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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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 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)
I need to forward port 3000 and port 25 from outside to inside.For example, from the WAN : [URL] must be redirect toward . What is the Correct Configuration ? And what about the Inside/Outside Traffic,Is there any configuration to add ?

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Cisco Firewall :: ASA5505 - Configuration To Allow Inbound / Outbound Mail Communications

Dec 26, 2011

I’m trying to configure my ASA 5505, in order to allow my inbound and outbound mail communications. Here with this mail I’ve attached a diagram which illustrates my exact network setup along with ip addresses.

In this setup I’ve enabled port forwarding on my ADSL router (port 25 and 110) and configured the ASA accordingly, and my mail server is located inside my network.

My problem is currently I can send mails from my inside network to outside but my not receiving any mails which originate from outside. I’ve attached my current ASA configuration as well,

C:UsersSuthakarDocumentsOffice_DocsThakralABC Computers

Final config on ASA5505

host name Cisco
enable password 8Ry2YjIyt7RRXU24 encrypted
password 2KFQnbNIdI.2KYOU encrypted
!interface Vlan1
nameif inside
security-level 100
ip address
[Code] ......

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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 ( 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 ( 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 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.

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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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Zoom ADSL X6 Static Public IPs?

May 26, 2011

I'm able to configure the device with the IP, Subnet, GW and DNS given by my ISP. However I need to assign public IPs to my other two servers ( Apache Server, Firewall) which are connected directly to the device. I've tried disabling NAT and assign static ips to each server. However, when I go to change the lan ip on the router it won't allow it. the errors are: pv0 and iplan are on the same subnet cannot have ip_range

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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 static (DMZ,LAN) 194.x.x.66 10.x.x.3 netmask static (DMZ,WAN) 194.x.x.65 10.x.x.2 netmask static (DMZ,WAN) 194.x.x.66 10.x.x.3 netmask static (LAN,DMZ) netmask
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 WAN :: 877 / 2800 - Use Static ADSL As Backup Connection

May 3, 2011

We have a few WAN connecting sites to ISP using BGP. we are looking at getting backup link for 1 site.

We have decide to use an IP WAN ADS L link. we will have 877 and 2800 for each link. from understanding, we have a static routing on IPWAN service. means when both BGP WAN and IP WAN connected to the ISP. ISP will use ADSL as primary ignore the BGP link. so other sites will see a BGP route coming from ISP via the ADSL link for this location.
So we have find a manuel solution, leave ADSL unplugged of power but setup same LAN ip address and connect the cable towards the core switch. when WAN link fail, switch on ADSL. So the static route will advertise to the rest of sites. 
just want to know is there any auto solution can disable the ADSL link/ ppp link when the 2800/WAN route is up. and enable the ADSL port when the WAN is down. not sure if HSRP/backup interface/tracking will work? and how?
site office switch - > 2800  - >  ISP  - > ADSL ->  ISP 
(need this link to be backup and protocol down, so the ISP will not able to connect to this link and advertise as next hop)

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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 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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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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Cisco WAN :: 837 - Simple ADSL Configuration

Feb 11, 2011

I need to configure ADSL on my 837 Router with simple configuration. The WAN IP address is dynamic from my ISP. I checked many websites and found different configurations everywhere. I don't know which is best suited for me. I used SDM and configured ADSL. When i checked the configuration from console i found that there is atm0.2 and dialer 2 configured with my settings. I cannot understand what is the purpose of atm0.2 and dialer 2 when atm0 and dialer0 are there. Is there a doc on ADSL config on 837?
interface Ethernet0 ip tcp adjust-mss 1412 exitinterface ATM0.2 point-to-point no shutdown pvc 0/35  pppoe-client dial-pool-number 1  exit exitinterface Dialer2 exitdefault interface Dialer2interface Dialer2 ip mtu 1452 no shutdown ip address negotiated dialer pool 1 dialer-group 1 encapsulation ppp dialer idle-timeout 120 dialer fast-idle 20 ppp authentication chap pap callin ppp pap sent-username username ppp chap password 0 password exitdialer-list 1 protocol ip permit 

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Cisco WAN :: ADSL Configuration On 887 Router?

Aug 1, 2011

I am installing a Cisco 887 to a ADSL2 Circuit and I cannot connect to the ADSL eventhough the show interface shows that both the ATM0.1 and Dialler 0 is up.
The configuration of the router is below.
Building configuration...
Current configuration : 5980 bytes
! Last configuration change at 11:12:58 PCTime Wed Aug 3 2011 by cisco


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Cisco WAN :: 1841 WIC 1 ADSL Configuration

Dec 12, 2011

I am configuring a 1841 router for use in small out office. I will use the s0/0/0 for main WAN T1 connection. I then wanted to use the ATM0/1/0 WIC-1-ADSL card as a failover. I am using weighted static routes for failover. Fe0/0 is LAN interface. When I go into SDM and look at the ATM interface it says this configuration is unsupported? 
1. Can't I just get a DSL modem and connect it to fe0/1 and not use ATM WIC and use below for failover?
2. If I have to use ATM WIC what needs to be configured for it to work with Att aDSL?

