Server :: Connect Cisco Router In Redhat System 5.1?
Oct 7, 2010How to connect a new Cisco router in newly installed Linux pc what are the configuration will have to do.
View 1 RepliesHow to connect a new Cisco router in newly installed Linux pc what are the configuration will have to do.
View 1 RepliesIm new in linux i want to configure my redhat machine as both router and transparent proxy!
View 1 Replies View RelatedI am new to linux redhat 9. how to connect my usb device to redhat linux.
View 2 Replies View RelatedI have two network interface eth0 and eth1 eth0 is on 192.168.0/24 network connected to the internet eth1 is on 10.10.10/24 network and DHCP for this network the clients connected to this interface can not connect to the internet but they can ping 192.168.0.4 which is the eth0 ip but can not ping 192.168.0.1 cisco router or anything else on 192.168.0/24 I have tried few tricks but still not working
1) iptables -t nat -A POSTROUTING -s 10.10.10.0/24 -o eth0 j SNAT --to 192.168.0.4/24 it did not work
2) iptables -t nat -A POSTROUTING -o eth1 -j SNAT --to 192.168.0.4 did not work as well
I'm Melvin, doing a hardware and networking course at Aptech, Kerala, India.
How to install IOS image (file.bin) via TFTP from Ubuntu to a Cisco 2600 router.
Please post the required steps to configure tftpd in Ubuntu.
And since it is insecure, please post recommendations to secure it.
Which folder will TFTPd use and what binary permissions to assign to this folder?
I was given a Cisco IP Phone (model 7962) and CyberGuard Firewall/VPN (model SG300) from my company. So that I can work from home. But I've been struggling for the past couple of days trying to get it to work. The phone successfully configures it's ip; but it hangs on "Registering".
The setup is such:Cisco phone plugs into the CyberGuard and gets assigned a private IP address; 192.168.48.34; from the CyberGuard.
CyberGuard plugs into my Slackware (12.1) box and gets assigned a private IP address; 10.0.0.191; from the dhcpd server on my Slackware box.
Slackware box then masquerades that 10.0.0.191 into my static public address on the internet.
Port 1723 (PPTP) is open in the iptables firewall on my Slackware box. I've also tried disabling the firewall (ie opening all ports) on my Slackware box.
On my Slackware box; via iptraf; I can see traffic between my Slackware box, the CyberGuard, and my company's server.
Traffic such as:
Code:
And on the company's server; the following is observed:
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My company just keeps saying "open port 1723 + 47". But as I stated above; I have opened them. And Internet searches have revealed absolutely nothing. At this point; I am completely lost as to what may be wrong.
I bought a Cisco 1841 to study for a cisco certs. In iptables terms filtered packets are -j REJECT instead of -j DROP. To make things worse telnet and ping replies are on by default.
View 5 Replies View RelatedI'm trying to figure out a simple script to go thought 500 Cisco devices to see if I can SSH to the device. Then display something like this:
10.0.0.1 Yes
10.0.0.2 No
10.0.0.3 No
I tried something like this:
Code:
ssh -q -o BatchMode=yes -o StrictHostKeyChecking=no user@10.0.0.1 "echo 2>&1" && echo "Yes" || echo "No"
When tested the above line it replied No, even if I tried it on a Switch that does not have SSH configure.
I have Red Hat linux server with update 8. Explain me in detail how to connect external hard disk to linux server so that it will detect it. Also let me know how can i come to know whether the linux server has detected it. Also how to copy the linux server harddisk content/data to this USB External hard disk
View 8 Replies View RelatedI have been able to find enough information that I need to enable 'time-udp' in /etc/xinetd.d/ But there isn't an entry for time-udp. How do I enable time-udp (Time of Day server) on a Red Hat system? It's RHEL 5.6 64bit.
View 1 Replies View RelatedCould you possible to install UDB DB2 8.2 install on redhat linux 5 .. what is the procedure please reply are send me the installation link..
View 2 Replies View Relatedwant to connect a linux server using centos 4.8 onto a wireless router. then clients will access mails/internet using the wireless router. how do l go about it. anyone with an example
View 4 Replies View RelatedI am trying to configure and connect Cisco VPN on Ubuntu 10.04. I've imported .pcf file. The new vpn conn appears in the VPN Connections option. Now when I select it, it doesn't connect. Nothing happens. I am not able to connect to VPN at all. I tried using kvpnc as well but it didn't work either.
View 1 Replies View RelatedI use VPNC to connect to a Cisco VPN. I am able to connect, but some issues exist when I use SSH. For example, I login through SSH to a computer in the VPN and I execute ls => it works. If I execute ls -la => connection stalls. I think it stalls every time it is supposed to return more content (top, ls /etc).
If I do scp from my end to server => works. If I do scp from server to my end => connection stalls.
I am looking for a softphone that I can connect over a client VPN to my cisco uc520. It works great in windows. Does anyone know of one that works? Cisco doesn't seem to have one that runs in linux.
View 3 Replies View RelatedI have a desktop PC running Ubuntu 9.10 and Windows 7, and a Eee PC 701 laptop running EasyPeasy Ubuntu 9.04. I'd like to connect the desktop to the laptop with a wired connection (eth0), then the laptop to my ADSL router using wireless (ath0).
I have a crossover ethernet cable (I bought on ebay). I have set up my laptop with a static IP address on my LAN and it uses OpenDNS.
