Hi Guys   I'm using a IR829GW as a terminal server, this has two Async ports, one of them using rolled cable (rj45-rj45) to connect to the console port in 1841 router. When I telnet y notice the terminal server is establishing the reverse telnet session with itself. I have configured "no exec" command under line Some ideas why this could be happen?   ! no ip domain lookup ip domain name test ip host ROUTER-1841 2069 10.201.201.1 ! ! interface Async0 no ip address encapsulation slip ! interface Async1 no ip address encapsulation slip ! ! line con 0 stopbits 1 ! line 1/3 session-timeout 20 exec-timeout 0 0 no exec transport preferred none transport input all transport output all ! line vty 0 4 transport input telnet transport output all ! IR829#show line Tty Line Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int * 0 0 CTY - - - - - 102 0 0/0 - 1 1 TTY 9600/9600 - - - - - 0 0 0/0 - 2 2 TTY 9600/9600 - - - - - 0 0 0/0 - A 3 3 TTY - inout - - - 0 0 0/0 Ce0 4 4 TTY 9600/9600 - - - - - 17 0 0/0 - I 8 8 TTY - - - - - 0 0 0/0 Ce1 1/3 69 TTY 9600/9600 - - - - - 78 0 0/0 - 1/4 70 TTY 9600/9600 - - - - - 8 0 0/0 - 1/5 71 TTY 9600/9600 - - - - - 0 0 0/0 - 1/6 72 TTY 9600/9600 - - - - - 0 0 0/0 - 705 705 VTY - - - - - 0 0 0/0 - 706 706 VTY - - - - - 0 0 0/0 - 707 707 VTY - - - - - 0 0 0/0 - 708 708 VTY - - - - - 0 0 0/0 - 709 709 VTY - - - - - 0 0 0/0 - Line(s) not in async mode -or- with no hardware support: 5-7, 9-68, 73-704    Marcelo     ... View more

Hi Guys   I have a situation. The scenario (see the attached diagram) has to PE01 (IOS) connecting via a port-channel to P01 (IOS-XR), turn P01 connect to PE02 (IOS-XR). So we've configured a pseudowire between PE01 and PE02, this works fine! then we've configured a TE tunnel between PE01 and PE02, but when we chose the TE tunnel as preferred path for the PW, happens the following:   PC-A mac address appears on PE02 mac address table, however PC-B mac address doesn't appears on PE01 mac address table, so there is not connectivity between PC's at all.   It seems like the TE tunnel is causing some issue (thought TE tunnel status is okay at all), and the problem seems to be between PE01 and P01, when we take the TE tunnel from the PW preferred path, everything works fine! I'm not sure if this problem is caused by the port-channel too. I've been looking for some software bugs in IOS 12.2(33)SRE6 and IOS-XR 4.3.1 but there is not such.   Anyone of you had this problem as well? Marcelo     ... View more

Hi Guys I would appreciate a lot your experiences and best practices about operating and monitoring dual stack networks in Service Provider environments. Currently we're working in a 6VPE model for Internet customers in order to provide dual stack services, but we are looking for a way that allows us discriminate and monitor both the IPv4 and IPv6 traffic separately.    Does anyone could to share his experiences, how did they were addressed? What kind of monitoring tools have you used?  What did you do in order to guarantee a reliable monitoring strategy?   I will appreciate your support a lot. Marcelo ... View more

Hello Guys I wanna to implement PE redundancy for CE devices on the access layer. We have l3vpn customers, VRFs are terminated on PE routers, so all the traffic going to CE devices is layer 2, except for some CE devices that are working in layer 3. So my goal is to provide PE-CE connections in a dual-home fashion from CE devices to aggregation layer. About STP on PE routers, we have configured MST and every PE router is the root bridge for its MST region. I did some lab tests in gns3 using IOS routers, so everything looks work fine, however as you know we are not able able to test everything we want. I have some concerns: - What is the best practice in order to allow STP BPDUs between each PE router and avoid layer 2 loops? - What is the best practice using hsrp in a VRF environment, I mean we have many VRFs on the network, moreover hsrp supports 255 groups only. So how can I address this? is it a good recomendation use the same hsrp group for many VRFs? how might impact this?  - What is the best practice to establish hsrp timers in order to achieve a sub-second convergence? I know that this depends on how the routing protocols are configured on the MPLS network and how they are synchronized as well.     Finally I wanna to implement this on IOS and IOS XR PE routers. Thanks for you support and advice! Marcelo   ... View more

Hi Guys   I've been working acording the following document to integrate my WLC 5508 with LDAP for internal users: http://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/100590-ldap-eapfast-config.html   However when I try to generate the device certificate on Windows Server 2012, I see the steps are different, for example when I reach the step 4 (of Generate a Device Certificate for the WLC section), the CA ask me for a Certificate Signing Request instead of Create and submit request to this CA option, as appears in the document. How do I get this?    Thanks in advance for your support! Marcelo     ... View more