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Resolved! Serial Connection

HiI have a confusion about naming serial connection.Router ---------------------> CSU/DSU ---------------------------------> WANWhich one is "serial" connection? Between Router and CSU/DSU or between CSU/DSU and WAN?

Issue with vlan going up and down

I have connected an ASA 5520 firewall DMZ to SERVER (55) vlan in core switch and INSIDE is connected as trunk to the core switch (including vlan 66,77). now the management ip of the switch is 10.xx.xx.126/25. and the other vlans are showing "administ...

Resolved! Traffic divert to backup link

Hi all, Basically we are having a Multicast setup.  both  A and B offices are being connected with STM-4 (622 Mbps) with IGP as OSPF. As of now everything is working well with this setup and no complaint .Now since Primary link bandwidth is touching ...

Shibu1978 by • Level 1
  • 2347 Views
  • 9 replies
  • 0 Helpful votes

Cisco 851 router clock change problem

Hi all,We have around 5 remote locations which communicate with a NOC(Network Operations Center) via VSAT link.On remote location we have Cisco 851 routers. I have tried to change the clock and date of the routers to present day.But after some time t...

Resolved! ISP only provided one IP, redundancy question

Hi all,We are installing a new fiber circuit from Comcast which they are delivering to us with one ethernet connection. Initially, I was under the impression that they were giving us two public addresses so I could put one on each of our routers for ...

Issue with vlan going up and down

I have connected an ASA 5520 firewall DMZ to SERVER (17) vlan in core  switch and INSIDE is connected as trunk to the core switch (including  vlan 15,18). now the management ip of the switch is 10.xx.xx.126/25. and  the other vlans are showing "admin...

krranjith by • Level 1
  • 666 Views
  • 4 replies
  • 0 Helpful votes

L2TPv3 VLAN-to-VLAN

Hi all,I have som issue with configuring L2TPv3 VLAN-to-VLAN between two routers over Internet. I have to say that it is working find if I don´t use VLANs but as soon as I configure subinterfaces I cannot ping the other end any more. Here is my confi...

lap by • Level 2
  • 1870 Views
  • 1 replies
  • 0 Helpful votes

Redundant Routers failing at the same time.

Hi All,First post here but maybe someone can help.We are having trouble at one of our datacenters with two redundant 3750s. Both ports for external traffic are dieing at the same time. Internal traffic continues to flow. The configuration is pretty b...

sean by • Level 1
  • 310 Views
  • 1 replies
  • 0 Helpful votes

ASR 1002 and HSRP not supported by Cisco?

I just received very disturbing new from Cisco TAC.I have a pair of physical ASR 1002 routers, called ASR-1 and ASR-2.  I setup HSRP on both ASR-1 and ASR-2 on both g0/0/0 and g0/0/1 interfaces, nothing complicated, just straight forward HSRP.Now Cis...

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