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How do you handle public DNS for dual ISP's?

I'm trying to setup a second ISP as a backup link in case my main ISP goes down. How do you handle the public DNS records so my website is accessible if ISP1 goes down? Basically this is how I thought I needed it setup. LAN1 -----                    ...

Resolved! Frame Relay - cant ping across serial

Hi All,I have 2 routers back-to-back in my lab.  I'm trying to configure Frame Relay.  For now I'm just trying to ping from 12.1 to 12.2 but it's not working.  The serial interfaces on both routers are up and up.  And prior to implementting Frame Rel...

IP-SLA: send more ICMP within each interval

I have a cisco 7600. It will send an icmp request every second. If the icmp response is not received, 3 consecutive icmp requests will be sent. SLA reachability down will be reported after all 4 icmp responses are not received. The following diagram ...

Exchange Client Traffic and QoS

What do you think about throttling Exchange client traffic via QoS policing at WAN router.  Basically, the Exchange server is at a datacenter with the following configuration on the datacenter WAN router:policy-map class Exchange  set ip dscp af11   ...

IPSEC 2811 to ASA 5510

I have a 2811 that is my HQ router with a 10MB pipe.  I was trying to configure a IPSEC tunnel to connect to my ASA that has access to our companies internal servers on the 10.33. and 172.16.31 network.  I am having a problem getting phase 1 to even ...

leelove01 by • Level 1
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  • 6 replies
  • 0 Helpful votes

show crypto isakmp sa empty

I can ping and NAT is working.  I've built the phase 1 and 2, the ACL several times using access-list and ip access-list extended and double-checked both routers.Other than that, "show crypto isakmp sa" just gives:"IPv4 Crypto ISAKMP SAdst           ...

umbernaut by • Level 1
  • 8581 Views
  • 8 replies
  • 0 Helpful votes

Resolved! Bridging across point to point t1

I have a situation that's going to require me to bridge across a t1 link. The subnets are the same across the link. I'm trying to configure bridge irb and the serial interfaces are up, but I can't ping between inside interfaces on the 2 routers. This...

Path Code Violations Trickle

I am getting a small intermittent trickle of path code violations on a router interface.  Sometimes, a 24 hour period will pass with only 2 - 6 violations and sometimes none.  As an example, over a 5 day period, I received 14 path code violations (wh...

Trouble seeing one router using Rip 2

Hi.I have 3 routers (2 2621's and 1 2620xm).The two 2621'1 are connected to serial Interfaces on the 2620xm.One of the routers Is also connected to a switch(s0/0 192.168.6.1 .I have clockrate enabled on the 2620xm for both Interfaces(s1/0,s1/1 192.16...

Reprovoid by • Level 1
  • 507 Views
  • 3 replies
  • 0 Helpful votes

Resolved! BGP, splitting an AS

Hello,I have a quick query that I'm hoping someone can help me with.I have a /20 block of public IP addresses, currently located in a data centre in Amsterdam. I am now setting up a new hosting centre in New York, and I want to move a /21 portion of ...

Resolved! a problem with cisco 7604 router

Dear All, i am having a problem with Cisco 7604 router with SUP-32, i enabled logging buffered debugging and although that there is no logging appear when i write show logging when interface up or down only logs for %SYS-5-CONFIG_I: Configured from c...

Resolved! Link 2801 to Comcast Cable Internet

Got my CCNA PT 1 test passed and I'm hyped on Cisco!!!! Got my hands on a 2801 router and a DOCSIS 2.0 HWIC.  I want to make sure the Comcast yahoos that are coming later this week just have to plug in and go.  Thanks for any help in advance.  Here's...

DHCP

What is the advantage and disadvantage using dhcp? ThanksSent from Cisco Technical Support iPhone App

Ingress Traffic Engineering and VLSM

I am not familier with the Policy's of ARIN as it pertians to the use of VLSM. If an organization is issued an allocation range, lets just say its a small allocation of /24, are you allowed to multihome the advertisement of that /24 out of two locati...

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