

Jan 19, 2010

The RV082 is a great unit, however when VPN clients connect the QuickVPN Client has a setting to use the Remote DNS settings of the RV082. The RV082 has no way of linking or using a user-defined DNS. I have an internal DNS Server that I would like the VPN Clients to query on internal name lookups (kindof the point of having client vpn, so they can access internal network shares etc. On the diagnostic page the ping and name resolution can only check external DNS and internal IP's. Wouldn't it make sense to at least make the RV082 aware of internal DNS Servers? Then the Ping and DNS lookup would be able to test both zones? Is this something that can be looked at by Linksys Developers for this product? The WRV210 (a cheaper and lower level model) has this functionality.

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Cisco VPN :: 3000 - Internal Authentication Server

Aug 19, 2012

Problem about authentication in VPN 3000 but until now I haven't had return on neither of the post maybe those I'm more clear than others.

I have a VPN 3000 with PPTP Tunnel VPN and the first authentication option is on Server Radius:
 
Configuration > System > Server > Authentication is firstly the Server Radius and after Internal ( Authentication on Base Group Internal )
 
But, when I configure a user in User Management > User  it isn't work. I think that authentication order is firstly Radius and if it don't find the second option is processed which ( this case ) is Internal server. but don't occour the error in log is:

44 04/20/2011 00:00:08.550 SEV=3 AUTH/5 RPT=137 187.55.63.215 Authentication rejected: Reason = Authentication failurehandle = 299, server = (none), user = x1, domain = <not specified>
 
46 04/20/2011 00:00:08.550 SEV=5 PPP/9 RPT=135 187.55.63.215 User [x1]disconnected.. failed authentication ( MSCHAP-V2 )
 
how is the behavior the VPN 3000 when the firstly server ( this case a Radius ) don't be find ?? the second it's processed ??

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Cisco WAN :: 2821 / When Web Server NAT 'd Access From Internal LAN

Mar 26, 2012

For a config on a 2821 router with IOS 15.1?I've setup an internal web server and am able to acccess it from outside our network but not from inside (on a separate internal LAN - 192.168.10.0).  When on the internal LAN - DNS points to the Public IP for the web server - so we'd need to route through the Public IP to access the web server. 
 
What is the best way to allow access to the web server XX.XX.XX.231 from 192.168.10.0 network?
  
Related Config Lines to Allow Access to Web Server
NAT
ip nat inside source static tcp 192.168.1.230 80 XX.XX.XX.231 80 extendable
ip nat inside source static tcp 192.168.1.230 443 XX.XX.XX.231 443 extendable
 ACL
ip access-list extended WAN
permit tcp any host XX.XX.XX.231 eq 443
permit tcp any host XX.XX.XX.231 eq www

[code]....

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Cisco :: Forward A Port On An ASA 5505 To An Internal Ip Address?

Apr 24, 2012

I have been asked to "forward a port on an ASA 5505 to an internal ip address." Sounds easy for most of you, and I thought I did it right, but I am not certain. Basically, they want it set up so that when xx.xx.xx.xx:30000 (x's = the firewall ip with port 30000) is accessed from outside, it is forwarded to an internal ip on port 30000 (xxx.xxx.x.xxx:30000)

Here is what I tried from within ASDM 6.4:

1. NAT Rules-add static NAT route:
original-Interface: inside
-Source: xx.xx.xx.xx (local ip of computer on LAN they wish to access from outside)

Translated - Interface - Use Interface IP Address

Enable PAT: Original and Translated port both set to 30000

2. Access Rule - add
Interface: Inside
Source: any
Destination: xx.xx.xx.xx (IP of Firewall)
Service: tcp/30000

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Cisco Firewall :: Isolate Internal Net On Port 4 Asa 5505?

Nov 20, 2011

I want to have my port 4 on the asa 5505 only allow access to the internet and not the internal network, what do i need to do?

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Cisco :: Configure NAT For Internal SMTP Server In ASA 5520

Sep 21, 2012

I need to configure my ASA 5520 version 7.3 firewall to translate our SMTP server residing in local LAN to use different IP address from the outside interface which is used by all other computers to access Internet. Under NAT section, I have NATted this internal SMTP server with different IP address(eg x.x.x.1) and also translated the remaining IP addresses in the LAN to the outside interface(eg x.x.x.2)

my problem is, Whenever i check the header for message coming from the smtp server it shows that, the SMTP server is also translated by using the same outside interface public ip address(i.e x.x.x.2) which is used by other client machine to access internet instead of the x.x.x.1. How I can get my SMTP server to use separate IP and avoid to be blacklisted by some domain.

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Cisco Firewall :: Internal DNS Server Entry ASA-5505

Jan 12, 2011

I have a client in a workgroup environment. They are a small company with perhaps twenty systems. Their infrastructure consists of a Dell Switch, a Cisco ASA-5505 which hands out the DHCP and a router. And that's that.They have been using an external IP as their DNS Server to get out to the Web. However, they now want to add an internal Linux-based DNS server.In looking through the ASA-5505 today I noticed a field for DNS enteries. Is this where the IP for this new internal DNS Server (in the secondary DNS field) would go?If so, would it be necessary to reboot the ASA-5505 for this change to take effect?

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Cisco VPN :: ASA 5505 Cannot Passthrough PPTP To Internal Server

Feb 10, 2013

I add a new Cisco ASA 5505 as firewall in of company network. I found the PPTP authentication did not get through to internal Microsoft Server.

ASA Version 8.4(3)!names!interface Ethernet0/0switchport access vlan 2!interface Ethernet0/1switchport access vlan 2!interface Ethernet0/2!interface Ethernet0/3!interface Ethernet0/4!interface Ethernet0/5!interface Ethernet0/6!interface Ethernet0/7!interface Vlan1nameif insidesecurity-level 100ip
[Code]....

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Cisco WAN :: ASA 5505 - Assign External IP To Internal Server?

Mar 2, 2012

I have 3 external ips from my isp:

222.222.222.221
222.222.222.222
222.222.222.223

The first one I use to provide internet access to my office. The other two I'm going to use for the following: I'm going to deploy a server in internal network which must have 2 external ips on his network interface (& one internal ip on the second,but that's ok: I cannot put an extra network switch before asa & plug this server there: this server is virtual & is on esxi host in internal network. External ips must be assigned to servers' interfacw,bot just forwarded there (ms direct access requirement).

My current config:
 
!
ASA Version 8.4(3)
!
hostname msk-office

[Code]....

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