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  • Cisco 1721 IP NAT error preventing users from access the internet

    I have a Cisco 1721 series router that for some reason will spontaneously prevent some users from being able to get onto the internet. It appears there is some problem with dynamic nat'ing as a given user will just not be able to get out on the internet but they can ping the routers LAN interface...
    Posted to Routers (Forum) by hardware on 03-03-2010

  • Cisco 3600 Route-map to backup ISP

    We have a cisco 3600 connected to UUNet over a T1 (Serial0/0) as the primary ISP and as have 128 ip addresses (65.222.118.x) from them. We also have a Cable Modem (FastEthernet1/0) with a single DHCP address using a ethernet connection as a backup. The backup works correctly using "ip route 0.0...
    Posted to Routers (Forum) by hardware on 09-21-2009

  • Cisco IP Ping problem past gateway routing

    I have Cisco 1841 router (config below). Everything is working except one problem. The machine at static IP 192.168.1.100 cannot ping past the Cisco ip 192.168.1.1 It can ping all resources on the local network but none on the internet or on their VPN tunnels that are setup. This config was done last...
    Posted to Routers (Forum) by hardware on 08-28-2009

  • Can't turn off telnet on Catalyst switches running catOS

    I am trying to disable telnet on on switches running cat4000 catOS and use only ssh. Here is the result of the 'show ip permit' statement: Snmp permit list disabled. Ssh permit list enabled. Telnet permit list disabled. Permit List Mask Access-Type ---------------- ---------------- ---------...
    Posted to Routers (Forum) by hardware on 08-22-2009

  • Needing Instructions for Configuring IP Address Range within a Linksys 802.11 G Broadband Wireless Router (Model WRT54G)

    Hi Everyone: This question is basically an extension of an already opened post regarding possible solutions to resolving IP address conflicts among network devices. One suggestion given was to expand the IP Address range within the router. I understand I will of course need to log into the router given...
    Posted to Routers (Forum) by hardware on 08-10-2009

  • IP HELPER VLAN INTERFACE

    Put the ip helper-address on the vlan logical interfaces. Example: interface vlan 10 ip address 10.10.10.1 255.255.255.0 ip helper-address 10.10.200.1 interface vlan 20 ip address 10.10.20.1 255.255.255.0 ip helper-address 10.10.200.1 i got this advice before but i want to know where to put the ip helper...
    Posted to Routers (Forum) by hardware on 08-05-2009

  • Netgear Router, IP Routing.

    Hi, I've set up a DynDNS Account so that i can do some folder sharing etc over the internet, there's a reason for using DynDNS too which is not the problem here. My problem is that everything is setup as for as the DynDNS account is going, but on a particular part of the setup i hit a brick wall...
    Posted to Routers (Forum) by hardware on 08-01-2009

  • Cisco 878 : conflict between "ip nat inside source static" and "ip route"

    My 878 Cisco router does static port forwarding. Its local IP is 192.168.2.2. In my network, I've a second router (cable) on 192.168.2.3. Both routers are connected to separate ISP. Inside static nat is activated on the Cisco 878. eg. ip nat inside source static tcp 192.168.2.130 25 a.b.c.d 25 route...
    Posted to Routers (Forum) by hardware on 07-22-2009

  • Can I use a route map to route SLA monitor traffic out of a specific interface?

    Hi Everyone, I have a question which I hope you can help with? I have a Cisco 1841 acting as my core router(with HSRP to another 1841). Also attached to my lan(192.168.50.X/24) is a Zywall firewall (192.168.50.250). The firewall is my network D/G. What I want to do is use cisco's SLA monitor (to...
    Posted to Routers (Forum) by hardware on 07-10-2009

  • Passing DHCP requests via IP helper address

    I have a cisco 7204 router configured with a fastethernet 0/0 port that has 1 primary ip address and 3 secondary ip addresess. I've added an IP helper address statement pointing to the DHCP server, but I can only seem to pull an address from the primary interface addresses scope. The DHCP server...
    Posted to Routers (Forum) by hardware on 07-03-2009
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