any suggestion for networktool
Hi all Any tool can help to collect destination ip in graph for different location? eg: Germany Thank you so much
need help about free bandwidth graph program
Hi all Do you know any opensource program bandwidthgraph by ipaddess? Thank you
can you share ipv6 addressallo cation
Hi all I am searching information about ipv6 addressallocation for /32 Any experience and advice can be shared eg: loopback. peer to peer, Thank you so much
bgp for ipv6 question
Hi all Can I know how many ipv6 full bgp table routes now? how many memory can run one ipv6 full bgp table? how many peer for ipv6 in Router reflector you suggest? Do you suggest to separate the ipv4 and ipv6 in router reflector? Thank you for your info
need help 40 G
Hi all I would like to ask any free program/method can test 40G I tested it by ip erf program but it is not over 20G Thank you
need help about 40G
Hi all Do you have experience in 40G equipments eg: switch and NIC? Any brand name is reliable Thank you so much
please helpconfederation and ibgp question
Hi all I would like to ask questions aboutconfederation and ibgp We know confederation from nanog achieve 101,102 and setup lab. bgp and ibgp can work properly but not sure we are doing right. We have quesions 1/ for the annoucing networks, do we have to announce it in border routers? eg: border routers. 66.59.128.0/22 but all ibgp routers are already announcing networks individually in ibgp Routers eg: Router A: 66.59.128.0/24, Router B: 66.59.129.0/24, Router C: 66.59.130.0/24, Router D: 66.59.131.128/25 In our labs, it can work. but we would like to know the setting is correct. or any announcing overlapping when announcing in broder Router and all individual ibgp routers 2/ But if it is not right to announce /22 in broder routers, let Router A,B,C, D announce it in 4 separate networks. ls it ok too? in the lab, the bgp can work too. but i read the bgp doc that it prefers us to announce it in /22 instead of 4 seperate one? 3/ in the border routers, we take out some ip from network 66.59.131.0/24 (eg: 66.59.131.0/28, 66.59.131.16/28) to interconnected to Router A, B, C and D We don't know which one is good for use in bgp configuration redistributed connected or network 66.59.131.0/28 network 66.59.131.16/28 If using network command network 66.59.131.0/28, network 66.59.131.0/28 to let communicate between ibgp, there might have overlapping too as we already announcing 66.59.128.0/22. in the border router, there might have network 66.59.128.0/22 network 66.59.131.0/28 network 66.59.131.16/28 ls the command redistributed connect better? but this is border Router. We concern it will effect the upstream using redistributed connect Please help Thank you so much
need help about bgd and ospf
Hi all Can I have questions about bgp and ospf 1/ Do I have to redistrt bgd in ospf to make ospf to know which upstrem bgp routers to go out 2/ If yes, how many routes can ospf database handle as one full bgp table is about 400,000 routes 3/ When we have 8 ospf routers to run redistrubt bgp, ls it 8 x 400,000 routes in ospf database? 4/ If not redistribted bgp, how ospf to know which upstream to go out Thank you for your help
any sites about interent networkissue
Hi Yesterday I have internet nework issue. I checked our interent providers but their answers are fine But the traceroute can't reach to some desintations. eg: gogle and stopped somewhere Any websites can provide about network issue Thank you
packet question
Hi Can I know what tools can investigate the small packets? Thank you
Re: bgp question
Hi Thank you all of you Can I have one question? We are planning to have 3 x 1G bgp connections (full tables) eg: Path A, B, C Can I say that we have 3G output totally? From my understanding, the bgp chooses the best path to route automatically If the path A is best route and that path 1G bandwidth is used up, will bgp try to use path B and path C automatically? or the bgp still choose to path A whatever the bandwidth is used up How can I use up those 3G? Thank you so much PS: my platform is linu On Wed, Jan 18, 2012 at 7:24 PM, Jonathan Lassoff j...@thejof.com wrote: On Wed, Jan 18, 2012 at 5:58 AM, Deric Kwok deric.kwok2...@gmail.com wrote: ls it supporting equally multipath in different bgp connections? Most software routing protocols have support for this in their RIBs, but the actual forwarding ability of the underlying kernel will determine the support for this. What platform do you route on? Cheers, jof
