I am researching frame relay for our organization and am a little confused by VPN methods. What is the difference between establishing a VPN connection at layer 2 versus layer 3?
We're configuring port E0 with an internal and external ip - the models we've seen have the public ip as secondary. Is there any importance to that set up?
I'm having problems with a Catalyst 2950 48-port switch with the standard image and auto-negotiation. It takes about 30 seconds for the clients and the switch to successfully auto-negotiate a connection. Has anyone else seen this problem?
I have a catalyst 7609 with 12.2(18)SXD3 IOS verion .Recently , I got a error message in log server , below：01:37:54: %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x601597F8, alignment 16Pool: Processor Free: 26616 Cause: Not eno...
I'm trying to configure static nat in this way:fa0/0 - 192.103.83.100 - nat outsidefa0/1 - 192.168.40.254 - nat insideI need to access ip 192.168.40.100 from outside to inside using a different ip address, so i configuredip nat inside source static 1...
Hi,does anyone know why my catalyst 6509 is stripping the dscp information out of the ip header. Setup is as follows: Alcatel IP phones connected to on of eight 4507s floor switches which are connected to a pair of 6509s running ospf on the uplinks.M...
We are planning to upgrade our network infrastructure. But we are thinking if we could use 6509 as our core switch for WAN and LAN instead of using 7600. Is this possible? What are the pros and cons if we setup our 6509 as our core (for LAN and WA...
Hello,I'm troubleshooting intallation of a fractional T1 circuit. I'm working with the worst ISP on earth they have pretty much told me I'm on my own. They are refusing to help so I'm trying to do some troubleshooting to either figure out the probl...
I have a 6509 switch that when I do a show IPv6 interface command, the following is displayed.LI-Null0 is up, line protocol is up IPv6 is enabled, link-local address is No global unicast address is configured Joined group address(es): MTU is 150...
I'm considering about the following network.PC1-----L2SW------Router-----PC2PC3------+PC1:Multicast receiverPC2:Multicast senderI configured mulicast and igmp snooping on Router,L2SW.In this situation,PC2 sends the multicast traffic of 234.1.2.3.Rout...
two pc are in the same vlan and both directly connect to 2950,when ping form one to another ping 192.168.0.1 -t -l [arg]when [arg]>1500 ,ping packet lost. But two pc connect to a HUB,ping packet is ok.who can tell me why? Any command can solve the pr...
Suppose a native IOS 6500 configured with layer3 (no switchport) ports and subinterfaces (under subif: encapsulation dot1Q 40 and IP address configurede.g.) connected to access switches. I want to change this design and create vlan 40 on 6500, change...
Hi all, I came across the above mention CAT 4003 module. I wanted to know if this module is a routing module. I tried searching cisco's web site but was unable to find any info on this module. Could someone please advice me? Thanks a lot.Regar...
Hi,here is the description of 2 routes to the same subnet : question : why does the router use the route with the highets feasible distance : the route from 173.16.2.21 has a lot lower metric...Thank youZidane#sh ip eigrp topology 172.16.9.160/27IP-E...