I have added this to /etc/sysctl.conf on the laptop:
net.ipv4.ip_forward=1
Then I tried this on the laptop:
sudo iptables --table nat --append POSTROUTING --out-interface ath0 -j MASQUERADE
sudo iptables --append FORWARD --in-interface eth0 -j ACCEPT
This is a variation on what I found on other sites describing how to set up a router. I don't understand iptables very well, but I gather that the above two lines should set up forwarding so that traffic from my router to the laptop will be forwarded to the desktop, and vice versa.
But this doesn't work. The connection doesn't even establish between the laptop and the desktop.
When I try to connect to my company's VPN using the Cisco VPN client, I get a kernel panic. Please don't suggest I should Cisco's client, it only works with Kernels older than 2.6.24 (I have 2.6.35).
So I use vpnc. The error message is:
Quote:
$ sudo vpnc
[sudo] password for phirt:
Enter password for user@group@fubar.net:
received notice of type (ISAKMP_N_NO_PROPOSAL_CHOSEN)(14), giving up
vpnc: quick mode response rejected: (ISAKMP_N_INVALID_MESSAGE_ID)(9)
this means the concentrator did not like what we had to offer.
Possible reasons are:
[Code]...
Environment
Linksys WRT54G Wireless
Laptop wireless Windows/XP
Windows/XP Hyper Terminal
Desktop Server Linux OEL 5 (not wireless) cable connected to the WRT54G router port. (I can go to the Internet with this server, but not able to communicate other computers on the WRT54G Wireless Network. Even though, the Linux Server is connected to the WRT54G router port.) From the Hyper Terminal Wireless laptop Windows/XP, I want to connect to my Linux Server.
i got the new Ubuntu 10.04 and manage to get my cisco aironet wireless adapter 340 series working on my wireless dlink modem , but the problem is when i have the wep security on the modem the cisco wont connect
View 1 Replies View RelatedI'm setting up my first Linux laptop with Ubuntu 11.04 and my CB21ag wireless card works, but won't achieve speeds over 11Mbps (maybe not "doing 802.11g rates for some reason?) I guess this cardbus card is manufactured by Atheros for Cisco so I maybe that's why I'm seeing two wireless connections - the one with the "airo" driver gives me 11mbps, the other with the ATH driver would only get me 1mbps so I deleted that. The card seems to disconnect/reconnect periodically too - messages pop up frmo the wireless icon ...
lsmod says "airo" and "ath5k" are loaded
So to get 54Mbps (802.11g speed) I'm wondering if theres maybe a different driver module for the CB21ag card or some configuration I need to tweak. More info - security is static WEP, lshw -C network returns some "wierdness" about network 0 ?
-laptop:~$ lshw -C network
WARNING: you should run this program as super-user.
*-network:0 DISABLED
description: Wireless interface
product: Cisco Aironet Wireless 802.11b
[code]....
Cisco vpn client would freeze the system. The only way to recover is to do a hard reset. The funny thing is I had it working before, so it may be random. However, it just happened 3 times in a row and I haven't tried again. I'll try again tonight. I'm pretty sure I'm running the latest client for 64bit linux systems. I'll confirm that when I get a chance, as well as my kernel.
View 7 Replies View RelatedI am looking for a open source system to manage the cdr files generated by the cisco call manger. I have found a couple of systems but they are too costly.Is there any cheap or free software that can build a solution for this purpose.
View 1 Replies View RelatedI am trying to setup CentOS server 5 with tftp where the Cisco switch configs can be sent. I have the following:
[code]...
I am trying to setup a dhcp server for my internal network. I have two NICs, a modem, and a wireless router. I have my server connected directly to my modem which is providing me with Internet access on eth1 and is working fine. I have dhcp and dns setup on eth0 which is connected to my router. The router shows that it is connected to the Internet but when the router gives a client computer an IP address, the client is unable to connect to the Internet but can connect to the router. I will post my configuration files below with my current configuration.
[Code]....
I am thinking of moving the router behind a server and connecting the server directly to the internet via a modem. Are there any security issues related to doing this? or other things I should be aware of. Iptables are implemented on the server blocking access on unused ports.
View 2 Replies View RelatedMy son lost his USB Wireless stick for his Computer. I had thought I heard that if you had a second wireless router, you could use it somehow to detect the wireless router you have already set up in your home (like using a wireless card)? Is this what Ad-Hoc is? Either way, can this be done and if so how? I use a WRT54Gx2 Lynksys router and have a TRENDNET TEW-432BRP wireless router and also a spare D-link DI-514. I use ubuntu 10.04, and also wanted to know if I connected one of the router to his on the LAn port could he connect msaybe through an Ad-Hoc on my local computer here? He uses XP on his. I'm a newbie to linux and networking in general.
View 2 Replies View RelatedProblem with fedora 13, I am no longer able set up a virtual private network using vpn. The following error message appers:
"/usr/sbin/vpnc: no response from target"
No problem when connecting with ubuntu or windows.
I Install the redhat linux and ubuntu on a vm ware. I tried to test their Internet connection but the redhat cannot connect. What would be the possible cause why redhat cannot connect to the Internet?
View 5 Replies View RelatedI've two networks (network 1 in the apartment, network 2 in the basement/server room) I would like to build a vpn connection between the two networks. In networks 1 I have a 24h running PC/Firewall/Debian Server. For network 2 I would like to buy a RVS4000. Is it possible to connect the two objects (Debian and Cisco)?
View 2 Replies View RelatedI have set up one Fedora 10 server.I found that rsyslog service is running on Fedora 10 server.How to configure rsyslog on Fedora 10 to collect the log from Cisco ASA5510 ?
View 2 Replies View Related