Re: bgp question
Hi Justin Thank you Could you tell me more about routing registries? I would like to learn it 2nd questions? Are you familiar to quagga? ls it supporting equally multipath in different bgp connections? Thank you so much On Tue, Jan 10, 2012 at 7:58 PM, Justin M. Streiner strei...@cluebyfour.org wrote: On Tue, 10 Jan 2012, Deric Kwok wrote: When we get newip, we should let the upstream know to expor it as there should have rule in their side. Correct. Ideally, two things happen: 1. You tell your upstreams and peers about the new space, and they update whatever prefix filters they have in place for your network. 2. You update you own outbound BGP filters wherever necessary so that you can announce the new prefix, aggregated to the extent possible, when you're ready. how about upstream provider, does they need to let their all bgp interconnect to know those our newip? They might. It depends on the relationship your upstreams have with their neighbors. Different providers have different criteria for what they'll accept and how they manage their filters. If your upstreams need to have their upstreams and/or peers update their BGP filters, it is their responsibility to notify them. Note that this can add to the amount of time it will take before your direct upstreams are ready to accept and propagate your new prefix. Some providers might require that your new prefix be registered in one of several routing registries, and they'll update their filters based on your new registry data. jms
bgp question
Hi all When we get newip, we should let the upstream know to expor it as there should have rule in their side. how about upstream provider, does they need to let their all bgp interconnect to know those our newip? If no, Can I know how it works? If they don't have rules each other, ls it any problems? Thank you so much
Any tools to help network security
Hi We discover there are so many (source) ip not belonging to our network to go to outside. We can block it but don't know how to locate the source. Any tools can be easily found out. Thank you
Any recommended router. They are reliable and have good support.
Hi Can I know any selection of Linux routers except cisco / juniper? They are reliable and have good support provided We would like to get one for testing. Thank you
mtu question. more should be better, right?
Hi all When I setup the server mtu as 9100. why I have to configure the switch mtu 9300 to make it working? What this extra 200 bytes is for what purpose? ls it standard? What is disadvantage of setting our all internal networks (host / equipment) mtu more than 1500? Thank you for your advice.
the route is not in our bgprouter
Hi When we try to reach to outside ip, this route doesn't have in our bgp router How can we check whether it doesn't advertise from our upstream to us? Any web site and tools can help? Thank you
Re: the route is not in our bgprouter
Hi Our upstream provider said that destination network is blocking our ip. Now my question is how we can know it If this network is blocking us, the traceroute should reach out our bgp router to go further nodes before that network, right 2nd question is how they block us to not allow the route to advertise from our upstream to our bgp router. ls it possible? Thank you so much On Tue, Oct 25, 2011 at 9:35 AM, Patrick Sumby patrick.su...@sohonet.co.uk wrote: If your provider has a looking glass then that is a good start to see if they have the route in their routing tables. http://www.traceroute.org/ is a good start for searching for a looking glass on their website. Have you checked to see if you're actually recieving the route? You may be getting the route but not installing it into your routing table for some reason (eg invalid next hop or a router from another provider is being prefered). Do you have prefix lists inbound from your provider that could be blocking a route? show ip route X.X.X.X and show ip bgp route X.X.X.X will give different information. If you've covered the above and not found the answer then try talking to your provider. Regards Patrick On 25/10/2011 13:26, Deric Kwok wrote: Hi When we try to reach to outside ip, this route doesn't have in our bgp router How can we check whether it doesn't advertise from our upstream to us? Any web site and tools can help? Thank you
Can this bgp work?
