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  1. silverhairb

    New patent "pending"

    As bandwidth increases and the need for privacy expands, scalable solutions for cryptographic processing will be required. Cryptographic solutions must be capable of handling cryptographic processing at full-bandwidth speeds from the PC through the internet backbone. Current cryptographic...
  2. silverhairb

    Cisco color

    I had some paint custom-matched to the color of the Cisco cases. So a few scratches won't matter. They just get painted over and the routers look like new. This is very much certification forum information since I heard that there are at least three questions on the test that relate to the...
  3. silverhairb

    IOS Feature Set for CCNA lab

    Is there a recommended IOS Feature Set for use in a CCNA lab? Is it necessary to get an "Enterprise" feature set or will an IP Plus be adequate? (working with 3640 and 3660 routers with max memory) TIA, [the other] Bill
  4. silverhairb

    Updating IOS from a tftp server

    I've got a 3640 router in the lab that doesn't seem to want to copy a version of IOS from a tftp server. Its running IOS 11.2(23) j-mz. I'd like to try to get it running on 12.3(15) that I have on another 3640 and backed-up to a tftp server. Lab use only. It appears that the copy format...
  5. silverhairb

    Configuration register for tftp boot

    Before I just walk downstairs to the 3660, yank out the 24meg of old flash and insert 64meg, I just want to make sure - REALLY SURE - that when the system boots, it will go out to the tftp server and ask what file to load for boot. Then I can copy the boot image to flash, change the config...
  6. silverhairb

    Cisco 3660

    Just saw one of these with 2FE on e bay for 124 inc shipping, IOS 12.4. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=350157646733 Cheap for one of these behemoths. [the other] Bill
  7. silverhairb

    PCMCIA flash memory card size - 3600 routers

    I've looked around the Cisco documentation to try to determine the maximum size PCMCIA flash memory card for 3640 and 3660 routers. I can only find that Cisco offers cards up to 20meg. That's a bit small for some of the IOS images, particularly IOS v12.4. It also seems like it would be nice...
  8. silverhairb

    DRAM types (or: Why Use Memory with Parity?)

    Is there any advantage memory with parity vs. no parity? To put this in context, I just upgraded a 3660 replacing all the old DRAM memory (160meg, non-parity) with 256meg with parity. Its what I could easily get my hands on. Only difference I notice is that the router seems subjectively...
  9. silverhairb

    U KNOW IT'S FRIDAY PART TROIS

    Here we are again on Friday. The net geeks gathered around the warm glow of their PCs. My wife would give me the supreme compliment by saying "Whatever." She does a lot of CAD so she's not one to criticize. The lab is starting to take shape. 2 x 3640. One of them needs more flash - 8 meg...
  10. silverhairb

    SuperLAT

    What is SuperLAT software? Googled it but just came up with a lot of Console output listings. [the other] Bill
  11. silverhairb

    Confirming IOS compatibility in 3600 series routers

    I'm going to end up owning three or four 3600 series routers, at least two 3640s and at least one 3660. They don't have the same version IOS. A possible additional 3640 has 3600 Software (C3640-JK9O3S-M), Version 12.4(5), RELEASE SOFTWARE (fc3). Will that 12.4 version from the 3640 run on the...
  12. silverhairb

    Router 1 ADSL -> Router 2 ADSL connection

    In considering various types of interconnectivity between two routers in a lab, is it possible to connect a DSL port in one router to the DSL port in a second router using 1 x WIC-1ADSL in each router? If so, could the pretty lavender DSL over POTS cable from Cisco work or do I need to build...
  13. silverhairb

    Private Certification Authorities, SSL and Cisco cert management

    Private Isolated Root / Mutual Authentication SSL Follows is a short explanation of its mechanism and an example of its deployment. SSL is a commonly used technique that uses public key cryptography to exchange cryptographic keys used to secure communication over the internet. To work...
  14. silverhairb

    Password attacks

    Part 1 Background Passwords are often masked and stored in databases to keep them from being compromised through casual observation. Using MD5 as a masking agent provides a one-way method of creating this masking effect. However, creating the simple MD5 hash of a password does not fully...
  15. silverhairb

    3640 question

    I'm setting up a simple config for a 3640. DHCP is working on the LAN side and I'm able to access the router via SDM. On the WAN side, I'm getting a DHCP-assigned address from the downstream 877. But a PC connected to the 3640 cannot access the internet through the 877. (I suspect ip route...
  16. silverhairb

    IOS versions for 3600 routers

    I'm currently using IOS (C3640-JS-M), v12.3(15), fc3) in my 3640 with 1E2W and 1FE1CT1. I'd like to try other versions if that's feasible. I don't have an account with Cisco (does that make me a no account user?). How can I get other versions of IOS to try? TIA, [the other] Bill
  17. silverhairb

    3640 vs 3660

    After scratching my head over this for a couple of days, I'm going to throw this out for discussion.... Given that a 3640 is completely modular and requires at least one NM with a couple of ethernet ports to function, why not just go with a 3660 with two built-in FEs? Seems like the price is...
  18. silverhairb

    3640 Basic Hardware Config

    Just to be COMPLETELY sure of the basic 3640 hardware configuration, is it OK to place a NM 1FE-1CT1 in slot0? My other option is a 1E2W. My understanding is that I need to access the router via either the console or, if via SDM, the ethernet port in slot0. Once set up, I would like the 1FE...
  19. silverhairb

    831 config errors and questions

    I'm trying to get to the point of being able to use CRWS or SDM to configure an 831 for a different network. Two problems have come up on a previously working 831 that I can't seem to figure out. First problem is that the running configuration will save to a file called startup-config but...
  20. silverhairb

    WS-C3524-XL-A for CCNA Lab?

    Seems like a good switch but would it be a good choice for a CCNA lab set-up?

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