Routing

cancel
Showing results for 
Search instead for 
Did you mean: 
cancel

Labels

Forum Posts

Dear All Please help me.. how when I only want to allow/permit IP Address xx.xx.xx.xx / 28 (Public IP) on Router and block all IPs coming from the internet by blocking ssh and telnet? Please help and thanks

Hi All, Please advise on the below. I checked and RST-ACK is like FIN-ACK to close the connection.. Question: 1)Without the (Fin-ACK) from 10.1.1.2, can 10.1.1.1 send (RST-ACK)? 2)If the above is yes, should 10.1.1.2 send (FIN-ACK) after (RST-ACK)?...

Hi all,  We are building a small Cloud DC and we need some Router that have BGP/GRE/mGRE speed from 1-2GBps and a Switch Layer 3 that will be compatible and will be as backbone. So what i like to ask is some suggestions and also i like to know whot c...

probly something simple i am not getting. I cannot ping out or go online. isp modem gives ip addres 192.168.0.5. i think ip route that is wrong. please advise Thank you  Last configuration change at 08:55:12 UTC Thu Nov 12 2015 by cisco!version 15.0s...

matabei89 by Level 1
  • 757 Views
  • 7 replies
  • 0 Helpful votes

internal flash volume appears to have failed which i'm assuming cannot be fixed but if you have a suggestion there I'd like to hear it.  I've moved on to trying usb flash disk for boot which works fine when commands are issued manually from rommon bu...

wayfaring by Level 1
  • 3947 Views
  • 8 replies
  • 0 Helpful votes

Hello, I have a small network based GRE-tunnels (IS-IS) When I add a new network device that should connect to this network using OSPF, the whole network and all GRE-tunnel goes down. Tunnels and network returns UP again after OSPF is turned from t...

I have depoloyed 2 catalyst 65k as a single entity VSS ; m getting the following error when saving the configration on the primary/local player. Dec  4 23:15:16.971: %PFREDUN-SW1-4-BOOTSTRING_INVALID: The bootfile s2t54-ipservicesk9-mz.SPA.151-2.SY2....

Free Bird by Level 1
  • 798 Views
  • 2 replies
  • 0 Helpful votes

Resolved! ACL question

Hello,    I have a question which pertains directly to access lists. I have a 3925 edge router and would like to block an external DDoS attack (attacking via port 123 [ntp]) to a specific server within our environment. All ntp attempts (dozens of att...

Finally persuaded and "forced" my work to move away from consumer grade Netgear router(the one you usually use at home) and use Cisco ISR.  I was recently hired to revamp network, etc. We have VMware/OpenStack environment with new people coming in co...

sendalot7 by Level 1
  • 890 Views
  • 9 replies
  • 0 Helpful votes