Hello We would like to split our network advertising with same AS no. in different our bgp routers to same or different upstream provider eg: 66.70.0.0/20 in bgpRouterA 67.170.0.0/20 in bgpRouterB 174.70.0.0/20 in bgpRouterC ls it working? Thank you
network issue help
Hi There is problem in our network. The connection is disappearing. ls it about lop ing? How can I check it in switch? ls spammingtree disable by default? Thank you so much
32 and directallocate
Hi I have the following questions. hope you can help 1/ In ipv6 /32. ls it same as ipv4 /32 2/ If our company is using our ISP AS and their IP for providing internert ds line service, can we transfer those ip from them to us when we change other provider? 3/What is meaning directallcoate? Thank you _ NANOG mailing list NANOG@nanog.org https://mailman.nanog.org/mailman/listinfo/nanog
Re: website in ipv6
Thank you all Two questions: If I get the HE as upstream to advertsie our ipv6, 1/ Do we still have www.tunnelbroker.net as tunneling connection? 2/ All the internet users can access our ipv6 website? Thank you On Tue, Jun 28, 2011 at 2:09 PM, Kenny Sallee kenny.sal...@gmail.com wrote: I did this by creating a 6to4 tunnel to a relay provided by 6in4, not 6to4. While HE do operate 6to4 relays, the brokered tunnel service is 6in4. A very important distinction I didn't have clear in my head. To regurgitate some reading I just completed: both methods use v6 in v4 tunneling using ip proto 41 in the IPv4 protocol field. However, 6to4 derives the IPv4 tunnel destination of an IPv6 packet based on bits 17-48 of the IPv6 packet - which when converted, equals the 32 bit IPv4 destination. While 6in4 is statically configured IPv4 source and destination IP addresses on the Tunnel (gre) interface. In Cisco world the config comes down to 'tunnel mode ipv6ip' vs 'tunnel mode ipv6ip 6to4' and a few other lines of config. Of course there are a lot more details then that searchable via google. Thanks for pointing out my mistake - it helped me learn some more! Later, Kenny
Re: AS and advertisen questions
Hi all Thank you so much for your help I am not using cisco. From my understanding from your mail, I should configure bgp as the following. Right? What do I should pay attention also? Seattle: network 66.49.130.0/24 announce out permit: 66.49.130.0/24 announce out deny 0.0.0.0 deny in 66.49.130.0/24 permit in any New York: network 67.55.129.0/24 and ipv6 network. announce out permit 67.55.129.0/24 and ipv6 network. announce out deny 0.0.0.0 deny in 67.55.129.0/24 and ipv6 network permit in any Thank you again On Sat, Jun 25, 2011 at 10:11 PM, David Swafford da...@davidswafford.com wrote: Yep, we do it that way. We basically treat each of our datacenter's as their own entity, using separate space for each, but all with the same AS #. What Joel mentioned is going to be the major catch, in that for each of the two disconnected AS's to accept the opposite sites routes, you'd need to relax BGP's loop prevention check (which looks for it's own AS # within the AS Path of incoming routes). If your on Cisco gear, you'd need to add an additional command under the BGP neighbor configuration that says allowas-in. Here's a breif doc from Cisco on configuring this http://www.cisco.com/image/gif/paws/112236/allowas-in-bgp-config-example.pdf David. On Sat, Jun 25, 2011 at 9:39 PM, Joel Jaeggli joe...@bogus.com wrote: On Jun 25, 2011, at 6:03 PM, Deric Kwok wrote: Hi Can we use same AS to advertise different networks in different location? We would like to use Seattle as production network and New York as testing eg: Seattle: network 66.49.130.0/24 New York: network 67.55.129.0/24 and ipv6 network. Thank you Assuming you want the two instances to be able talk to each other you just have to relax loop detection so that you will accept prefixes from your AS...
website in ipv6
Hi all I am trying to configure website for testing ipv6 Just wander how internet users eg: DSL users can visit this website and any people can access this website over the world Thank you
AS and advertisen questions
Hi Can we use same AS to advertise different networks in different location? We would like to use Seattle as production network and New York as testing eg: Seattle: network 66.49.130.0/24 New York: network 67.55.129.0/24 and ipv6 network. Thank you
whoi modify question
Hi My boss wants me to resign part of ip /25 to customer For the whois record to this customer, how can I do it? Thank you
Re: whoi modify question
Thank you all ls whois only done from ARIN website? How about my rwhois server? Everytime I apply the ip. ARIN needs us to do the whois server How can I do referral? any info? Thank you again On Fri, Jun 17, 2011 at 1:09 PM, Patrick Darden dar...@armc.org wrote: My mistake. Apologies. Here is the relevant section: ARIN requires organizations to submit information for all IPv4 reassignments of /29 and larger and IPv6 reassignments of /56 or shorter prefix within seven days of the subdelegation. For IPv4 blocks of /30 or longer prefix, ISPs may choose to provide utilization data via SWIP (Shared WHOIS Project) or manually upon request. There are special reporting requirements for residential cable ISPs and residential customers. Organizations may only submit reassignment data for records within their allocated blocks. --p On 06/17/2011 01:03 PM, Joel Jaeggli wrote: On Jun 17, 2011, at 9:57 AM, Darden, Patrick S. wrote: The short answer is you can't. ARIN only cares about /24s or bigger. If the network were a /24 or larger, then your customer would need to get an ASN (autonomous system number) and then you could register the network to them. negative, blocks are swiped at /29 and larger. More info here: https://www.arin.net --Patrick Darden -Original Message- From: Deric Kwok [mailto:deric.kwok2...@gmail.com] Sent: Friday, June 17, 2011 12:34 PM To: nanog list Subject: whoi modify question Hi My boss wants me to resign part of ip /25 to customer For the whois record to this customer, how can I do it? Thank you
ip 6 questions
Hi Our company will prepare ipv6. I have the following questions We will apply ipv6 from ARIN and try to use it in hosting business 1/ Can we use it in our current AS which is using ipv4? If not. Do we have to apply new AS? 2/ Can arin not allow us to apply ipv4 for the future after we apply ipv6? 3/ Any advices to do ipv6 in hosting business Thank you for your help
rwhois website
Hi all I am trying to use http://www.rwhois.net/rwhois/prwhois.html to check my rwhois server but it is not reachable now Do you know why the websie is not in existing? and how can i check it Thank you
switch networking help
Hello I would like to ask general question about switch speed experience. How can I increase speed in switch port? ls it to combine more than one port? Any other solution? In combing ports, what are the advantages and disadvantages? Any info and experience. Thank you for your sharing.
