About wuh

wuh · 09-20-2013

hi, there,we have many interfaces on our access layer switches, each of them are connected with two devices, a phone and a computer, how ever, we found each of the interfaces with many mac addresses, some of them even with hundreds. The devices are n...

wuh · 11-16-2009

hi,I was reading CCIE R&S by Wendoll Odom about BGP Nexthop, see the diagram. It first gives a problem in this scenario, "R4's route to 30.0.0.0/8 through R2 lists R1 IP(1.1.1.1)....Unfortunately, R4 doesn't have a route for 1.1.1.1 on R1, so that ro...

wuh · 11-07-2009

thank you first.4 routers:R3--R1--S1--S3R3 and R1 are in Area 3;R1 and S1 are in Area 0;S1 and S2 are in Eigrp;redistribute S3 Lo0 into A0.When show ip ospf data on any of these three routers that run ospf, there is only type 5, no tpye 4.why?

wuh · 05-06-2009

Hi,I configured netflow a router 1841, which have two Ethernet interfaces in work. on the interface FE0/1, I enabled netflow, on FE0, i didnt. but when I use my application to look the traffic, it shows the traffic on FE0/0. why?thanks,Haninterface F...

wuh · 04-14-2009

Hi, guys:I am just wondering whether there is a script that i can do a repeat work.For instance, if I try to find any switch within 200 switches that with VTP mode="server" or vtp domain name <> ABC? Can this "script" just list them?thanks,Han

wuh · 09-23-2013

Amjad,The only happened with specific type of phone connected, as far as i know. and from our ISE, I see a lot of Unknown mac-address, starting with Cray communicatins. Besides the TCam is running out of Mask part sometimes, i suspect, it is a resul...

wuh · 09-23-2013

See the port confi, thanks,#sh run int gi6/32Building configuration...Current configuration : 650 bytes!interface GigabitEthernet6/32 description User_Port switchport switchport access vlan 212 switchport mode access switchport voice vlan 218 speed ...

wuh · 09-23-2013

Here is a example of the show mac- results. on port g6/32, there are 4 mac addresses, all of them are actually phantom macs. they dont have any entry in the arp table. the mac addresses are from Cray Communications and i suppect it has somethinng to ...

wuh · 11-16-2009

Giuseppe thanks first.My understanding is that:as long as R1 advertizes 1.1.1.0/30 to R2. R2 would pass it to all routers in its AS, right?So, I'd think your condition wouldnt exist. "if IP subnet 1.1.1.0/30 is not advertised in iBGP or in an IGP R3 ...

wuh · 11-13-2009

thanks,

Member Since	‎06-05-2007 04:46 AM
Date Last Visited	‎08-18-2017 04:00 AM
Posts	89

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multiple mac addresses found in one interface

BGP NextHop field

Need OSPF expert--type 4 lost

Netflow question

Script?

multiple mac addresses found in one interface

multiple mac addresses found in one interface

multiple mac addresses found in one interface

Re: BGP NextHop field

Re: Need OSPF expert--type 4 lost