Cisco VPN :: How To Configure Router To Forward Traffic Coming In TCP Port 8100 To Machine
Aug 20, 2012
I have the following setup: Private network <-> SW <-> CISCO VPN <-> ISP MODEM
I have configured VPN part and is working correctly. I have a computer in the private network at static address 192.168.1.100 and an application is running on it on 8100 tcp port for clients.
Now I need to connect from the Internet to the application on 192.168.1.100 on port 8100.
How to configure CISCO router to forward traffic coming in tcp port 8100 to machine 192.168.1.100?? ISP Modem is going to handover all the traffic to CISCO device.
I am a total Cisco novice who has just had a ASA5505 installed to replace a linux freeware firewall (smoothwall).I'm told that the 5505 can't port forward traffic (e.g. ssh) from two external IP addresses to two internal destination machines via the same port # (22 in this example).
I am slowly getting this router configured........I am up and running. Traffic from All nodes inside can go outside. My next step is to configure traffic coming in to go to my server. I have Web, FTP, SMTP and POP running on the same server in my LAN. I need to us NAT/PAT to direct incoming traffic to it. I belive I have this done correctly, but obviously not...I only have port 80 configured in the config file, if I can get that to work the rest would be the same........
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?
When trying to configure ERSPAN on a ASR1006, I'm not getting any traffic on the destination port. ERSPAN flavour is LOCAL SPAN, as described in:
[URL]
Configuration used, is the following:
monitor session 1 type erspan-source no shut source interface GigabitEthernet0/0/2 destination erspan-id 10 ip address 10.10.10.1
[code].....
Apparently everything is configured in the proper way, however I’m not getting any traffic in the destination port. Also I’ve noticed the following in the details from ‘Session 1’:
I need to configure two voice-enabled cisco routers, each one has an analog FAX machine. The routers are connected with a serial connection. In the end, the faxes should be able to fax to each other.The fax uses RJ-11 and I've established that I will be configuring FSX ports. (These ports are used for analog devices such as telephones, modems, and fax machines). I am unable to find a single site that gives information about specifically configuring fax machines.
I have a small problem and I'm a bit confused, Cisco suggested that you should mark traffic as close to the end devices as possible. So I wanted to try marking the traffic coming from S1 to R1, S2 to R2, and S3 to R3 on Switch 2 (Cisco Catalyst 2960) with the following config:
I have problem with traffic coming from GRE interface and going further through FWSM on the same 6509-E chassis.It's very interesting and confusing. If packets are fragmented, I can go through, however, if I use normal packets (usual ping for example) traffic goes from outside to inside and stops on it's way back.
Here is the detailed info: WS-C6509-E with WS-SUP720-3B FWSM HW 4.0, SW 4.1(4)
GRE is done in hardware (source is loopback interface - only one loopback per GRE tunnel).
We have problems on central firewall with restricting traffic coming from remote office from IPsec. (The network sheme is attached) All branch offices are connected to central asa though IPsec. The main aim is to rule access from branch offices only on the central firewall, NOT on each IPsec tunnel According to the sheme:172.16.1.0/24 is on of the branch office LANs10.1.1.0/24 and 10.2.2.0/24 are central office LANThe crypto ACL looks like permit ip 172.16.1.0/24 10.0.0.0/8 the aim is to restrict access from 172.16.1.0/24 to 10.1.1.0/24 When packets are generated from host 10.1.1.10 to 172.16.1.0/24 all is ok - they are dropped by acl2 When packets are generated from 172.16.1.0/24 to 10.1.1.10 they are not dropped by any ACL - the reason is stateful firewall - traffic bypasses all access lists on a back path I thought that TCP State Bypass feature can solve this problem and disable stateful firewall inspection for traffic coming from 172.16.1.0/24 to 10.1.1.0/24, but it didn't work.The central asa 5500 is configured according to cisco doc [URL]
How to configure traffic flow between computers inside VLANs and a routed port? Here is the setup details:
1. Switch 3750-X 2. VLAN 100 - ( SVI IP address 192.168.100.1 /24) 3. VLAN 200 - ( SVI IP address 192.168.200.1 /24) 4. routed port gi1/0/48 (IP address 192.168.150.1 /24). Note: this port is directly connected to a firewall ASA 5520 port IP 192.168.150.100 /24
Ip routing is enabled on the switch and inter vlan traffic is flowing ok. I can ping the routed port gi1/0/48 from any computer connected in the VLAN 100 or 200. For example computer with IP 192.168.100.25 can ping the routed port 192.168.150.1. Switch can ping firewall port 192.168.150.100 and the 'sh ip route' command shows the network 192.168.150.0 /24 as directly connected network.
