Routing

Can anybody explain me the function of the port 7 (echo)?What is it and how is it used?Thanks to read

When we talk about router implemented “protocols” (eg HDLC, PPP ) are we talking about hard code embedded into the router IC’s, which, when instructed by IOS coding, performs a specific task on data ( ie HDLC or PPP data encapsulation). Or is it part...

apologies if this is a reallly basic question (and it's one I definitely should know but seem to be having a mental block on!).If I have a 2600-series router with an ADSL WIC and I want a reliable failover/backup service for TCP-based alerts (mostly ...

HiI have a problem with GRE configuration. between router A and B there is 1 more router. all 3 router area under same ospf domain. after configure as belows, tunnel interface is keep flapping with error message "routing loop ...". can i fix this pro...

One of our cisco 7206VXR (NPE-G1) processor with ATM interface for DSL clients as route-bridged type is currently experiencing a High CPU utilization with 99%. From the cpu processes, we noticed a high utilization of ARP Input. Do you have any recomm...

Hi there,I just came across a small problem today. One of our remote offices is connected by an E1 line to our central site. The remote office has a 2621XM with an IOS 12.2(10b) and the central site has the same router with same IOS version. We want ...

Hi there I have a Cisco router which has 2 configured interfaces E0:201.139.xx.24 E1:200.201.xx.161 E0 has three hosts 201.139.xx.25(used) 201.139.xx.26(free) 201.139.xx.27(used) E1 has three host 200.201.xx.162(used) 200.201.xx.163(used) 200.201.xx....

Hi Attached is my network config where i need to give internet access to the LAN A users. At present LAN A users are using oracle on 64K circuit, the oracle server is on LAN B. I am using RIP.The problem is i can ping every PC in LAN B but not the In...

Hiwhen i configure 3 multicast routers with auto-RP, can i configure one of them configure with static.A.basic Mcast configureB. configure as RP with auto-RPip pim send rp-annouce lo0 ----ip pim send rp-discovery ----Cconfigure B as RPip pim rp-addre...

Hi all,can the 2610 platform support WIC ADSL?With the 'Software Advisor'if I chose hardware Manually I have no match ..but with IOS Upgrade Planner I have found the IOS (12.2(15)T Enteprise Basic) that supports it.So if I install this IOS is it all ...

I recently put an IOS access list on my 2600 router blocking TCP ports 139 and 445, which basically worked as advertised. An unintentional side effect of this access list was to disable incomming ICMP (ping) traffic as well. I have spent some time t...

removed some frame relay configurations from a 3640. when issuing the IP INT BRIEF cmd they still show up? also appears in the SH INT DESCRIPTION cmd? do i have to perform a reboot to flush?

I know this really isn't a Cisco question but this is the biggest audience I trust to answer this correctly? Plus any response I get could benefit other Network Admins too.We have several T1's for both Data and voice. We get $ .035 per minute long di...

One of our router rebooting it self and i got the following error:3660_lower uptime is 29 minutesSystem returned to ROM by bus error at PC 0x6058605C, address 0x9F00D0System image file is "flash:c3660-js-mz.123-10a.bin"Kindly advise