What is IP protocol 97?
The Protocol-IP-97 Multi-Protocol Engine is a protocol-aware packet engine for accelerating IPSec, SSL, TLS, DTLS, 3GPP and MACsec up to 5 Gbps in multi-core SoCs offering a large selection of cipher algorithms.
What ports does Capwap use?
CAPWAP uses UDP ports 5246 (control channel) and 5247 (data channel).
What is EoIP tunnel Cisco?
An EoIP tunnel is established between the internal WLAN controllers and the guest anchor controller in order to ensure path isolation of guest traffic from enterprise data traffic. Path isolation is a critical security management feature for guest access.
What does mobility group mean?
A Mobility Group is a group of Wireless LAN Controllers (WLCs) in a network with the same Mobility Group name.
How long is TP4 header?
5 bytes
This makes TCP simpler but every TCP header has to have all possible fields and therefore the TCP header is at least 20 bytes long whereas the TP4 header takes at least 5 bytes.
What protocol number is ARP?
The EtherType for ARP is 0x0806. This appears in the Ethernet frame header when the payload is an ARP packet and is not to be confused with PTYPE, which appears within this encapsulated ARP packet.
What is difference between CAPWAP and LWAPP?
The only difference is the protocol being used between the AP and the controller. DTLS is used as a tightly integrated secure wrapper for a CAPWAP packet….Differences from LWAPP.
| Feature | LWAPP | CAPWAP |
|---|---|---|
| L2 mode support | Yes | No |
| Security | AES-CCMP | AES-CCMP with DTLS protocol |
| Control plane encryption | Yes | Yes |
What is guest anchor Cisco controller?
Cisco defines mobility anchoring as: Mobility Anchor, also referred to as Guest tunneling or Auto Anchor Mobility, is a feature where all the client traffic that belongs to a WLAN (Specially Guest WLAN) is tunneled to a predefined WLC or set of controllers that are configured as Anchor for that specific WLAN.
What is the minimum configuration necessary for establishing an IPIP tunnel?
Both tunnel participants must have external IP addresses (or be on the same network), and there must be no NAT address translation between them. These are the prerequisites for establishing a tunnel. In simple terms, there are no security mechanisms for these tunnels (no encryption or authentication mechanisms).
What is Cisco anchor controller?
How many IP protocols are there?
List of IP protocol numbers
| Hex | Protocol Number | Protocol |
|---|---|---|
| 0x01 | 1 | Internet Control Message Protocol |
| 0x02 | 2 | Internet Group Management Protocol |
| 0x03 | 3 | Gateway-to-Gateway Protocol |
| 0x04 | 4 | IP in IP (encapsulation) |
How is IP payload calculated?
IP payload = 219 (total length) – 12 (Ethernet) – 2 (Type) – 4 (CRC) = 201 bytes >200. The length of the payload to be fragmented = 201 (IP payload) – 20 (IP header) = 181 bytes. The payload length of each chip is 176 bytes, and the sent packets are divided into two slices: 176 and 5.
Does ARP use TCP or IP?
It’s no surprise then, that the most important address resolution protocol is the TCP/IP protocol bearing the same name as the technique itself: the Address Resolution Protocol (ARP). ARP is a full-featured dynamic resolution protocol used to match IP addresses to underlying data link layer addresses.
Is ARP part of IP protocol?
SOLUTION: ARP is a protocol used by the Internet Protocol (IP) [RFC826], to map IP network addresses to the hardware addresses used by a data link protocol. The protocol operates below the network layer as a part of the interface between the Open Systems Interconnection (OSI) network and OSI link layer.
Is CAPWAP layer 2?
CAPWAP communications between the controller and lightweight access points are conducted only at Network Layer 3. Layer 2 mode is not supported in CAPWAP.
What is the purpose of an anchor controller?
In auto-anchor mobility mode, a subset of a mobility group is specified as the anchor controllers for a WLAN. You can use this feature to restrict a WLAN to a single subnet regardless of a client’s entry point into the network. Usually this is used for service guests in a corporate network.
What type of protocol is GRE?
Generic Routing Encapsulation (GRE) is a tunneling protocol developed by Cisco Systems that can encapsulate a wide variety of network layer protocols inside virtual point-to-point links or point-to-multipoint links over an Internet Protocol network.