any computer in the two VLANs CANNOT ping firewall ASA port 192.168.150.100 Is it because inter VLAN routing does not work with a routed port on L3 switch? I looked up fallback bridging, but it is meant for non IP traffic.The goal is I am trying to set the ASA port as an internet gateway for VLANs.
I have a 857w adsl router, I have configured it to connected to my ISP and i get a dhcp address from them, and I have dhcp pool to assign ip addresses to wireless or LAN, i have nat overload on a BVI . I am now trying to get one of the LAN port which has a device of 172.16.0.3 to be accessible from the outside world, but it will not let anyone connect to it.
I need to forward port 2875 from any public address to an internal address 192.168.20.103. I am not getting something right because it will not work. Below is my config.
Current configuration : 11012 bytes ! ! Last configuration change at 23:30:24 UTC Fri Apr 12 2002 by cisco !
This is my Cisco LAB environment used for study but also in production for daily use. I am trying to setup a double-NAT network with just one IP from my ISP through the ASA & 3825 going to (2) end nodes and multiple ports for port forwarding. It is currently working but only as simple PAT and I cannot initiate FTP from the outside. removing the router, but this is my study LAB and it's a bit unconventional for learning purposes. I attached the diagram and need parts of the config.
I'm trying to forward ports for game connections. For this particular game, I'm trying to forward port 7777My ports aren't forwarding according to: Open Port Check Tool - Test Port Forwarding on Your Router and Open Port Check Tool[CODE]
I have my router set up and life was good. i now want to forward a port. i go into apllications/gaming put the application name, the port i want to forward and click enable. Save changes and i get a changes save message. When the browser goes back to the applications/gaming screen no port shows as being forwarded. If i go to canyouseemenow.org the port shows as being closed.
Windows 7 64 bit / Linksys EA3500 / (2) FosCam F18910W IP Camera’s I just installed a new EA3500. (Should I have purchased the 4500)?I need to set up port forwarding to enable wireless use of the IP cams with my iPhone. I had this all set using my former router, but it died.how to to port forward this Linksys EA3500?
i Have a router called Linksys BEFSR41v3 i need to port forward a port but it just wont open i loggerd in on my router using 192.168.1.1 after i click applications & gaming started the port on 100 and ended on 100 used ipconfig in cmd to find me ipv4 adres and putted in ip adress box also both protocol are on and i clicked the enabled function also i tried also got a static ip i used canyouseeme.org to cheak if my port is open it still says its not open.
We have configured Cisco 3750X POE series switchs with Stack.WS-C3750X-48P each with Redundant 1100W & 715 W PSU's. They are configured with Stack-Power in Sharing mode and the switches are Smart Stacked as well.IP Phone and Access points are connected its working in last two years,
Now we are facing some issue on Cisco IP Phone and Access point, When i have problem if unplug (disconnect & Reconnect) the IP Phone from Switch port,Power is not comming on switch port.Plug it into another switchport of the same Switch it may not power in any port.I tried shut & no shut and reconfigured on switch port , I have verified multiple switch ports same issue on the switch I have changed cable.
I attached an Iomego Home Media network hard drive to my Linksys E3000 router (via ethernet cable). Before setting up the remote access on the Iomega, I forwarded the ports that it wanted (443 and 21) to the static IP of the Iomega. I checked to see that they were open using yougetsignal.com and they were both open. After setting up the remote access on the Iomega, the 443 port closed and I cant even get into the "manage storage device" page for the Iomega. Iomega uses TZo for the domain names. They tell me that the association is made between the name and my public IP address. My router is out of warranty since Sept, so Linksys wont give me the time of day. I contacted my ISP and while they block a couple of ports, 443 is not one of them.I've installed the latest firmware (1.0.04 - Build 6). Reset and rebooted numerous times, Port 443 remains closed.