need help about switch montior
Hi ls there any program/way to monitor the switch port/switch status when it reaches to certain bandwidth? Thank you so much
download speed very fast.
Hi all Do you know about sppedboost? Why it can suddenly burst to higher transfer rate from first 10M Can you share what equipment behinds to make it work? eg: cisco, juniper? Thank you so much
switch about routing p
Hi I read switch that supports PIM / ESRP / VRRP What are they? Thank you
Anyone can share the Network card experience
Hi Anyone can share the Network card experience ls onborad PCI Expresscard better or Plug in slot PCI Express card good? How are their performance in Gig transfer rate? Thank you so much
fibr question - Please help
Hi all I don't have two fibr card so that I can't test it If i have one setting as mode NOT negot, one is using AU To mode Can they ping each other? Thank you for your help
pls help about mtu setting again
Hi Thank you for your reply about DSL mtu Now I have question about internet cable connection. ls it same as DSL? I tested it in my friend cable connection. 1470 is fine but 1480 is problem. Why it needs header in cable connection also? C:\Documents and Settings\dericping yahoo.com -f -l 1470 Pinging yahoo.com [98.137.149.56] with 1470 bytes of data: Reply from 98.137.149.56: bytes=1470 time=96ms TTL=50 Reply from 98.137.149.56: bytes=1470 time=91ms TTL=50 Reply from 98.137.149.56: bytes=1470 time=92ms TTL=50 Reply from 98.137.149.56: bytes=1470 time=89ms TTL=50 Ping statistics for 98.137.149.56: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 89ms, Maximum = 96ms, Average = 92ms C:\Documents and Settings\dericping yahoo.com -f -l 1480 Pinging yahoo.com [98.137.149.56] with 1480 bytes of data: Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Ping statistics for 98.137.149.56: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), Thank you for your help
ls my modem or DSL company issue? 1300 not good but 1200 is fine
Hi It is very nice that Ina replied me about mtu help Now I am using ping to check but not sure it is my modem or DSL company issue? C:\Documents and Settings\derekping yahoo.com -f -l 1300 Pinging yahoo.com [98.137.149.56] with 1300 bytes of data: Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Packet needs to be fragmented but DF set. Ping statistics for 98.137.149.56: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), C:\Documents and Settings\derekping yahoo.com -f -l 1200 Pinging yahoo.com [98.137.149.56] with 1200 bytes of data: Reply from 98.137.149.56: bytes=1200 time=141ms TTL=55 Reply from 98.137.149.56: bytes=1200 time=141ms TTL=55 Reply from 98.137.149.56: bytes=1200 time=145ms TTL=55 Reply from 98.137.149.56: bytes=1200 time=141ms TTL=55 Ping statistics for 98.137.149.56: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 141ms, Maximum = 145ms, Average = 142ms Thank you for your help
pls help about mtu setting
Hi My DSL company asks me to set the modem 146 2 and my old company used 14 92 What is the different? Why it is not standard 1 500? Thank you
any suggestion about ppp device
Hi Any suggestion about dsl ppp modem? How can I test it? or everyone should be same Thank you so much
useful bgp example
Hi My company will get 2 upstream provider. We will plan 2 routers and each router to connect one provider to use bgp for redundant. Do you have any useful bgp example and website to set it up? Thank you for your help
Re: dark fiber
Can I have question? What is dark fiber? Thank you On Wed, Feb 10, 2010 at 5:08 PM, James Jones ja...@freedomnet.co.nz wrote: I am doing some researchis there a way to find out where there is dark fiber and who own's it?
