Routing

We are currently trying to move all our P2P T1's from multiple 3600's to one 3925 in our data center. The offsite has a 2811 with data-coding inversion on it connects to our data center on a 3660 and is up. When I move it to our 3925, data-coding inv...

Hi,I have two routers directly connected. I can ping the interfaces IP addres, but can´t ping between loopbacks. Thks

hi,so I have this setup going in gns3.I have a spoke, at first it was connected to 2 hubs with a gre/ipsec tunnel per hub so 2 tunnels on the spoke running with eigrp. It would get a 0.0.0.0 defaut route from both hubs but with an offset list I would...

Hello. Is there any solution to divide IP ranges/VLANs without changing servers IP?\Many thanks

   Hi,I have configured EZVPN server configuration on Cisco 877 Router and EZVPN client on cisco 1801 router.But when the vpn connects I lost internet connectivity and can not browse the web.Also couldnot access remote site internal network.Here is t...

Hi,If i apply this command to a trunk port which connects to switches, and it reaches to limit what is the action? switchport port-security limit rate invalid-source-macdown the link  OR drop invalid mac-addressed packets?Thank you.

Hi!Now we are using Cisco 7201 routers to terminate ISG IPoE sessions (subscriber interface). For some sessions, we use Netflow activation through the radius (CoA). For the downstream subscriber traffic radius Netflow activation was realized by assig...

I have been getting in 1900 series routers and they are coming with a 1Gig usb drive.  What is this used for?  It looks like it just gives it extra memory but what would I use it for except maybe a backup for the IOS?                  

I have one question for OSPF DR/BDR electionConsider 3 routers all with the same default priority 1 but different RIDsRTA = 1.1.1.1  RTB =2.2.2.2  RTC =3.3.3.3All routers come up at the same time.RTC - DR and RTB -BDR.Now,another router D with router...

Greetings,   I have a 2851 and a 1841 both serving as hub routers in a GRE multipoint configuration.  They are both receiving buffer misses and failures on startup.  I will post the output of show buffers below:LAB-HUB-RTR#show buffersBuffer elements...

I’m having problems with a Cisco 877W router connected to Zen Internet in the United Kingdom; what I see happen is the router boot up, establish a connection (CD light on, PPP light on) and then after a random period of time drop the connection (CD l...

HiWe have come accross multiple messages:%C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: (Suppressed 2608 times)Packet received with invalid source MAC address (00:00:00:00:00:00) on port Gi4/11 in vlan 135and %PORT_SECURITY-2-PSECURE_VIOLATION: Security vi...