Can the peer devices on PPP networks ping each other if their IP addresses are not in the same network segment

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The peer devices on the PPP network can ping each other even if their IP addresses are not in the same network segment. According to the NCP protocol under the PPP protocol, a device can obtain the IP address of its peer device. Therefore, peer devices can ping each other even if their IP addresses are not in the same network segment.

Other related questions:
If the IP addresses of devices on both ends of a PPP link are not on the same network segment, can the two devices ping each other
Yes. Network Control Protocol (NCP) in Point-to-Point Protocol (PPP) can be used to obtain the IP address of the peer device. Therefore, even if the IP addresses of both ends of the link are not on the same network segment, the two devices can ping each other.

Must the IP addresses of the two peer ends on FR networks be in the same network segment
The IP addresses of two peer ends have no need to be configured in the same network segment if both ends are both AR routers.

Can an AR allocate IP addresses based on secondary IP addresses
All AR models allocate IP addresses based on the primary IP address, regardless of whether the interface or global address pool is used. The AR cannot allocate IP addresses based on the secondary IP address, that is, user terminals cannot obtain IP addresses on the same network segment as the secondary IP address.

Does the AR support difference of network segments between an interface IP address and a virtual IP address of VRRP
The AR does not support difference of network segments between an interface IP address and a virtual IP address of VRRP. The IP addresses must be set to the same network segment.

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