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Cisco WAN :: 891 - Configuration Behind ADSL Router

Jan 28, 2012

I would like to configure cisco 891 behind an ADSL Router(ISP one).The Details are: 

ADSL Router:
- DSL Connection: dynamic IP
- LAN:
- WAN:
- LAN:
- Configuration:
interface FastEthernet8
description Singtel Line$ETH-WAN$$FW_OUTSIDE$
ip address
I could ping to Router), but I cannot connect to the internet.

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Cisco Router 877W ADSL Configuration?

Nov 18, 2012

While i was looking around in my stuff in the office i have found a Cisco 877W ADSL router .. so i have decided to use it instead of the one i am using now which is provided by the ISP that's made by Huawei.Anyway i have a good knowledge about basic cisco router configuration but i had never configured ADSL Cisco router, so i looked around on Cisco website, and i was lucky to get this two linksCisco DSL Router Configuration and Troubleshooting Guide - Step-by-Step Configuration of PPPoA with a Dynamic IP Address - Cisco Systems[CODE]

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Cisco WAN :: 1841 ADSL Configuration With VPN Firewall?

Nov 27, 2011

I have a Cisco 1841 router with an HWIC-ADSL module installed. My ADSL connection is PPPoA with a dialer interface and I have been provided 6 ip's from my provider to use on this service. Previously I have connected Fa0/0 on the 1841 straight onto my network and used NAT and ACL's on the 1841, I would now like to change this and have Fa0/0 connected to a Palo Alto firewall and use the Palo Alto to provide NAT, Firewall & site to site VPN functions. What config would I require on the 1841 to allow me to use one of my ISP IP addresses on the Palo Alto to allow it to be a VPN endpoint? Do I need to configure the 1841 in bridge mode?

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Cisco :: SOHO 97 ADSL Configuration And Port Forwarding?

May 15, 2012

I have an ADSL connection which I would like to have my Cisco Soho 97 ADSL router configured to dialup and forward to port 8080.

My network is
Router is
Server is - Default gateway is

I am able to connect using the script below and get a public ip address but i cant get it to connect to the internet?what command to use for port forwarding to 8080?

hostname Router
ip subnet-zero
ip name-server
ip name-server
ip dhcp excluded-address


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Cisco WAN :: 1841 Basic ADSL Configuration Guide

Aug 5, 2012

I am trying to configure a Cisco 1841 to allow the users to access the internet. This is my first step with ppp. All the rest of the configuration is ok but I don't know how to setup the interfaces Dialer0 and ATM0/0/0.

Need very basic configuration that I can analyze and use on my device?

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Home Network :: Configuration Of Adsl Router?

Feb 11, 2011

in my past days i am using bsnl broadband. and also using adsl router for net-connection. i am connecting internet through wifi adsl router. now i am not using bsnl broadband. now i am using beem broadband in hyderabad. that internet connection is directly to my laptop through rj45 cable. but i want to configure adsl router to my beem broadband because i want to connect internet through is possible or not? if possible tell me the procedure.

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Cisco Switching/Routing :: 881 SDSL With ADSL Backup Configuration?

Feb 26, 2012

i'm looking for a cisco 881 configuration with SDSL line as nominal and ADSL as backup.

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Secure Wifi Configuration On Beetel Adsl Router?

Dec 31, 2011

I want to setup secure Wi-Fi on my Beetel ADSL modem/router. What are the parameters which I need to setup through the modem web interface?

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TP-Link ADSL2+ Wireless :: Configuration ADSL For TD-W8968

Feb 7, 2013

Region : Brazil
Model : TD-W8968
Hardware Version : V1
Firmware Version : 0.6.0 1.1 v0005.0 Build 120926 Rel.27100n
ISP : Telemar Oi Velox

Very weird situation... can't get full speed with the TD-W8968 with my DSL link..

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Cisco WAN :: 2951 - SecondISP ( ADSL) Module Configuration Separate Network?

Mar 9, 2013

I have one of my customer have cisco 2951 Router with two ISP and two  ADSL module .i already configure one ADSL module.rit now customer want secondISP ( ADSL) module configuration separate netwok because customer have Access pont they want connect directly to router is it possible
1st ISP already running but customer requirement 2nd ISP superate network with Access pont  not redundancy

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Possible To Emulate Adsl Connection On Server

Feb 14, 2011

Im just wondering if it would be possible to emulate an adsl connection on a server. What i mean by this is if we were testing a vpn or something they would have to connect through this box on the network and act as if it were a ppoe connection. Has any ever done anything of a similar nature? Is it possible at all?

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Linksys Cable / DSL :: Configuration Of WAG54G2 On Etisalat Adsl Fiber Optic?

Sep 30, 2011

correct settings > Configuration of WAG54G2 on etisalat adsl fiber optic

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ADSL Wireless Router Configuration With Ethernet (rj45) Internet Connection?

Dec 2, 2012

I have this adsl wireless router but my internet connection only has RJ45 directly connected to my PC. My questions is how can I use my ADSL wireless router with this kind of internet connection.. because I really want to make my connection wireless..

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Cisco VPN :: 1800 - Static Crypto Configuration

Sep 3, 2012

I ahve a requirement to configure static crypto for 1800 site and I need to configure on two sepaarte interfacs at spoke site which means I need to configure 1800*2 = 3600 peers at central site. The challenge I have is due to load balancing , the traffic dynamic crypto can not be used since traffic may be initiated from Dc on other link which may get dropped incase not encrypted.

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