Cisco Infrastructure :: 5510 - Equivalent Of Netstat Command On Router
Jul 30, 2003
Is there any way to see on what ports a Cisco 5510router is listening to just like a "netstat -an" on UNIX would do. I could easily do a portscan to give me this report but would prefer having the information through a show command.
I was using command prompt and typed in netstat -a to see opened ports on my XP computer. Then I found a weird result I have never seen it before.
It was Proto local address Foreign address state TCP myXP computernameort# 192.168.1.1:domain Fin_Wait_2
What does this 192.168.1.1:domain mean? I believe 192.168.1.1 is my gateway router, but why it says :domain? few minutes later, I typed netstat -a in the command prompt to check it again, but it wasn't there anymore. does this mean my computer is on a domain network or something? As far as I checked, my computer doesn't seem to be on a domain network, but I just don't know what it means.
Transitioning from 3825 to 3945 (OS is 15.0(1r)M13 c3900-universalk9-mz.SPA.151-4.m4). Turning on FDL on the 3825 was easy but the same command on the 3945 doesn't work.
Earlier today I ran a netstat, I hadnt use the computer for almost an hour so I was suprised to see that multiple connections ('Time Wait') to my router 192.168.1.1 had been made. I dont understand how that could be since I had not logged into the router for some hours.
I'm having issues trying to dial into the network via ISDN. Setup is
1. Users dial in via ISDN PRI/BRI or POTS.
2. Users using PRI/BRI don't have a problem
3. Users using the POTS modem way are getting disconnected after approx 5 seconds
4. Debug shows a disconnect cause '0xF Loss of DTR'
5. The running config is exactly the same as that of a working 3725 (out of support that's why we're moving to 2911)
6. Only difference is in the AT Command set modem settings where registry S25 is set to 5 on the 2911 but 0 on the 3725
Problem I have is that when I change the registry setting on the PVDM it is accepted, but as soon as I disconnect my reverse telnet session from the line, it reverts back to the default of 5. How do I save the registry S25 setting so that it won't revert back?
I have changed the settings then carried out a at&w - which made no difference. I have also carried out the at&y0 after changing the settings but again, made no difference. I can't find anything on this page Link that shows how to save the settings (but then again, it could be I can't see the wood for the trees).
I used to be able to set an uplink port with the interface command "port network" so that it would not learn all the mac addresses that are being flooded down to the switch. It does not seem to be there on the 2950's or 35XX switches.
Where did it go and what is replacing it? Interface is a Trunk port as well.
I've recently been taking an interest in netstat and learning how to use it,since a friend of mine has had trouble with his wifi he has speeds of 60mbps via Ethernet but wifi is slow i though that was odd and so tested my laptop on his wifi it seems i have the same issue so i'm wondering if my netstat is looking ok or if i have too many connections that shouldn't be there?
We recently upgraded our bandwidth and I have to change the ip address on our ASA 5510. I just want to make sure that I am doing it right. All I will need to do is open up the ASDM and under confiugration go to interfaces and make the needed changes to the outside interface. Then under routing I will make the gateway IP change on the outside interface.
I have a 100mbps internet connection from my ISP but once the connection hits the ASA the download speed gets reduced to 15mbps. My network is setup as follows: ISP Modem ---- Edge Switch ----- ASA --- Internal Cisco Switches
If I plug my computer into an extra port on the Edge Switch I get speeds around 92mbps with normal traffic still going to the ASA. But when I plug into the ASA and internal switches I have speeds of 15mbps.
I have made sure that duplex/speed match on the links. I have done packet captures and within two minutes I do have several dup acks and retransmissions. The retransmissions don't seem to match the dup acks. (The retransmission is not for the dup ack requested so the dup ack keeps being resent)
The only interface error is on the inside interface which includes 700 overruns in a weeks worth of time.I am not using an IPS/IDS. I do have several vpns on it but was not going through a vpn tunnel. I am also using NAT.I am using an ASA 5510 8.2(1)
I am wondering what is the TOS value equivalent to DSCP value AF31? I am wondering what is the TOS value equivalent to DSCP value AF31?I have tried to use the charts but I couldn’t understand how to convert it.
