ASA throughput depends on port location

I can hardly believe my own test results. I’m making performance tests with ASA 5550 (the one with a factory-installed 4GE module) and there is an interface pair where throughput is smaller than on other pairs.

Interesting MST Troubleshooting

I’ve experienced a strange problem on my desk with two switches. I disconnected the uplink to the company network then the two switches lost connectivity with each other. Even if it was December 31th I felt I must find out what was happening.

IOS EasyVPN Server with LDAP authentication

LDAP support for authentication and authorization was introduced in IOS 15.1(1)T.  In this article we are testing Cisco VPN client connection authenticated against Novell NetWare eDirectory.

Structure of the LDAP directory:

IPv6 host’s default router selection

An IPv6 host’s default router selection is affected both by manual static routes and received router advertisements.

I am very happy with my HE IPv6 tunnel. Szívesen lennék natív IPv6 felhasználó is, de az UPC nem ad információt, hogy milyen IPv6 tervei vannak. )-: I bookmarked Google’s IPv6 site but once it turned inaccessible. What could have happened?

IOS Easy VPN with RADIUS, Cisco Secure ACS 5.1 and AAA Cache

AAA Authorization and Authentication Cache was integrated in IOS 15.0(1)M. This feature enables the router to store AAA credentials in its cache after it received the RADIUS or TACACS+ reply to an AAA request. The cache can be used either for performance boost (avoiding sending requests to the AAA server) or for a fallback method in case the servers are unreachable. The mode depends on the order you place your authentication methods in the aaa commands (see below).

In this example we are caching TACACS admin users’ credentials (telnet, vty) and RADIUS VPN users’ credentials (IKE xauth). The VPN group is also defined on the RADIUS server.

Local user group-lock in IOS Easy VPN

Cisco router IOS Easy VPN Server

Group-Lock feature can also be used with local users, we can even create something like ‘local user groups’. Possible formats are:

name/group, name\group, name@group, or name%group