i want to open portforward to utorrent in arouter but i cant open the addres of the router lookand when i go to local area connection status /status/detailsi found number of ip but there is no gateway i take whole ip and put them in browser and its dont open but the last friday i wake up in 3am run cmd and put ipconfigi found the gateway 192.168.2.45put it it in browser its open want username and pass i know them but i see lets doit next day going to bed next day the gate way reverse to the stupid gateway in in the pic i cant use aprogram to open port as i cant knowing my router mode
Some routers are able to forward to broadcast directly by sending a port to 192.168.1.255, other's I've been able to trick by forwarding to 192.168.1.254 and then editing the arp table with 192.168.1.254 <-> ff:ff:ff:ff:ff:ff. Is there any way I can edit the arp table of the E4200? Is there a way to telnet in or get a console connection?
I encounter a problem setting up port 80 forwarding on WRT54g router.
Configuration:
- Numericable modem
- WRT54G router : portforwarding configured, accepting anonymous internet traffic, no DMZ, no port-triggering... in fact everything is fine except for ports 80/443
- Linux Ubuntu server + Apache2 listening *:80 and/or *:15001
1/ Situation 1: Apache listening on server's *:15001
-> Accessing from Internet (outside LAN) works very fine.
-> Portforwarding of router:15001 to server:15001 (TCP) works fine.
2/ Situation 2: Apache listening on server *:80
-> Accessing from Internet (outside LAN) FAILS.
-> Portforwarding of router:80 to server:80 (TCP) doesn't work. Diagnostic using the client machine's firewall tool showed the request doesn't get any return... no traffic back at all.
The system being fully operational when using port:15001 shows the problem does not come from server configuration.I still have to try a bypass of my router by plugging the modem directly on the server eth card.
-> If that works it would definitely prove the problem comes from the router, precisely the portforwarding feature as applied to port:80.
My guess is the following:
- As WRT54g router's remote administration interface is precisely set to listen 80/443 ports.
- As I still did not disable remote administration as I need it, but I will come to such extremities (very soon in fact as despair is gaining me
- Looks like WRT54g is unable to forward port 80 as this is it's remote administration port. You can set it up, but it just won't work, and there's no warning
Solutions?
- Disable remote administration? (will it work ? cause I would not risk to disable it for nothing...)
- Have remote administration litening on different ports than 80/443?
- Is my diagnostic correct ? (at least, does it seems to be...)
- (shall I get another device? Update to alternative firmware project?)
PS : I could be asked for ifconfig/netstats/hdw-fmw version, I would post later as I do not have access now.Looks like to me it is recurrent issue on WRT54g (maybe I'm wrong and just an **bleep** in LAN/WAN configuration which is highly possible)
I am trying to set up a web server behind WRT55AG router. I have read many forums where people are having the same problem, but none explain how to fix issue. The router will not forward any port to the server. Any attempt to access the server from outside my local network just brings me to the login screen of the router. I have tried port forwarding port 80 and 10080 and both do the same thing. Also, I have the firewall, remote management, and UPnP turned off
I am having an issue opening a port (4040) on the 655 for my Fedora-based subsonic server. Inside the LAN, I can see the device from other peer machines, so I am confident the port is open and listening. However, I can't seem to get to the machine-port from outside/internet.
I have tried Virtual Server and Port Forwarding with single port. The server has a stactic IP which I've included in the DHCP range and outside the range. I have a DSL connection (AT&T), modem only. I have updated firmware. I have exhausted the Subsonic community's knowledge, everything points to the router, but all the settings seem correct. What am I missing? Is if possible there is a defect in the router? (don't laugh). Is there a way to trace a request to that port to see where it is hanging?
I have one server 172.16.0.100 and i nat this server to a public ip X.X.X.5 and i open RDP for this public ip.Now when i access Remote desktop on this public ip x.x.x.5 it open perfectly.Now my senario is that i want to open a http url on port 5555,server ADMIN open port 80 for this URL on LOCAL lan(http://172.16.0.100:80)So how can i map port 5555 to port 80 on ASA 5520.so when i hit URL [URL]
i am trying to port forward my router so that i can run a minecraft server. When I put in th port number and save the changes, it brings me to a screen that says my changes have been saved yet when i go back to the page they haven't. I have tried deleting the cookies on my browser, using another browser, using another computer, and hard resetting the router for ten seconds. None of this works.
