Skip to content

Meta

  • Register
  • Log in
ItsyourIP.com

Your gateway to Internet

Primary Navigation Menu
Menu
  • About
  • Contact Me
  • Free Antivirus
  • Free Firewall
  • Sitemap

routing-table

Unable to delete Stale/Obsolete statc routes in Cisco IOS

2008-07-03
By: admin
In: Cisco
Tagged: Catalyst-3750, Cisco, cisco-switch, ios, IP-Routing, routing-table, static-route, wan

Today, I had to troubleshoot a very peculiar problem on my Cisco Catalyst 3750 switches in two different sites. To cut a long story short, both the sites originally had IPSec VPNs over ADSL internet andtherefore static routes added to pass through their VPN firewalls. However, with a recent WAN migration with leased lines, all traffic moved to the WAN routers. However, the Static Routes became stale (obsolete) and we were unable to delete the static routes. The routes are not in the running config (no “ip route command in config”) and a reboot wouldn’t help. If you’re new here, you may want to subscribeRead More →

Solaris Security – Disable ICMP Redirect in Sun Solaris

2007-12-12
By: admin
In: Security, Solaris
Tagged: icmp-redirect, ipv4, ipv6, nddconfig, routing-table, Security, Solaris, sun-solaris

Solaris Operating Environment by default is configured to both accept and send  the ICMP Redirect messages. According to RFCs, only a router or a gateway device should send an ICMP Redirect message and any other hosts should only be able to receive the ICMP Redirects. If the Solaris server is not acting as a Router or a Gateway then sending ICMP Redirect message should be disabled. The same applies to accepting ICMP Redirect messages if the solaris server is not required to receive ICMP Redirect messages (say a single Router/Gateway network/subnets scenario) as a malicous hacker could send fake ICMP redirect messages to modify theRead More →



Categories

  • ARP
  • Browser
  • Cisco
  • Database
  • Debian
  • DHCP
  • DNS
  • DNS Records
  • Firefox
  • internet-explorer
  • IP Tools
  • juniper
  • Linux
  • MySQL
  • Network Inventory
  • Networking
  • OpenSource
  • OpenSource Clustering
  • Opensource Firewall
  • OpenSource LoadBalancer
  • Opensource NAC
  • OpenSource Router
  • Opensource VPN
  • proxy
  • Python
  • Redhat
  • Secure Shell(SSH)
  • Security
  • Security Audit
  • Security/Penetration Testing
  • Sniffing/PacketCapture
  • Solaris
  • Tools
  • Ubuntu
  • Unix
  • VirtualBox
  • voip
  • vpn
  • Windows
  • Wireless

Tags

acl Browser Cisco DHCP DNS DNS Records encryption Firefox firewall gateway High-Availability icmp internet ios ip ip-address ipsec IP Tools juniper Linux mtu network OpenSource Opensource Firewall OpenSource LoadBalancer proxy Redhat registry rhel route router routers Security snmp Solaris switch tcp tcpip udp Unix virtual-server vlan vpn Windows Wireless

Recent Posts

  • MySQL: how to delete all records from a table
  • Python: Remove last ‘n’ characters of a string
  • How to block select in PuTTY
  • How to enable/disable Right-click paste in PuTTY
  • How to change the HOST key in Oracle Virtualbox Manager
  • FileZilla FTP Client configuration through BlueCoat proxy
  • Unable to delete Stale/Obsolete statc routes in Cisco IOS
  • How to create VLAN Interfaces for InterVLAN Routing in Cisco IOS
  • High CPU usage when SNMP is enabled in Cisco Routers
  • Import WyseTerm Host List from one user to another in Windows

RSS Secunia Advisories

RSS MS Security Bulletin

RSS US-CERT Vulnerability

RSS SANS

Recent Comments

  • Forwarding ICMP over a server without redirects on How to Disable ICMP Redirects in Linux for security (Redhat,Debian,Ubuntu,SuSe tested)
  • M.Pasha on How to Disable ICMP Redirects in Linux for security (Redhat,Debian,Ubuntu,SuSe tested)
  • Steve Pollard on How to prevent VLAN Hopping in Cisco Switches
  • Routing issue Sophos UTM Home <-> Cisco ASA 5510 for only linux hosts? - Sophos User Bulletin Board on How to Disable ICMP Redirects in Linux for security (Redhat,Debian,Ubuntu,SuSe tested)
  • BranchCache – Hosted Cache Mode File Server Tutorial | theezitguy on HowTo: Add persistent Static Routes in Windows

Designed using Responsive Brix Premium. Powered by WordPress.