Search results for query: *

It doesn't look to me like you can give a subinterface a mac address, the "mac-address" command is not listed as a possible command.

Oops, I realized I had a typo here. What I should say is, I want to assign multiple MAC addresses to the WAN port (or a VLAN interface).

I have a cisco 1811 connected to a wideband modem. I purchased a block of public IP addresses from for some web servers on site. So I go to set it up using reverse nat like I normally would and nothing works. Turns out that on the ISPs side everything is operating at Layer 2, so the public IP...

I have never set up a GRE Tunnel before so I was hoping someone could look over my configs and tell me if I have grasped all the concepts correctly. What I want is for regular public internet traffic in each site to still be able to go out the T1, but then to route all the private traffic...

Ah, the loopback makes more sense now. When using the "ip-unumbered" config, how do you make sure that FastEthernet0 gets the IP address associated with the modem it is connected to and vice-versa? I am going to have to go for load balancing over redundancy, since the line was purchased to...

Yes, the two links have the same bandwidth, and I have 5 private subnets. First, I found a flaw in my pool idea above because you can't give two wan interfaces IP addresses that are on the same subnet. How I'm making both lines work currently is by having the modems do NAT and connecting...

burt, haha, don't worry, I remembered the default route change. Isn't your solution essentially the same as just plugging FastEthernet0 and both modems into a layer 1 switch? Though I don't know how the nat will work with an interface with two IP address. Will the nat just round robin...

I have a branch office that has a basic consumer aDSL line from Verizon. The modem that Verizon provides (other than just being cheap and useless), will only do NAT for devices on the same subnet as it. To fix this, I had a spare 1811 in the office and I just plugged the modem into one of the...

What is FastEthernet0/0 trying to get DHCP from? I'm assuming it is connected to a cable internet modem or dsl router in bridge mode?

Normally I would agree, but every time I get a few errors I'm getting complaints about voip drop outs. At first I thought it was a QoS problem because it only seems to happen during high load, but even after I increased the reserved bandwidth for voip I'm still having phone issues. I've...

ISPKing, can you please explain to me how you drew this conclusion? Thanks.

What do you mean by "hard errors"? Here is a show controller for each: Router #1 Interface Serial0 Hardware is PowerQUICC MPC860 with Integrated FT1 CSU/DSU module TX and RX clocks detected. idb at 0x8391C95C, driver data structure at 0x83924078 SCC Registers: General [GSMR]=0x2:0x00000030...

yes, it is a point to point t1 line. I have done a show interface on each end and I can see that errors are occurring, but I'm not sure where to go from there. Router #1 Serial0 is up, line protocol is up Hardware is PQUICC with Fractional T1 CSU/DSU Description: PTP Internet address...

I have a PTP line between two buildings with a 1800 series Cisco on each end. I graph information from each router using snmp. Lately I am seeing packet discards on my interface graphs. I think this problem is due to overstuffing, but I'm not certain. What is a good method of figuring out...

Thanks, which manual are you looking at? Ok, so now I have more questions. I have two buildings connected by a T1 PTP. Building A has the phone controller. I've been having users in Building B complain about calls dropping and low bandwidth messages on their phone. I look at the QoS configs...

I've been reading about your basic QoS setup for VOIP on cisco IOS and I have a question. In the examples I tend to find they say to use a method similar to this: For SIP/IAX/IAX2: !signaling traffic access-list 101 permit udp any any eq 4569 access-list 101 permit udp any any eq 5036...

I have a 1700 and 1800 series. A question about a GRE Tunnel that I didn't think of before. If I set up a tunnel on an internet line, can that line only be used for the tunnel and not other normal outbound traffic?

unclerico, could you recommend some good reading on setting up a GRE over IPsec tunnel? Cluebird, I don't think what you are suggesting is correct, or you are misunderstanding what I'm asking. If you look at my example again for the routers: Router in Building A has public IP 1.1.1.1 Private...

Thanks for the suggestions, I've never set up a tunnel before so I think I'll try PAT. Honestly though, I am kind of confused about how this will work, since in essence, I need to go from private IP, to public IP, to private again. If I go back to my example of: Router in Building A has...

I have two buildings, lets call them A and B. The buildings are connected by a T1 PTP. Each building also has a few public internet gateways, so all the users in Building A reach the internet through the gateways in Building A and vice-versa. Occasionally, the PTP between the buildings goes...