Can anyone advise how to best troubleshoot slow dns issues? Are there any helpful tools? When slow dns occurs the problem is sometimes very elusive and not obvious and may take hours before you finally realize the cause.
Forum Posts
I have router 2921 with 3 layer 3 interfaces i need to configure one of them as access interface encapsulation in bidirectional (not subinterface solutions)
hi all , im trying to configure ipsec tunnel from R2 to R4 (top right router) . but after i configured all the ipsec gre commands , my ospf routing seems to be down suddenly and now both my ipsec and ospf doesn't work. any one can help me please? i'm...
I am facing issue downloading Cisco router 3900 series IOS, I click on download and it send me to another webpage, it keeps redirecting me in a loop and I get stuck there, if anyone knows why is this happening, Thank you!
Topology:PC -> Switch -> Network Encryptor (Layer 3 device) Switch: SVI for PC Default-gateway is Network Encryptor Static route 0.0.0.0/0 [1/0] via [Network Encryptor's IP] IP routing is enabledRouted port that connects to Network Encryptor The swit...
I (think I) understand the difference in operation between type 1 and type 2 metric in AS External LSA, as explained here: https://ipwithease.com/ospf-external-e1-and-e2-routes/ However, I don't understand why I would ever choose type 2 metric versus...
HiPlease advise the pros and cons of the ip address assignment Running OSPF between access and core and dc . Thanks
Hello all I have a Cisco Firepower 1010 running ASA. I would like one of the physical ports Ethernet1/6 to be separated from other the other ports on my inside but it should have access to the internet. I will connect my Hikvision video monitoring an...
Resolved! Cannot login into WEB UI C8300
I have a new C8300 str8 out of the box. Want to give the gui a test. set the ip of the g0/0/1 to 192.168.1.1 255.255.255.0set my PC to .2 etc....connect it.create my username admin privilege 15 password 0 cisc0ip http server is in thereip http authen...
I understand that certain multicast blocks are routable and are not routable (e.g. 224.0.0.0 /24), but I can't find anything on the reserved multicast subnet block (225.0.0.0 - 231.255.255.255 and 235.0.0.0 - 238.255.255.255).These subnet blocks are ...
HelloI have a simple lab trying to do an EIGRP auto-summary.There are three routers in the lab: E8---E0---E2auto-summary is configured on E0, and I am trying to summarize the loopback interfaces on E2 and verify the results on E8. I was expecting to ...
Hi All, We have a Scenario where Router-1(Service provider Router) --> Router-2 (HoP Router)--> Router-3 (Customer Router) connected configured with BGP.Requirement is : if BGP peering between Service provider(Router-1) and Router-2(HoP Router) goes...
Hello!I have problem that server serv1 can't reach serv2 , but serv2 can send data to serv1 (verified by starting tcpdump on both servers).Both servers have routes for remote networks. serv1# ip r | grep 240 172.18.240.0/24 via 172.18.224.254 dev vla...
Resolved! 3650 upgrade failure
Hello, I just tried to upgrade an WS-C3650-48PD running firmware 16.3.6 to new firmware version cat3k_caa-universalk9.16.12.07.SPA (INSTALL mode) I used the command: request platform software package install switch all file fcat3k_caa-universalk9.16...
I didn't find anything in the cisco.com about this error message: 15:35:20.658 FW[Mod 05]: sso_get_reg: ERR sso 1: reg 0xC5 value 0x00 rc 0x80.Someone knows this error message?Thanks.
