Does Linux computers suffer from ARP attacks?

1. Environment my machine Ubuntu8.04 Cat: Iron send domestic cat, non Huawei, I do not know a brand router TL-WR340G54M Wireless Router Network Shanxi tietong broadband 2, phenomenon: I bought it normally six months ago and it was only in the last week. The Wired connection that I use will restart even if I only connect to one machine and only use the TERM. When I lose the IP address, the routing indicator lights are out except the power supply. The computer shows that the network cable is pulled out. In severe cases, the cables are pulled once every minute, on average.

1. Environment
My machine Ubuntu 8.04
Cat: A Chinese cat sent by iron Tong. It is not a brand that I don't know.
Router TL-WR340G 54 M Wireless Router
Network Shanxi tietong broadband

2. symptom:
I bought it normally six months ago and it was only in the last week. The Wired connection that I use will restart even if I only connect to one machine and only use the TERM. When I lose the IP address, the routing indicator lights are out except the power supply. The computer shows that the network cable is pulled out. In severe cases, the cable is pulled once every minute, and the average is once every 10 minutes.

3. Exclude
The same applies to other machines and network cables, or even wireless networks.

4. Network Search
Using ACK in request as the keyword, the online query results all say that the machine has an ARP virus, but what I want is Linux, which is strange.

5. Y ??????????

Appendix: Route log:

System Logs

Index log Content
1 0000: The system is started successfully.
2 0003: Enable Automatic Connection for PPPoE.
3 0003: Standard authentication.
4 0003: Send a PADI request to establish a connection.
5 0003: PPPOE_TAG_SVC_NAME = null
6 0003: The first service name is accepted.
7 0003: receive PADO, AC-Name = LL-ZXJ-ZX10600, AC-MAC = 00D0D0C60FA0.
8 0003: Send PADR.
9 0003: receive PADS, Session-ID = 0x89E, AC-MAC = 00D0D0C60FA0.
10 0003: LCP tx Req, MRU = 05C8; Magic = 00002933;
11 0003: lcp rx Req, Auth = C2; 23; 05; Magic = 37270000;
12 0003: LCP tx Ack, Auth = C2; 23; 05; Magic = 37270000;
13 0003: lcp rx Ack, MRU = 05C8; Magic = 00002933;
14 0003: chap rx Challenge.
15 0003: CHAP tx Response.
16 0003: CHAP: password verification failed.
17 0003: lcp rx Terminate Req.
18 0003: LCP tx Terminate Ack.
19 0003: the server disconnects the request when receiving the PADT.
20 0006: DHCPS: 1: 0x0015f28517cf, 192.168.1.101, ACK in request.
21 0043: PPPoE Enables automatic connection.
22 0043: Standard authentication.
23 0044: Send a PADI request to establish a connection.
24 0044: PPPOE_TAG_SVC_NAME = null
25 0044: The first service name is accepted.
26 0044: receive PADO, AC-Name = LL-ZXJ-ZX10600, AC-MAC = 00D0D0C60FA0.
27 0044: Send PADR.
28 0044: receive PADS, Session-ID = 0x8BA, AC-MAC = 00D0D0C60FA0.
29 0044: LCP tx Req, MRU = 05C8; Magic = 00000F99;
30 0044: lcp rx Req, Auth = C2; 23; 05; Magic = B6220000;
31 0044: LCP tx Ack, Auth = C2; 23; 05; Magic = B6220000;
32 0044: lcp rx Ack, MRU = 05C8; Magic = 00000F99;
33 0044: chap rx Challenge.
34 0044: CHAP tx Response.
35 0044: CHAP: Password Verification Successful.
36 0044: IPCP tx Req, IP = 00000000; DNS1 = 00000000; DNS2 = 00000000;
37 0044: ipcp rx Req, IP = DE257401;
38 0044: IPCP tx Ack, IP = DE257401;
39 0045: IPCP tx Req, IP = 00000000; DNS1 = 00000000; DNS2 = 00000000;
40 0045: ipcp rx Nak, IP = DE2574A1; DNS1 = CA63C042; DNS2 = D3620204;
41 0045: IPCP tx Req, IP = DE2574A1; DNS1 = CA63C042; DNS2 = D3620204;
42 0045: ipcp rx Ack, IP = DE2574A1; DNS1 = CA63C042; DNS2 = D3620204;
43 0045: PPP connection succeeded. 222.37.116.161.
44 0910: DHCPS: 1: 0x0015f28517cf, 192.168.1.101, ACK in request.
45 0921: DHCPS: 1: 0x0015f28517cf, 192.168.1.101, ACK in request.

Time = 20:47:50 1285 s
H-Ver = WR340G v5 08118989: S-Ver = 3.7.1 Build 071108 Rel.48535n
L = 192.168.1.1: M = 255.255.255.0
W1 = PPPoE: W = 222.37.116.161: M = 255.255.255.0: G = 222.37.116.161
Free = 3063, Busy = 35, Bind = 33, Inv = 0/2, Bc = 0/0, Dns = 63, cl = 96, fc = 0/0, sq = 0/0

(Provider: look up at the sky)