Other Network Architecture Subjects

While analyzing network traffic on one of my subnets, I recently started noticing the following messages coming from my active and standby routers that are performing HSRP. Checksum: 0x0DD5 Checksum invalid. Should be: 0x66D8 What does this mean? Is...

The SHOW IP OSPF DATABASE output reflects the specified network, whereas the same is not getting installed in the routing table. Please throw some light on this.

I'd like to change bandwidth of my serial interface, I have this information about the interface.MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,reliability 255/255, txload 41/255, rxload 4/255.May I change it in <config-if>bandwidth xx ?

Hello,Is it possible to route a packet based on the source & destination IP address combination? I'm wondering if there's anything beyond routing based on source IP and/or protocol.Thank you.

Hi,We run an ISDN network with Dial on Demand, using the callback funtion to start up links.We have an intermittent problem where the callback function fails. E.g someone in a remote site starts a Metaframe app (one of our kickoffs) but it fails to c...

I have to set-up dial back up for our Oregen office. currently they connect to us via a full T1 (Frame Relay).If that goes down, then they need to connect to our HQ office via isdn.Oregen currently has an 2 ISDN BRI's connected to a 3640 for their re...

hi,I have a small question, can i use dhcp with multiple vlans,if yes then how.with regardsmanish young

I would like to connect a small remote office (3 nodes) over SM fiber to a main office that has a Catalyst 4006. Any thoughts on what to buy for the small office? I don't really want to have to overdo it with a big 24port switch with gig uplinks. An...

If I have a router running RIP and it's being fed routes from (2) routers that are both 1 hop away, how will my router route the traffic? Will it load-balance? Do I need to configure my router to listen for equal-cost routes? Is there anything I n...

what does the route-map command accomplish?

I configure a cisco router to send syslog back to the RME with following;logging onlogging <RME server iP>logging trap notificationsThe server is a solaris 8I can see the syslog captured in /var/log/syslog_info.However, when I tried to create report,...

I have 4 * css11050 switches within our infrastructure. Currently ( for security policy reasons) we dont not remote management or visability of these boxes and need to address. What is the recommended software management tool and can it bolted into...

I have an Inmarsat-B with satellite service on a ship. Do you know how I can set-up dial-on-demand with a 2500-series router? The current system required a line card that is no longer available from the manufacturer....Now we have to use a RS232 conn...