I found this sentence in 1552 AP guide."AP1552 comes only in the Bridge mode and the mode cannot be changed. A mesh access point performs CleanAir function and also serves clients on the assigned channel similar to the way the Cisco Indoor CleanAir AP3500 (nonmesh mode) operating in LMAP mode serving clients on its assigned channel. The mesh AP also monitors the spectrum only on that channel."We want to use this AP as a local AP ( not for mesh deployments) and serve our wireless clients. The main thing why we need this is just operating temperature. Is it good choice? Does it will function as "normal" local AP or we will have any problems , because of that "mesh" mode?
I have been asked what the equivalent of bridge-groups and BVIs is for an ASR1001 and I am struggling to find an example.If we have this IOS configuration:
I need configure a VPN site-to-site between two offices (Office A e Office B)The Office A (headquarters) have a Router CIsco 5510 and we have approximately 200 employess?
The Office B (branch) dont have any cisco Router but we will buy one ( is a small office, we have aproximadaly 20)?So I need configure a VPN site-to-site using the IPSec (do this is easy), but i need control the computers in the Office B that can access the Office A.
I Think that I can use a acl using the Mac Address to control, but how can I apply a control access List by Mac Address in the VPN site-to-site that is configured using a IPSec?
Is there other form to control the access of the Office B to Office A? We have a big fear for example, a unknow computer connect in the Office B using any mode off access (Ethernet cable, or Wirelless), and this "unwanted" computer access the Office A.
Are the IOS commands the same on a router and a ASA for these two topics....CBT Nuggets where I train has 553 videos for some of the new topics. I am preparing for 554 as it has more ASA focus and thats more interesting to me.
I recently obtained a 2851 and have been battling this issue for a week now. An odd set of circumstances happen with the bootstrap startup process. If the router has loss of power or when reloaded; it fails to read the CF card and boots to rommon. I can tftp an image to it (tftpdnld -r) and IOS CAN read the flash card along with any saved configuration.In fact once in IOS, I can wr mem and print the hardware details of the CF card. Once I reload the router it goes to rommon, fails to open the flash, then sits until i tftp the image back. When the router load IOS, it also loads the startup config.I don't think it's a problem with the CF card as IOS can read it. I've tried formatting the card from IOS and from my pc as FAT, FAT16, FAT32, and NTFS - it didn't make a different. I updated the ROMMON to allow for USB booting but haven't purchased a USB Drive yet for testing. The upgrade didn't resolve this issue either. It almost seems like a firmware problem with the EPROM.
We are having problems configuring NAT on our Cisco 1921 Router. Below is the running config. The problem we're having is for example our FTP server 192.168.1.16, cannot be accessed from its outside IP address, which is NATed on the router. The server is verified to be up and running and when we do a show debug ip nat, we see the router is translating outside users attempting to access the ftp server to it's correct internal IP address.
trying to upgrade an 1811 to the latest firmware. [code] just seems to always boot back to the original file and not the one i just tftp'd up. could it be that this router requires additional ram to support this ios?
Suppose a broadcasted IP packet reaches one of the integrated RJ-45 ports on a 2911 ISR G2, will it be possible to configure the router so that the other integrated RJ-45 ports, ESM/EHWIC modules installed on the router, as well as the MGF also recieve the packet? Technically, the router should act similar to a switch with the SRE behaving similar to a seperate machine connected via the MGF and other external machine connected to the ports of the router to recieve the broadcasted packet.
Also, if SNMP traps were generated from the router,Will it be possible to send the traps from the router via the MGF to the SRE installed on the router?
I have the following network connected and configured to a single Cisco 1800 router.
VLAN 2 (10.1.20.0/24) | int vlan2, ip address 10.1.20.1 | Cisco 1800 ----- int fa0, public ip address ---- Internet | int vlan3, ip address 10.1.30.1 | VLAN 3 (10.1.30.0/24)
VLAN 2 is server vlan with a webserver. VLAN 3 is clients.
NAT configuration: VLAN 2 and VLAN 3 is using NAT to access the internet, and both is configured as inside interfaces.fa0 is configured as outside interface. Now I don't know if this is about NAT, but I've tried several things without luck.
Problem: A client in VLAN 3 tries to access a domain on the webserver in VLAN 2.It starts by sending a DNS query to a DNS server located at the ISP, and gets the ip address for the domain, which is of course a public ip address. Then nothing happens because the client tries to access the domain on the webserver using the public ip address, and the webserver have a local ip address 10.1.20.20 which is on the local LAN (VLAN 2).
I've tried NAT because I have to change the destination ip address, but I can't seem to get it right.