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I have two networks. 10.22.227.X the 227 network has the internet connection on it, I also have 10.22.226.X Network as of right now this network has no internet.You can see the current configuration file here http://jpst.it/yTurAs of right now i can ...

Hi,I am designing a small data center with ASA5512-IPS firewall.The configuration is like: ISP--->2921 Router--->5512 Firewall--->4503 Core--->2960 AccessI am confused about connecting firewall in routed or transparent mode. Will transparent mode wor...

Hi guys - I have a network setup that I'm a bit confused about - it has to do with packet forwarding over a routed link.Here's the scenario:TopologyR1 (Gi2/17 IP:192.168.74.129/30) <------------> R2 (Gi2/1/1 IP:192.168.74.130/30)# Routed link between...

Resolved! IPSec overhead

Hi AllI need some help trying to figure out the IPsec overhead in ESP Tunnel mode.Scanning the internet makes me believe the overhead must be between 51 - 58 bytesWhen testing this in Wireshark makes my head spin.R1 --- R2 --- R3-- R4  (IPsec tunnel ...

Bruin2781 by Level 1
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  • 4 replies
  • 0 Helpful votes

I'm running a 3725 with Cisco IOS Software, 3700 Software (C3725-IPBASE-M), Version 12.4(25d), RELEASE SOFTWARE (fc1) Cisco 3725 (R7000) processor (revision 0.1) with 244736K/17408K bytes of memory. R7000 CPU at 240MHz, Implementation 39, Rev 3.3, ...

I just found out Cisco has introduced support for RFC 1687 in IOS 15.2(2) however I cannot find ANY ssh client implementations that support it. As I am working on a major project to revamp and secure my organizations router and switch authentication ...

I'm trying to configure contexts for various VRF's in a router (specifically testing on a 2811 running IOS 15.1.4).  My understanding is that for SNMPv2c, the contexts should be available by polling the device with <community>@<context>, confirmed by...

Resolved! OSPF-4-NOVALIDKEY

I have a cisco router   isr4300 runningCisco IOS XE Software, Version 03.13.02.S - Extended Support ReleaseCisco IOS Software, ISR Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 15.4(3)S2, RELEASE SOFTWARE (fc3)getting this error on all interfac...

mabeita by Level 1
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  • 1 replies
  • 0 Helpful votes

Hi,I have a 3850 stack (core & access - server or user) and a couple 3750 switches ("user" access) I'm setting up to support a VOIP install.  The 3750s are trunked to the 3850 stack.  All are at current recommended or greater IOS.Currently I'm trying...

HI. I have two switches that where I want to create eigrp neighbor establisment between them. But for some reason nothing happens when I try. No eigrp neighbor establishment is up. What is the reason ?(EIGRP IS OK between R1 and SW1. But not between ...

Hi,the default ARP timeout is 4 hours in the cisco routers. When an ARP entry is going to expire, will the device send an ARP request to retain it's entry?for example,if the default timeout is 4 hours, at 3 hour 59 minutes, is there any ARP request w...

dpavun by Cisco Employee
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HI , I am using the cisco 3560X series of switches with the IOS ver c3560e-universalk9-mz.150-2.SE.bin.I issued the command boot system flash:c3560e-universalk9-mz.150-2.SE.bin in running config and saved.But when I re-check the running config I don'...