About Danny Cheng Chee Wah

Danny Cheng Chee Wah · 06-29-2014

Hi,Just want to understand better/confirm on the licensing for Cisco Catalyst 3850. I read that it is running on a RTU license, which means I only need to specify the license requirement during order (I.e, IP Base) and I'll get a paper license. Then,...

Danny Cheng Chee Wah · 06-17-2014

Hi, Referring to the subject, U-Interface card has a built-in NT1 and uses a RJ49C connector. S/T-Interface card is used by connecting to an external NT1 and uses a RJ45 connector. Hence, just to confirm if I can use U-Interface card and connect to a...

Danny Cheng Chee Wah · 06-10-2014

Hi, Referring to the topic, we have an ASA5505 (Unlimited-Base License) which was working fine for more than a year now. For WAN, we have a static IP configured on the ASA with default route pointing to the ISP router. For LAN portion, we have server...

Danny Cheng Chee Wah · 02-09-2014

Hi,Referring to the topology below, I encounter a problem where I cannot reach Site B from Site A.Below is the ping test performed.FW_A (ASA5512-X)1) Ping 10.60.186.69 >>> Success2) Ping 192.168.88.2 >>> Success3) Ping 192.168.88.6 >>> Success4) Ping...

Danny Cheng Chee Wah · 01-23-2014

Hi All,I'm setting up a Remote Client VPN and can consider succesfully done it. However, I'm facing a problem where a single user login is shared among a few users. For example, 4 person is sharing 1 user access, but I am limiting it to 3 concurrent ...

Danny Cheng Chee Wah · 07-29-2014

Hi All, Just to update that calls are successful for both incoming and outgoing now. Apart from H323 NAT settings on SX20, NAT settings and policies on ASA, you may need to disable inspect h323 on the ASA too. Else, you may have a problem in getting ...

Danny Cheng Chee Wah · 07-24-2014

Hi, There's 2 SX20 and 1 Tandberg connected to the ASA5505. All 3 can make successful call connection and transmit video/audio. However, only 1 SX20 was able to receive video/audio successfully. Any ideas on this? On ASA5505, already did static NAT f...

Danny Cheng Chee Wah · 07-21-2014

Hi Patrick, Currently, SX20 can't make/receive calls to external, as tested by my own. Within internal, no issue. Hence, it's either some NAT settings on the firewall or SX20. Have you had any experience of such setup? If yes, hope you can share on t...

Danny Cheng Chee Wah · 07-21-2014

Hi Enrico,I have yet to test the NAT settings, but will do so today.* Verify your firewall port settings: ** All ports are actually being forwarded (you can block ports 0-1023) >> One-to-one NAT done from Public to LAN and policy has been set to ...

Danny Cheng Chee Wah · 07-21-2014

Hi Patrick, For this, we are only deploying it in standalone mode. So if I were to place a firewall in between ISP router and the SX20, only way to block spam calls is to block UDP 5060 from passing thru the firewall? Just to confirm that if call...

Member Since	‎03-05-2013 07:52 PM
Date Last Visited	‎04-07-2019 06:18 PM
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Cisco Catalyst 3850 Licensing

ISDN BRI U-Interface vs S/T-Interface

NAT Doesn't Seem to Work on ASA5505

Cannot access LAN-zone interface from VPN-zone

Current User Session Terminated in Remote Client VPN

Hi All, Just to update that

Hi, There's 2 SX20 and 1

Hi Patrick, Currently, SX20

Re: H.323 Calls via internet using SX20 Codec

Hi Patrick,