domain registra question
Hi We are doing hosting and We are interested in doing Domain registra Could you provide more info? Thank you
Re: domain registra question
Hi Thank you so much Do we need to setup any application for processing? I don't understand this whols. ls it serve? Thank you again On Sat, Jan 30, 2010 at 9:22 AM, hutuworm hutuw...@gmail.com wrote: You may want to check the Registrar Tasks section at http://www.icann.org/en/processes/ *Registrar Tasks* - Registrar Accrediation Processhttp://www.icann.org/en/processes/registrars/raa-process-17feb09-en.pdf [PDF, 16K] - Registrar Accreditation Agreement Renewal Processhttp://www.icann.org/en/processes/registrars/raa-renewal-process-18feb09-en.pdf [PDF, 16K] - Assignment Processhttp://www.icann.org/en/processes/registrars/assignment-process-17feb09-en.pdf [PDF, 16K] - Adding a gTLD Appendixhttp://www.icann.org/en/processes/registrars/adding-gtld-appendix-17feb09-en.pdf [PDF, 12K] - ICANN Procedure for Handling Conflicts with Privacy Lawhttp://www.icann.org/en/processes/icann-procedure-17jan08.htm - De-Accredited Registrar Transition Procedurehttp://www.icann.org/en/processes/registrars/de-accredited-registrar-transition-procedure-01oct08.pdf [PDF, 121K] On Sat, Jan 30, 2010 at 10:07 PM, Deric Kwok deric.kwok2...@gmail.comwrote: Hi We are doing hosting and We are interested in doing Domain registra Could you provide more info? Thank you
why it happens short packet. Which network device is problem?
Hi all I got the following message. UDP: bad checksum. From 67.204.26.203:1054 to 66.49.0.97:55290 ulen 43 UDP: short packet: From 67.55.92.141:23801 30368/46 to 66.49.0.0:24617 What is this meaning? Which network device is problem? Why it happens in the network? Thank you
Re: how it routes and network question
Hi Bruce Thank you so much to explain me in detail. I would like to know about this it in case i can get another hosting company Yes. I think the netmask should be 255.255.255.255 1/ but why they are using this netmask setting? save ip address? then does the router handle many routes in this setting? 2/ What is this advantage for the hosting company? 3/ If I need more ip in the same server, how it works? 4/ Why you said the hosting company is cheap to use this configuration? Thank you again. SNIP 2/ lf the network card in server has problem and need change another one, will my ip address change to another ip address also? /SNIP Yeah well thats how dhcp works, via ma caddy, i guess you can always spoof your old mac address. SNIP 3/ why hosting company is using /32 and dhcp? what is advantage? ls it easy for administration? /SNIP Im guessing because the users are to stupid to understand what a subnet mask/gateway is its just easier to get the mac address and assign it to a user then let the user assign a ip. Normally in a co-location setup its not like this, inless its very cheap hosting. My co-location has the following setup, and this is how MOST networks should be run. Core router using BGP to transit providers, and other local peers. Switched network useing ospf to handle the routes and also VLAN's for the customers subnets. So customer should get a vlan assigned to them (which they have no need to know what the number is, they are handed a access mode port. Customers also issued a /30 (at least) in most cases a customer will get a /29 or /28 depending on what they need. In this case of a /30 its a total of 3 address's 1, GATEWAY (put on the ISP/HOST switch 2, IP ADDRESS FOR SERVER TO USE 3, BROADCAST ADDRESS. Heres an eg of a /30: Address: 192.168.1.1 1100.10101000.0001.00 01 Netmask: 255.255.255.252 = 30 ...11 00 Wildcard: 0.0.0.3 ...00 11 = Network: 192.168.1.0/30 1100.10101000.0001.00 00 HostMin: 192.168.1.1 1100.10101000.0001.00 01 HostMax: 192.168.1.2 1100.10101000.0001.00 10 Broadcast: 192.168.1.3 1100.10101000.0001.00 11 Hosts/Net: 2 Class C, Private Internet Heres an eg of a /29: the % ipcalc 192.168.1.1/29 Address: 192.168.1.1 1100.10101000.0001.0 001 Netmask: 255.255.255.248 = 29 ...1 000 Wildcard: 0.0.0.7 ...0 111 = Network: 192.168.1.0/29 1100.10101000.0001.0 000 HostMin: 192.168.1.1 1100.10101000.0001.0 001 HostMax: 192.168.1.6 1100.10101000.0001.0 110 Broadcast: 192.168.1.7 1100.10101000.0001.0 111 Hosts/Net: 6 Class C, Private Internet Hope this makes sence. Regards, Bruce
