Routing and SD-WAN

Is GRE tunneling technique for IPv6 based on RFC2473 or Cisco proprietary standard?

I have a 3725 router that is reporting the following syslog message: %FAN-3-FAN_FAILED: Fans had a rotation error reported. When I do a show environment all, I am getting the following message: Fan status:Warning- low fan rpm condition detected. Both...

i have a router 1841 series and LMS send me  amessage telling me the VPN AIM is not working on thsi device and i want to check the status of this VPN card

I can ping across the tunnel from the pc's on either end of the tunnel, but I can't ping across the tunnel from the routers. If i ping using the source command using the LAN interface, the ping is successfull.The reason i need this is for the remote ...

I tried to telnet my cellular interface but it didn't work. It showing refused by remote host. Need your help please.interface Cellular0/0/0 ip address 192.168.81.78 255.255.255.0 ip nat outside ip virtual-reassembly encapsulation ppp dialer in-band ...

Hi EveryoneI hope U are  doing wellI have  one strange problemAs U know cisco  feature for frame-relay  is creating mfr link and binding them to  physical interfacesI did so but my MFR links doesn't get upwhts wrong in the configuration shown below?T...

Hi experts,i am trying to create three classes as follow but i am getting a errorthis is just for exampleclass-map voicematch protocol rtpclass-map webmatch protocol httpclass-map AVmatch protocol bit-torrentspolicy-map HARIclass voicebandwidth perce...

Hi All,I did a little bit of re-configuring in my lab and came up with a problem with two NM cards.Both cards are labeled as NM-4A/S on the back panels. From cisco.com, both should work in my 3620's and 2651XM'sBoth cards work in the 3620, but one of...

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I have configured NAT on the router and can ping all the way to the cable modem from a laptop through the 2621xm, but I cannot get the internet.  I am posting the configs.  Can anyone see where I have missed something? This is a cable modem and a sta...

Hello all!I have the following setup for VoIP at my place of business (educational):1 - UC520 (VLAN 100)1 - ESW-48P PoE Switch (VLAN 100)1 - ESW-24P PoE Switch (VLAN 100)24 SPA502G Phones (VLAN 100)1 Valcom SIP IP Speaker - VIP-410 (VLAN 1)1 Valcom S...

I've been reading about about QoS over GRE/VPN tunnels, and I want to make sure I'm understanding things correctly and taking the right approach.Here's my example:Site A - 10.1.0.0/16Site B - 10.2.0.0/16Routers on both sides are set up like my lovely...

Hi,Im preparing for CCNP ROUTE exam, and in the official book ciscopress the formula for EIGRP is something like this:256 * ( ( 10.000.000 / slowest band along the path) +  cumulative delays)But, in CCNP library before 2010 and the new release of exa...