Routing

In our datacenter we use a PRI network module to dial into remote BRI lines to bring remote sites up on backups.Today while checking our core router (2811) the command "show isdn active" shows a call that has been active for +86576 seconds. I logged ...

Dear All, I have open my 25, 110, 80 port on my Server from local i can telnet all those via my private ip but from public ip its not responding. 2nd thing I can ping both ips of My server through private ip and through public ip. Any help to solve t...

Hi ExpertsHow to secure a BGP border router connected to upstream ISPs against DoS and DDoS attack and other attacks which exist out there in order to protect my customers since our border represents the fit..we receive just a default route from ISPs...

Hi,My entire switching network is enabled RSTP and I have purchased a new cisco 3560X series switch and I have not found RSTP feature in my switch.Is it available if I change the image? will cisco switches supports RSTP? Thanks,Ashok Kumar.

Hi, I have a 887W and would appreciate help sorting out a NAT question.interface Dialer0description $FW_OUTSIDE$ip address 165.228.87.236 255.255.255.0ip nat outsideip virtual-reassemblyzone-member security out-zoneip nat inside source list 100 inter...

I want QoS in/out on an interface based on three priority levels, limiting (not by B/W or % Interface), but simply by service-levels if contention exists.Say: if contention exists, P10 gets the first right of way, P20, gets the next right of way, and...

Hi,I have a network with a few mail servers, and I'm trying to prevent outgoing SMTP traffic from using all of our bandwidth and therefore interrupting other services such as web, ftp, etc.Mail from all servers is sent through a filtering appliance, ...

Lets say you have ISP1 and ISP2. These are two different ISPs not redundant connections to the same ISP.If you're wanting to run BGP, would you get one AS or two AS.How would that work?

Hi,Have an ipsec tunnel working for a branch campus without problems for over a year. Clients come back direct to main campus, if destination is off campus, then go direct out to Internet without coming back the ipsec tunnel. Configuration is attache...

Hi Did the ASR1004 SIP-10 supports 4 SPA-1X10GE-L-V2 per SIP slot 0 ,,, and another 4 SPA-1X10GE-L-V2 per SIP slot 1?thanks Ibrahim jamil

Hi,    I have a question in mind and its about bandwidth management. Its that say we have a 10mbps link from an ISP and we(enterprise) want to give 5mbps to Sales department, 3mbps to marketting dept and so on. Is it possible and if it is then is it ...