how it routes and network question
Hi I recently get two dedicated servers in hosting company the ip address of the server is eg: 192.168.32.4/32 and 192.168.57.2/32 I try to check the gateway but it seems no any trace command in the server. hosting company is using dhcp in those servers network configuration. I have concern and questions 1/ How can I know those servers are same network as those net mask is /32 if not the same network, I have problem when two servers are slowing in transferring files 2/ lf the network card in server has problem and need change another one, will my ip address change to another ip address also? 3/ why hosting company is using /32 and dhcp? what is advantage? ls it easy for administration? Thank you for your help
Optical fiber question
Hi My provider said they can provide single / mulit mode Optical fiber Apart from the length and cost different, what is the Adv/Disadv between them for our connection? Thank you
need your suggestion about switch
Hi I am requested to get not brand list switch how can I test it? any software or methods eg: reliable speed or any need Thank you so much
Re: real hardware router VS linux router
Anymore success to use multiple CPU to bind NIC to increase the performance Thank you On Sun, Feb 22, 2009 at 4:52 AM, Nathan Ward na...@daork.net wrote: On 22/02/2009, at 8:27 AM, Leen Besselink wrote: If you had to choose, it's probably smarted to go with OpenBSD, it has a lot better integration of packet filter, bgpd-daemon, ospf, vrrp-like, etc. If you have one eBGP session in your whole network, sure. However if you have more than one, BGP cannot do the Prefer the path with the lowest IGP next-hop metric thing, as OpenBGPd does not know metrics from OpenOSPFd. Someone commented that OpenBSD would be able to do this soon as metrics were added in to the routing code in -current, but I have not tried this personally and a quick couple of queries on Google didn't reveal anything other than internal OpenOSPFd stuff. I have however used OpenBGPd and OpenOSPFd with great success on routers we put at single-homed customer sites for a small business-only ISP I used to work at. We used BGP communities to put prefixes in to PF tables, and then shaped and accounted based on that. (Here in NZ we have a few thousand domestic prefixes, which transit to/from is often cheaper than transit off-shore). -- Nathan Ward
Can I know how this network works (resend)?
Hi all main router- 3 static routes ip route 192.168.0.0/24 10.0.0.1 (routerA) ip route 192.168.1.0/24 10.0.0.2 (routerB) same switch ---telecom company---client request ip route 192.168.2.0/24 10.0.0.3 (routerC) Diagram === ---routerA--- main router ---switch ---routerB--- switch ---telecom company ---routerC--- dyname ip clients ip 192.168.0.0/24 and 192.168.1.0/24 static ip clients ip 192.168.2.0/24 This setting is fine when any dynamic ip clients sent from telcom company. But When telecom company sent request from static ip client (any ip in 192.168.2.0/24) but this client is sent to in routerA, how this work out? I really don't want to have 192.168.2.0 in routerC to routerB then routerA in loop as there will have big admin work if there is more than 3 routers and have increase new static ip client for the future Thank you for your help
switch speed question
Hi Can you share your experience what is fastest Gig switch? I see there is CEF feature in cisco. ls it big different when i enable it in switch vs other switch? ls there any problem? Thank you
real hardware router VS linux router
Hi All Actually, what is the different hardware router VS linux router? Have you had experience to compare real router eg: cisco VS linux router? eg: streaming speed... tcp / udp Thank you for your information
Networking performance
Hi I would like to ask your professional experience about switch throughput I have Gig Switchs eg: H P3400 /3500, cisco c4 948../ dlink In their spec, they said that it can handles Gig So far, I couldn't see their ports are used up over 200M in mrtg graph when I try to transfer 3G size files to files between computers ls there any limitation in those switchs? or I have to do configuration eg: put it full duplex instead of auto Thank you for your help
